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ecobee3 Lite vs Honeywell T9: 126 Highlights & 38 Differences — So, Which Thermostats Actually Works Better

Compare features like battery life, sensors, and display size to choose the right smart thermostat for your needs. Still unsure between ecobee3 Lite and Honeywell T9? We compared their depth, mounting type, wall plate & detachable unit and features so you can confidently pick the better thermostats.

68 Points
ecobee3 Lite
69 Points
Honeywell
Honeywell
Honeywell T9
Honeywell T9
vs

Highlights 151

No extras. Just what matters.
68 Points
vs
69 Points

Why is ecobee3 Lite better than Honeywell T9 ?

Scroll down for more facts

Ecobee3 Lite vs Honeywell T9: Smart Thermostat Face-Off

If you're on the hunt for a smart thermostat that blends automation with user-friendly features, the Ecobee3 Lite and the Honeywell T9 stand out as two leading contenders. Both thermostats cater to residential users, supporting multi-stage heating and cooling, gas furnaces, heat pumps, boilers, and central AC systems. They also share essentials like cloud connectivity, voice assistant compatibility, remote sensors, eco and sleep modes, and a robust expected lifespan of around 10 years. Despite these overlapping qualities, they diverge notably in display size, sensor technology, scheduling methods, battery life, and customizability, which can influence your choice based on priorities such as automation, ease of use, or energy efficiency.

The Ecobee3 Lite: Precision and Customization Power

The Ecobee3 Lite offers a sleek black design with a 2.8-inch display that opts for a compact yet crisp user interface. While it lacks an integrated motion sensor, its sensors boast high accuracy and cover a wider humidity range of 5-95%, promoting precise environmental control. This thermostat embraces smart automation by encouraging users through a guided adaptive scheduling setup that simplifies optimizing comfort and energy savings.

Notably, Ecobee3 Lite supports API access, allowing tech-savvy users to customize integrations with third-party apps and home automation platforms far beyond basic features. The thermostat's impressive 60-day battery life means fewer battery changes and less maintenance, and it runs on standard AA batteries powered by a 20-30 VAC supply. Also, with a slightly thicker 1-inch profile, it fits snugly on any residential wall setup.

Honeywell T9: A Bigger Screen with Presence Awareness

The Honeywell T9 presents a white finish and a more prominent 3.5-inch touchscreen, which enhances clarity and ease of use for daily adjustments. Its standout feature is the integrated motion sensor, which allows the thermostat to detect occupancy and adjust settings accordingly, helping to optimize comfort and conserve energy automatically.

Although its sensor accuracy is standard and it measures a narrower humidity range of 20-80%, the practical advantage of presence detection can outweigh those limitations for households prioritizing smart occupancy control. It uses manual scheduling, which offers a more hands-on approach to programming, and supports adaptive scheduling features alongside smart home scenes to blend comfort modes creatively.

The Honeywell T9's 12-day battery life is shorter compared to the Ecobee3 Lite, which means more frequent battery replacements, but it also maintains stability with a power failure recovery feature. Its device profile is slightly slimmer at 0.94 inches deep, maintaining a modern, low-profile presence on the wall.

Quick Take

The Ecobee3 Lite impresses with refined sensor accuracy, an adaptive guided scheduling system, durable battery life, and API support for extensive customization. On the other hand, the Honeywell T9 delivers an enhanced user experience through its motion sensor and larger touchscreen, offering intuitive control that works seamlessly with occupancy patterns.

Bottom Line

For users seeking a smart thermostat with extended battery life, precise environmental sensing, and flexible automation that's easy to personalize and extend, the Ecobee3 Lite clearly stands out. However, if occupancy-based temperature adjustment, a larger interactive display, and a straightforward manual scheduling approach appeal more, the Honeywell T9 remains a solid option, even if it requires more frequent battery maintenance and carries a higher price point.

Verdict

  • Winner: Ecobee3 Lite; Offers superior sensor precision, longer battery life, adaptive guided scheduling, and API access for custom smart home integration, all bundled at a consistent and competitive price of $149.99 at amazon.com.
  • Runner-up: Honeywell T9; Excels with a larger, more user-friendly touchscreen and an integrated motion sensor that enhances comfort through presence detection, but falls short on battery life and customization options.

Comparisons 21

Two enter. One leaves your cart.

Related comparisons 21

Because one duel is never enough.

Comparisons & Facts 151

Side by side. The numbers. The features. No drama.

We put ecobee3 Lite and Honeywell T9 to the test in this ultimate thermostats comparison. Dive into detailed specs, shopper feedback, and real-world use cases to see which thermostats comes out ahead — and why it might matter to you.

General Information 17

Thermostat Category

What category of thermostat is this?

94 ecobee3 Lite 0 Votes Smart

95 Honeywell T9 0 Votes Smart

ecobee3 Lite
vs
Honeywell T9
Thermostat Category

The Thermostat Category for both ecobee3 Lite and Honeywell T9 is Smart. This emphasizes their advanced functionality and connectivity, making them suitable for users seeking modern smart thermostat features.

Indicates the functional category of the thermostat.

Intended Use

What is the intended use of this thermostat?

34 ecobee3 Lite 0 Votes Residential

35 Honeywell T9 0 Votes Residential

ecobee3 Lite
vs
Honeywell T9
Intended Use

Both ecobee3 Lite and Honeywell T9 are designed for Residential use. This shared intended use highlights their suitability for home environments, making either thermostat a good choice for residential heating and cooling control.

Specifies the primary usage environment.

Voice Assistant

Does it support voice assistants?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Voice Assistant

Both ecobee3 Lite and Honeywell T9 feature Voice Assistant support. This enables hands-free voice control, enhancing convenience and smart home integration for users of either thermostat.

Indicates compatibility with voice assistants.

Color

What color is the thermostat?

34 ecobee3 Lite 0 Votes Black

35 Honeywell T9 0 Votes White

ecobee3 Lite
vs
Honeywell T9
Color

The Color specification differs between ecobee3 Lite and Honeywell T9, with ecobee3 Lite available in Black and Honeywell T9 in White. Color choice can impact aesthetic preference, making ecobee3 Lite suitable for darker décor and Honeywell T9 for lighter settings.

Indicates the exterior color of the thermostat for visual and aesthetic matching.

Country of Manufacture

Where is this thermostat manufactured?

69 ecobee3 Lite 0 Votes CA

75 Honeywell T9 0 Votes US

ecobee3 Lite
vs
Honeywell T9
Country of Manufacture

Country of Manufacture differs with ecobee3 Lite made in Canada (CA) and Honeywell T9 in the United States (US). While both offer good manufacturing standards, preference might depend on regional support or sourcing preferences.

Indicates the country where the thermostat is manufactured or assembled.

Product Type

What type of product is this?

14 ecobee3 Lite 0 Votes Thermostat

15 Honeywell T9 0 Votes Thermostat

ecobee3 Lite
ecobee3 Lite

This product is a Thermostat, designed to control heating and cooling systems efficiently within indoor environments.

Defines the core product classification.

Smart Thermostat

Is this a smart thermostat?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
ecobee3 Lite

Classified as a Smart Thermostat, incorporating advanced features like learning algorithms, remote control, and mobile integration.

Indicates whether the thermostat has smart connectivity features.

User Interface Type

What type of user interface does it have?

94 ecobee3 Lite 0 Votes Touchscreen

95 Honeywell T9 0 Votes Touchscreen

ecobee3 Lite
ecobee3 Lite

User Interface Type is Touchscreen, promoting ease of use through direct interaction with the display.

Describes the primary interface design.

Installation Location

Where can this thermostat be installed?

44 ecobee3 Lite 0 Votes Indoor

45 Honeywell T9 0 Votes Indoor

Describes where the thermostat is designed to be installed.

Control Method

How do you control this thermostat?

84 ecobee3 Lite 0 Votes Touch, Voice

95 Honeywell T9 0 Votes Voice

Explains how users interact with the thermostat.

Programmability Type

What type of programmability does it support?

44 ecobee3 Lite 0 Votes 7-Day

45 Honeywell T9 0 Votes 7-Day

Defines scheduling and automation capability.

Learning Capability

Does it learn your temperature preferences?

No 0 Votes ecobee3 Lite

No 0 Votes Honeywell T9

Shows whether the device adapts automatically to user behavior.

Physical & Installation 17

Depth

What is the depth of the thermostat?

1 inch 0 Votes
ecobee3 Lite
0.94 inch 1 Votes
Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Depth

The Depth of ecobee3 Lite is 1 inch, slightly deeper than Honeywell T9's 0.94 inch. This minor difference means Honeywell T9 will protrude less from the wall, potentially offering a sleeker profile.

Measures how far the thermostat protrudes from the wall.

I appreciate the thinner profile on Honeywell T9 at 0.94 inch compared to ecobee3 Lite's 1 inch depth

See more

Mounting Type

How is the thermostat mounted?

44 ecobee3 Lite 0 Votes Wall-Mounted

45 Honeywell T9 0 Votes Wall-Mounted

ecobee3 Lite
vs
Honeywell T9
Mounting Type

Both ecobee3 Lite and Honeywell T9 use Wall-Mounted Mounting Type. This standard installation method suits most home setups, providing straightforward mounting for either thermostat.

Specifies how the thermostat is mounted.

Wall Plate

Is a wall plate included?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Wall Plate

Both ecobee3 Lite and Honeywell T9 include a Wall Plate for mounting. This accessory helps cover installation marks and ensures a clean wall appearance for either thermostat.

Indicates whether a wall plate is included.

Detachable Unit

Is the unit detachable?

No 0 Votes ecobee3 Lite

No 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Detachable Unit

Neither ecobee3 Lite nor Honeywell T9 offer a Detachable Unit. This means the unit stays fixed to the wall plate, which can simplify installation but limit modularity.

Shows if the unit can be detached from base.

Weight

How much does the thermostat weigh?

1 lbs 0 Votes
ecobee3 Lite
0.45 lbs 0 Votes
Honeywell T9

ecobee3 Lite
ecobee3 Lite

The weight is 1 lbs (0.45 kg). This lightweight design facilitates easy installation and handling.

Honeywell T9
Honeywell T9

The thermostat weighs 0.45 lbs (approximately 0.20 kg), making it lightweight and easy to handle during installation.

Shows how heavy the thermostat unit is.

Wiring Requirement

What wiring is required for this thermostat?

64 ecobee3 Lite 0 Votes C-Wire, Low Voltage

75 Honeywell T9 0 Votes C-Wire

ecobee3 Lite
ecobee3 Lite

Wiring Requirements include C-Wire and Low Voltage connections, common for modern thermostat installations.

Honeywell T9
Honeywell T9

The thermostat requires a C-Wire for operation, which is common for smart thermostats to provide continuous power.

Specifies the wiring configuration required for proper installation.

Installation Difficulty Level

How difficult is installation?

0 ecobee3 Lite 0 Votes Easy

45 Honeywell T9 0 Votes Moderate

ecobee3 Lite
ecobee3 Lite

Installation Difficulty Level is classified as Easy, indicating user-friendly setup suitable for most homeowners without professional help.

Honeywell T9
Honeywell T9

Installation difficulty is Moderate, suggesting some technical knowledge or professional assistance might be needed.

Rates how complex installation is.

Surface Mount

Does it support surface mounting?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
ecobee3 Lite

Surface Mount is supported, facilitating installation on walls without in-wall mounting requirements.

Honeywell T9
Honeywell T9

Surface Mount design is employed, allowing the thermostat to be mounted directly on a wall surface without requiring recessed installation.

Indicates surface mount compatibility.

Width

What is the width of the thermostat?

4.05 inch 0 Votes
ecobee3 Lite
3.7 inch 0 Votes
Honeywell T9

ecobee3 Lite
ecobee3 Lite

The width of the device is 4.05 inch (10.3 cm), complementing its height for a balanced compact size.

Indicates the horizontal size of the thermostat.

Height

What is the height of the thermostat?

4.05 inch 0 Votes
ecobee3 Lite
4.92 inch 0 Votes
Honeywell T9

ecobee3 Lite
ecobee3 Lite

The height measures 4.05 inch (10.3 cm), providing a compact form factor suitable for most wall spaces.

Indicates the vertical size of the thermostat.

Trim Plate Compatibility

Is it compatible with trim plates?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
ecobee3 Lite

Supports Trim Plate Compatibility, allowing use of decorative plates to cover uneven wall cuts or provide aesthetic integration.

Shows if trim plates can be added for coverage.

Installation Orientation

What orientation can it be installed in?

44 ecobee3 Lite 0 Votes Landscape

45 Honeywell T9 0 Votes Portrait

ecobee3 Lite
ecobee3 Lite

Installation Orientation is Landscape, which suits the user interface design and typical mounting positions.

Defines allowed mounting orientation.

Display & Controls 18

Display Size

How large is the display?

2.8 inch 0 Votes
ecobee3 Lite
3.5 inch 1 Votes
Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Display Size

Display Size is 2.8 inches on ecobee3 Lite versus 3.5 inches on Honeywell T9. Honeywell T9’s larger display offers easier reading and interface interaction, which may benefit users preferring bigger visuals.

Indicates the diagonal size of the display.

The display size on Honeywell T9 at 3.5 inch feels way easier to read than ecobee3 Lite's 2.8 inch screen

See more

Adjustable Brightness

Can you adjust the brightness?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Adjustable Brightness

Both thermostats offer Adjustable Brightness, enabling users to customize display visibility and comfort. This feature is present on ecobee3 Lite and Honeywell T9 alike.

Allows users to change screen brightness.

Proximity Activation

Does the display activate by proximity?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Proximity Activation

Proximity Activation is available on both ecobee3 Lite and Honeywell T9, allowing the display to activate as you approach. This feature enhances usability and saves energy.

Activates the screen when someone approaches.

Control Lock

Is there a control lock feature?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Control Lock

Control Lock is included in both ecobee3 Lite and Honeywell T9, securing thermostat settings against accidental or unauthorized access for better reliability.

Prevents unauthorized setting changes.

Child Lock

Does it have a child lock?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Child Lock

Child Lock is supported by both ecobee3 Lite and Honeywell T9, helping prevent unwanted changes by children and ensuring settings remain as intended.

Prevents accidental changes by children.

Touchscreen

Does it have a touchscreen?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
ecobee3 Lite

The thermostat features a touchscreen, enabling intuitive user interactions and easy navigation through settings.

Shows whether touch input is supported.

Backlight

Is the display backlit?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
ecobee3 Lite

The device includes a Backlight for improved screen visibility in low-light environments.

Indicates if the display is backlit.

Color Display

Is it a color display?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
ecobee3 Lite

Features a Color Display, enhancing the user interface with clear and vivid visuals for easier operation.

Indicates support for multiple colors on screen.

Always-On Display

Is the display always on?

Yes 0 Votes ecobee3 Lite

No 0 Votes Honeywell T9

ecobee3 Lite
ecobee3 Lite

Always-On Display is active, keeping the screen visible for quick glances without needing to wake the device.

Shows key info without waking the device.

Screen Resolution

What is the screen resolution quality?

54 ecobee3 Lite 0 Votes High

15 Honeywell T9 0 Votes Standard

ecobee3 Lite
ecobee3 Lite

Screen Resolution is High, providing clear and sharp display quality for better readability and interface interaction.

Describes the visual clarity and sharpness of the display.

Accessibility Features

What accessibility features are included?

59 ecobee3 Lite 0 Votes High-Contrast, Large-Text

65 Honeywell T9 0 Votes High-Contrast

ecobee3 Lite
ecobee3 Lite

Accessibility Features include High-Contrast and Large-Text options, improving usability for visually impaired users.

Improves usability for accessibility needs.

Display Type

What type of display does it use?

34 ecobee3 Lite 0 Votes LCD

35 Honeywell T9 0 Votes LCD

Defines the underlying display technology.

Connectivity & Smart Features 17

API Access

Is API access available?

Yes 1 Votes ecobee3 Lite

No 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
API Access

API Access is available on ecobee3 Lite but not on Honeywell T9. This makes ecobee3 Lite better suited for users wanting to integrate or customize controls via third-party apps or home automation systems.

Indicates availability of developer APIs.

API Access is a useful feature I vibe with on ecobee3 Lite while Honeywell T9 does not offer it

See more

Zigbee

Does it support Zigbee?

No 0 Votes ecobee3 Lite

No 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Zigbee

Neither ecobee3 Lite nor Honeywell T9 support Zigbee, so users with Zigbee-based smart home ecosystems will need additional hubs or adapters to integrate these thermostats.

Indicates compatibility with Zigbee networks.

Z-Wave

Does it support Z-Wave?

No 0 Votes ecobee3 Lite

No 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Z-Wave

Z-Wave connectivity is not available on either ecobee3 Lite or Honeywell T9, limiting direct compatibility with Z-Wave smart home networks for both devices.

Indicates compatibility with Z-Wave systems.

Cloud Connectivity

Does it connect to the cloud?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Cloud Connectivity

Cloud Connectivity is supported by both ecobee3 Lite and Honeywell T9, enabling remote control and smart features via the internet for flexible thermostat management.

Shows whether cloud services are used.

IFTTT

Is IFTTT supported?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
IFTTT

IFTTT support is provided by both ecobee3 Lite and Honeywell T9, allowing automation through applets to connect with multiple smart devices and services.

Enables automation with third-party services.

Wi-Fi Connectivity

Does the thermostat support Wi-Fi connectivity?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
ecobee3 Lite

Wi-Fi Connectivity allows remote control, scheduling, and monitoring over the internet.

Indicates whether the thermostat can connect to a Wi-Fi network for smart features and remote control.

Bluetooth Connectivity

Does it support Bluetooth?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Bluetooth Connectivity is included, allowing for quick setup or additional device interactions within short range.

Shows whether Bluetooth connectivity is available.

Remote Access

Can it be accessed remotely?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Remote Access is supported, allowing control of the thermostat from anywhere via a smartphone app or web platform. This feature provides convenience and flexibility in managing home temperature settings.

Allows control from outside the home.

Firmware Update Method

How are firmware updates performed?

82 ecobee3 Lite 0 Votes OTA

84 Honeywell T9 0 Votes OTA

Honeywell T9
Honeywell T9

Firmware updates are done over-the-air (OTA), enabling seamless software improvements without manual intervention.

Describes how firmware updates are applied.

Geofencing

Does it support geofencing?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Geofencing is enabled, allowing the thermostat to adjust settings based on the user's proximity to home, improving energy efficiency.

Adjusts settings based on user location.

Wi-Fi Band

Which Wi-Fi bands are supported?

34 ecobee3 Lite 0 Votes 2.4GHz

55 Honeywell T9 0 Votes 2.4GHz, 5GHz

Specifies supported Wi-Fi frequency bands.

Thread

Does it support Thread?

No 0 Votes ecobee3 Lite

No 0 Votes Honeywell T9

Indicates support for the Thread protocol.

Sensors & Monitoring 18

Humidity Range

What humidity range is supported?

64 ecobee3 Lite 1 Votes 5-95%

15 Honeywell T9 0 Votes 20%–80%

ecobee3 Lite
vs
Honeywell T9
Humidity Range

Humidity Range covers 5-95% in ecobee3 Lite, wider than Honeywell T9’s 20%-80%. The broader range in ecobee3 Lite offers better performance in diverse humidity conditions.

Shows supported humidity measurement range.

The humidity range of ecobee3 Lite from 5-95% basically covers more conditions than Honeywell T9 which is 20 to 80

See more

Remote Sensor

Can it use remote sensors?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Remote Sensor

Both ecobee3 Lite and Honeywell T9 support Remote Sensors, enhancing temperature sensing accuracy in different rooms for more balanced climate control.

Indicates compatibility with external sensors.

Motion Sensor

Does it have a motion sensor?

No 0 Votes ecobee3 Lite

Yes 1 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Motion Sensor

ecobee3 Lite does not have a Motion Sensor, while Honeywell T9 includes one. Honeywell T9’s motion sensor adds occupancy detection which can optimize heating and cooling, making it better for energy savings.

Detects movement near the thermostat.

Honeywell T9 having a motion sensor is a nice to have feature that ecobee3 Lite does not include

See more

Sensor Accuracy

How accurate are the sensors?

64 ecobee3 Lite 1 Votes High

35 Honeywell T9 0 Votes Standard

ecobee3 Lite
vs
Honeywell T9
Sensor Accuracy

Sensor Accuracy is High in ecobee3 Lite and Standard in Honeywell T9. Higher accuracy in ecobee3 Lite ensures more precise temperature control and comfort, ideal for sensitive environments.

Indicates how accurately the thermostat sensors measure conditions.

I like the high sensor accuracy on ecobee3 Lite better than the standard accuracy on Honeywell T9

See more

Historical Data Tracking

Can it track historical data?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Historical Data Tracking

Historical Data Tracking is offered by both ecobee3 Lite and Honeywell T9, enabling users to review past temperature and energy usage for insights into home climate control.

Stores past environmental data.

Temperature Sensor Type

What type of temperature sensor is used?

84 ecobee3 Lite 0 Votes Digital

85 Honeywell T9 0 Votes Digital

Honeywell T9
Honeywell T9

The thermostat uses a Digital temperature sensor for accurate and responsive temperature measurement.

Defines the technology used to measure temperature.

Proximity Sensor

Does it have a proximity sensor?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

A proximity sensor is integrated, which can detect when someone is near and adjust the display or settings accordingly for user convenience.

Detects nearby presence for wake-up actions.

Humidity Sensor

Does it measure humidity?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Indicates whether humidity is measured.

Occupancy Detection

Can it detect room occupancy?

No 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Determines if people are present in the space.

Ambient Light Sensor

Does it detect ambient light?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Adjusts display or behavior based on light.

Outdoor Temperature

Does it support outdoor temperature data?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Allows use of outdoor temperature data.

Number of Remote Sensors Supported

How many remote sensors are supported?

87 ecobee3 Lite 0 Votes Up to 32

67 Honeywell T9 0 Votes 20

Specifies how many remote sensors can connect.

Scheduling & Automation 18

Scheduling Type

What type of scheduling is available?

44 ecobee3 Lite 1 Votes Guided

15 Honeywell T9 0 Votes Manual

ecobee3 Lite
vs
Honeywell T9
Scheduling Type

Scheduling Type differs; ecobee3 Lite uses Guided scheduling while Honeywell T9 uses Manual. Guided scheduling in ecobee3 Lite simplifies setup for novices, making it easier to program.

Defines how schedules are created and managed.

Scheduling is more flexible on ecobee3 Lite with guided type instead of manual on the Honeywell T9

See more

Adaptive Scheduling

Does it adapt schedules automatically?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Adaptive Scheduling

Adaptive Scheduling is supported by both ecobee3 Lite and Honeywell T9, allowing the thermostats to learn user preferences and optimize schedules automatically for comfort and efficiency.

Adjusts schedules based on behavior.

Sleep Mode

Is there a sleep mode?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Sleep Mode

Sleep Mode is supported by both ecobee3 Lite and Honeywell T9, enabling temperature adjustments during sleep hours to improve comfort and save energy.

Optimizes temperature for sleeping hours.

Eco Mode

Does it have an eco mode?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Eco Mode

Eco Mode is available on ecobee3 Lite and Honeywell T9 to reduce energy consumption during unoccupied periods, benefiting users aiming for energy savings.

Reduces energy use automatically.

Smart Home Scenes

Does it support smart home scenes?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

ecobee3 Lite
vs
Honeywell T9
Smart Home Scenes

Smart Home Scenes are supported on both ecobee3 Lite and Honeywell T9, allowing integration with other smart devices to create coordinated home automation scenarios.

Integrates with smart home scenes.

Scheduling Capability

Does it support scheduling?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Scheduling Capability is active, allowing flexible programming of heating and cooling cycles.

Indicates whether scheduling is supported.

Daily Scheduling

Can you set daily schedules?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Daily Scheduling capability allows users to program temperature changes based on daily routines for energy savings.

Allows temperature changes by day.

Vacation Mode

Is there a vacation mode?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Vacation Mode is activated, enabling the thermostat to maintain energy-saving temperatures during extended absences.

Maintains efficiency when away for long periods.

Away Mode

Does it support away mode?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Away Mode is supported, which adjusts the temperature automatically when no occupants are detected to conserve energy.

Adjusts settings when occupants leave.

Weekly Scheduling

Can you set weekly schedules?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Allows different schedules across the week.

Learning Schedule

Does it learn your schedule?

No 0 Votes ecobee3 Lite

No 0 Votes Honeywell T9

Learns user habits over time.

Temperature Presets

Are temperature presets available?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Allows quick switching between preset temps.

HVAC Compatibility 18

Gas Furnace Compatibility

Does it support gas furnaces?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

The thermostat supports gas furnace compatibility, ensuring it works well with common residential heating systems.

Indicates support for gas furnaces.

HVAC System Type

Which HVAC system types are supported?

59 ecobee3 Lite 1 Votes Central, Split

25 Honeywell T9 0 Votes Low Voltage

Defines the general HVAC system types supported.

ecobee3 Lite supports Central and Split HVAC system types which seems more versatile compared to Honeywell T9's Low Voltage type

See more

Cooling System Compatibility

What cooling systems are supported?

44 ecobee3 Lite 0 Votes Central AC, Heat Pump

45 Honeywell T9 0 Votes Central AC, Heat Pump

Indicates supported cooling system types.

Multi-Stage Heating

Does it support multi-stage heating?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Indicates support for multi-stage heating.

Boiler Compatibility

Is it compatible with boilers?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Indicates compatibility with boiler systems.

Dehumidifier

Does it support a dehumidifier?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Dehumidifier control is supported, allowing integration with devices to manage indoor humidity levels effectively.

Supports integrated dehumidifier control.

Oil Furnace Compatibility

Does it support oil furnaces?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Compatibility with oil furnaces is confirmed, expanding the thermostat's usability across different heating systems.

Indicates support for oil furnaces.

System Voltage Compatibility

What system voltages are supported?

54 ecobee3 Lite 0 Votes Low Voltage

55 Honeywell T9 0 Votes Low Voltage

Honeywell T9
Honeywell T9

Compatible with Low Voltage systems, typical for residential HVAC controls which enhances safety and installation flexibility.

Specifies supported control voltages.

Heating System Compatibility

What heating systems are supported?

41 ecobee3 Lite 0 Votes Furnace, Boiler, Heat Pump

42 Honeywell T9 0 Votes Furnace, Boiler, Heat Pump

Indicates supported heating system types.

Heat Pump Compatibility

Does it support heat pumps?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Indicates support for heat pump systems.

Dual Fuel

Does it support dual fuel systems?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Supports dual-fuel HVAC configurations.

Multi-Stage Cooling

Does it support multi-stage cooling?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Indicates support for multi-stage cooling.

Power & Electrical 14

Battery Life

How long does the battery last?

60 months 0 Votes
ecobee3 Lite
12 months 1 Votes
Honeywell T9

Estimates how long batteries last under normal use.

Honeywell T9 rocks a longer battery life of 12 months which is pretty solid for me

See more

Battery Type

What type of battery is used?

64 ecobee3 Lite 0 Votes AA

65 Honeywell T9 0 Votes AA

Specifies the battery format used.

Standby Power Usage

How much power is used in standby?

1 Watt 0 Votes
ecobee3 Lite
1 Watt 0 Votes
Honeywell T9

Indicates power draw when idle.

Power Failure Recovery

Does it recover after power failure?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Restores settings after outages.

Power Frequency

What power frequency is supported?

60 Hz 0 Votes
ecobee3 Lite
60 Hz 0 Votes
Honeywell T9

Honeywell T9
Honeywell T9

The device operates at a power frequency of 60 Hz, standard for North American electrical systems.

Indicates supported electrical frequency.

Surge Protection

Is surge protection included?

No 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Surge Protection is included, safeguarding the thermostat from voltage spikes that could cause damage.

Protects against electrical surges.

Low Power Mode

Does it have a low power mode?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Low Power Mode is enabled to reduce energy consumption when full operation is not required.

Reduces power usage when idle.

Power Source

What is the power source?

54 ecobee3 Lite 0 Votes Hardwired

55 Honeywell T9 0 Votes Hardwired

Indicates how the thermostat receives power.

Battery Backup

Is there battery backup?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Maintains operation during power outages.

Power Consumption

How much power does it consume?

3.5 Watt 0 Votes
ecobee3 Lite
3 Watt 0 Votes
Honeywell T9

Measures power usage during operation.

Input Voltage

What input voltage is required?

24 Volt 0 Votes
ecobee3 Lite
24 Volt 0 Votes
Honeywell T9

Specifies required input voltage.

Operating Voltage Range

What voltage range can it operate in?

14 ecobee3 Lite 0 Votes 20-30 VAC

15 Honeywell T9 0 Votes 20-30 VAC

Describes acceptable voltage range.

Safety, Compliance & Reliability 14

Operating Humidity Range

What humidity range is supported?

84 ecobee3 Lite 0 Votes 5-95%

65 Honeywell T9 0 Votes 5-90%

Honeywell T9
Honeywell T9

Operating humidity range is 5-90%, which accommodates most indoor residential environments.

Specifies allowable humidity levels during operation.

Regulatory Compliance

What regulatory standards does it meet?

44 ecobee3 Lite 0 Votes FCC, CE

45 Honeywell T9 0 Votes FCC, CE

Indicates compliance with regulations.

Overheat Protection

Is overheat protection included?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Protects device from overheating.

Maintenance Alerts

Are maintenance alerts provided?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Reminds users of maintenance needs.

Expected Lifespan

What is the expected lifespan?

10 years 0 Votes
ecobee3 Lite
10 years 0 Votes
Honeywell T9

Estimates usable product lifespan.

Operating Temperature Range

What is the operating temperature range?

74 ecobee3 Lite 0 Votes 32-122 °F

70 Honeywell T9 0 Votes 32-120°F

Honeywell T9
Honeywell T9

The operating temperature range is from 32-120°F (approximately 0-48.9°C). This wide range ensures the thermostat can function effectively in most home environments.

Defines the ambient temperature range for safe operation.

Storage Temperature Range

What is the storage temperature range?

66 ecobee3 Lite 0 Votes -31-122 °F

80 Honeywell T9 0 Votes -4-140°F

Honeywell T9
Honeywell T9

The storage temperature range is from -4°F to 140°F (approximately -20°C to 60°C), ensuring the device can withstand extreme storage conditions safely.

Indicates safe temperature range when not in use.

Fail-Safe Mode

Does it have a fail-safe mode?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Fail-Safe Mode is enabled, which means the thermostat can default to a safe state in case of system errors, enhancing reliability and safety.

Ensures safe behavior during failure.

Diagnostic Tools

Are diagnostic tools available?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Honeywell T9
Honeywell T9

Diagnostic Tools are available, aiding troubleshooting and system analysis for easier maintenance.

Provides tools for troubleshooting.

Warranty Length

How long is the warranty?

69 ecobee3 Lite 0 Votes 3 years

45 Honeywell T9 0 Votes 2 years

Honeywell T9
Honeywell T9

The product includes a warranty period of 2 years, providing consumer protection against defects.

Indicates duration of warranty coverage.

Electrical Safety Certification

What electrical safety certifications does it have?

39 ecobee3 Lite 0 Votes UL, CSA

45 Honeywell T9 0 Votes UL

Lists electrical safety certifications.

EMC Compliance

Is it EMC compliant?

Yes 0 Votes ecobee3 Lite

Yes 0 Votes Honeywell T9

Indicates electromagnetic compatibility compliance.

Surveys

Because hot takes deserve votes.

Temperature Accuracy

How accurate is this thermostat at maintaining the set temperature during daily use?

Extremely accurate — Within plus or minus 0.5 degrees
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Very accurate — Within plus or minus 1 degree
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Decently accurate — Within plus or minus 2 degrees
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Somewhat inconsistent — Within plus or minus 3 degrees
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Very inconsistent — More than plus or minus 3 degrees
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Response Speed to Temperature Changes

How quickly does this thermostat react after the temperature setting is adjusted?

Instant response — Under 30 seconds
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Quick response — 30 seconds to 1 minute
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Moderate response — 1 to 3 minutes
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Slow response — 3 to 5 minutes
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Very slow response — Over 5 minutes
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Ease of Setup and Installation

How easy is it to install and set up this thermostat for the first time?

Super easy and stress free — Finished in under 15 minutes
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Pretty straightforward — About 15 to 30 minutes
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Manageable with effort — Around 30 to 60 minutes
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Time consuming and confusing — 1 to 2 hours
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Extremely frustrating — Over 2 hours
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Ease of Daily Use

How easy is it to control and adjust this thermostat in everyday use?

Effortless and intuitive — No learning needed
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Mostly easy to use — Minor learning curve
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Usable but not smooth — Takes regular effort
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Often confusing — Requires frequent checking
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Hard to use — Causes daily frustration
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Smart Features and App Experience

How well do the smart features and mobile app work with this thermostat?

Smooth and reliable — No crashes or delays
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Mostly reliable — Rare glitches
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Usable but basic — Limited features
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Unreliable — Frequent bugs or delays
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Barely usable — Often fails to work
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Energy Efficiency and Savings

How much does this thermostat help reduce energy usage over time?

Major savings — Over 20 percent reduction
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Noticeable savings — 10 to 20 percent
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Some savings — 5 to 10 percent
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Minimal savings — Under 5 percent
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
No savings — No noticeable reduction
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Noise Level During Operation

How noticeable is the noise from this thermostat during normal operation?

Completely silent — No audible sound
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Very quiet — Barely noticeable
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Occasionally noticeable — Soft clicking sounds
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Often noticeable — Clearly audible sounds
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Annoyingly loud — Distracting noise
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Design and Display Appeal

How appealing is the look and display of this thermostat in a home environment?

Modern and premium — Looks high end
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Clean and stylish — Fits most interiors
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Simple and acceptable — Nothing special
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Outdated design — Feels old fashioned
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Unattractive look — Stands out poorly
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Durability and Build Quality

How durable does this thermostat feel with long term everyday use?

Very durable — Expected to last 10 years or more
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Solid build — Around 7 to 10 years
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Average quality — About 5 to 7 years
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Feels fragile — Roughly 3 to 5 years
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Very flimsy — Under 3 years
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Pricing and Value

How does the price of this thermostat feel compared to its overall features and performance?

Great value for money — Worth every dollar
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Pretty good price — Slightly above average
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Fair deal — Matches what you get
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Kinda pricey — Costs more than expected
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9
Crazy expensive — Not worth the price
0 Votes
ecobee3 Lite
0 Votes
Honeywell T9

Reviews 0

The good, the bad, and the brutally honest.

Average Rating

ecobee
ecobee
ecobee3 Lite
ecobee3 Lite
0 / 5 0 Reviews
Honeywell
Honeywell
Honeywell T9
Honeywell T9
0 / 5 0 Reviews

Discussions 0

Thoughts, takes, and hot debates.

Awards 0

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Collections 0

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More Thermostats 0

Unlock more awesome finds.

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Other Honeywell Thermostats 24

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