The Smart Device Compare comparison

Ecobee Smart Thermostat Premium vs Honeywell Home T9 Smart Thermostat

Understand the differences. Decide what matters to your home.

Before you compare every specification

Key differences between Ecobee Smart Thermostat Premium and Honeywell Home T9 Smart Thermostat

A summary of selected recorded differences between these thermostats. Check the full specification table below for details and conditions.

Feature differences among your selected devices

Air Quality Alerts (alerts): Ecobee Smart Thermostat Premium — Yes (Built-in air quality monitor alerts you when air quality is poor and offer tips on how to improve it. | Air filter change reminders make cleaner air a breeze.); Honeywell Home T9 Smart Thermostat — No.
5 GHz Wi-Fi (connectivity): Ecobee Smart Thermostat Premium — Yes (802.11 a/n/ac); Honeywell Home T9 Smart Thermostat — No.
Bluetooth (connectivity): Ecobee Smart Thermostat Premium — Yes (Bluetooth 5.0); Honeywell Home T9 Smart Thermostat — No.
Speaker (features): Ecobee Smart Thermostat Premium — Yes; Honeywell Home T9 Smart Thermostat — No (No built-in speaker or microphone: the official specs and the 36-page user guide list none, and voice control runs through Alexa, Google Assistant or Siri instead.).

Specifications to check side by side

Fire Alerts (alerts): Ecobee Smart Thermostat Premium — Subscription required (With a Smart Security subscription, your smart thermostat can detect the sound of a smoke alarm and notify you.); Honeywell Home T9 Smart Thermostat — No.
Intrude Alerts (alerts): Ecobee Smart Thermostat Premium — Subscription required (When you subscribe to ecobee Smart Security, Smart Thermostat Premium will play the siren if it detects an intruder. You will be notified instantly and can review details in the app and take appropriate action. When you arrive home, Smart Security can disarm automatically for more peace of mind and convenience with less hassle. ecobee home monitoring uses smart thermostat's advanced sensor, Wi-Fi, and geofencing technology to understand when your home is empty or occupied.); Honeywell Home T9 Smart Thermostat — No.
External Temperature Sensors Selection (features): Ecobee Smart Thermostat Premium — By presence; Honeywell Home T9 Smart Thermostat — Yes (Choose which rooms to prioritise, or let the sensors follow occupancy).
External Temperature Sensors (integrations): Ecobee Smart Thermostat Premium — YES (Included); Honeywell Home T9 Smart Thermostat — Yes (Smart Room Sensors with a range of up to 200 ft).

Information still to confirm

22 of 63 comparison fields lack a resolved value for at least one selected device. Missing information is not evidence that a feature is absent.
Check the full table and manufacturer documentation before ruling out a device.

These observations are derived from recorded catalog data and have not all been independently verified. Confirm details with the manufacturer before purchasing.

Compare capabilities, compatibility and setup requirements.

Option 1 · Ecobee

Ecobee Smart Thermostat Premium

Catalog update date not recorded

View full device profile

Option 2 · Honeywell Home

Honeywell Home T9 Smart Thermostat

Last updated October 2026

View full device profile

What the catalog tells us

Understand the tradeoffs.

These counts describe the available data, not a quality score. More features do not automatically make a better device.

12differences with recorded values for every device

22rows with missing or unspecified information

Your priorities, side by side

Focus on what changes.

Mark the specifications you care about. Open manufacturer sources for verification scope; fields without citations remain catalog data. Expand notes for other qualifications.

Differences onlyMy priorities (0)

Showing 63 of 63 rows. “Not recorded” does not mean “No”.

Reading layout

Alerts

Air Quality Alerts

Ecobee Smart Thermostat Premium: Yes
Catalog note
Built-in air quality monitor alerts you when air quality is poor and offer tips on how to improve it. | Air filter change reminders make cleaner air a breeze.
Honeywell Home T9 Smart Thermostat: No

Fire Alerts

Ecobee Smart Thermostat Premium: Subscription required
Catalog note
With a Smart Security subscription, your smart thermostat can detect the sound of a smoke alarm and notify you.
Honeywell Home T9 Smart Thermostat: No

Humidity Alerts

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Intrude Alerts

Ecobee Smart Thermostat Premium: Subscription required
Catalog note
When you subscribe to ecobee Smart Security, Smart Thermostat Premium will play the siren if it detects an intruder. You will be notified instantly and can review details in the app and take appropriate action. When you arrive home, Smart Security can disarm automatically for more peace of mind and convenience with less hassle. ecobee home monitoring uses smart thermostat's advanced sensor, Wi-Fi, and geofencing technology to understand when your home is empty or occupied.
Honeywell Home T9 Smart Thermostat: No

Low Battery Alerts

Ecobee Smart Thermostat Premium: Not applicable / unspecified
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Temperature Alerts

Ecobee Smart Thermostat Premium: Yes
Catalog note
Stay on top of your home's well-being, even while you're away, by being alerted to events like sudden temperature drops or spikes that could cause damage to your home.
Honeywell Home T9 Smart Thermostat: Yes

Connectivity

2.4 GHz Wi-Fi

Ecobee Smart Thermostat Premium

Yes

Manufacturer source

The thermostat supports 2.4 GHz Wi-Fi.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

802.11 b/g/n

Honeywell Home T9 Smart Thermostat

Yes

5 GHz Wi-Fi

Ecobee Smart Thermostat Premium

Yes

Manufacturer source

The thermostat supports 5 GHz Wi-Fi.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

802.11 a/n/ac

Honeywell Home T9 Smart Thermostat

Bluetooth

Ecobee Smart Thermostat Premium

Yes

Manufacturer source

Bluetooth 5.0 is specified.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Catalog note

Bluetooth 5.0

Honeywell Home T9 Smart Thermostat

Ethernet

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Other

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Thread

Ecobee Smart Thermostat Premium: No
Honeywell Home T9 Smart Thermostat: No

Z Wave

Ecobee Smart Thermostat Premium: No
Honeywell Home T9 Smart Thermostat: No

Zigbee

Ecobee Smart Thermostat Premium: No
Honeywell Home T9 Smart Thermostat: No

Display

Color Screen

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes
Catalog note
Graphical color touchscreen.

Screen

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes

Screen Resolution

Ecobee Smart Thermostat Premium

540 x 540 px

Manufacturer source

Display resolution is 540 by 540 pixels.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Honeywell Home T9 Smart Thermostat

Not recorded

Screen Size

Ecobee Smart Thermostat Premium

Manufacturer source

The display measures four inches.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Honeywell Home T9 Smart Thermostat

Not recorded

Screen Type

Ecobee Smart Thermostat Premium

LCD

Manufacturer source

The display is an LCD.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Honeywell Home T9 Smart Thermostat

LCD

Touch Screen

Ecobee Smart Thermostat Premium

Yes

Manufacturer source

The display supports touch controls.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Honeywell Home T9 Smart Thermostat

Yes

Features

Automations

Ecobee Smart Thermostat Premium: Yes
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Display Temperature

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes

Display Time

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes

Display Weather

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes

Energy Savings

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes
Catalog note
ENERGY STAR certified

External Temperature Sensors Selection

Ecobee Smart Thermostat Premium: By presence
Honeywell Home T9 Smart Thermostat: Yes
Catalog note
Choose which rooms to prioritise, or let the sensors follow occupancy

History Records

Ecobee Smart Thermostat Premium: Yes
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Speaker

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: No
Catalog note
No built-in speaker or microphone: the official specs and the 36-page user guide list none, and voice control runs through Alexa, Google Assistant or Siri instead.

System Health Monitor

Ecobee Smart Thermostat Premium: No
Honeywell Home T9 Smart Thermostat: Yes
Catalog note
Filter change and maintenance reminders

Voice Control

Ecobee Smart Thermostat Premium: Yes
Catalog note
Choice of Siri or Alexa Built-in
Honeywell Home T9 Smart Thermostat: Yes
Catalog note
Voice control through Amazon Alexa, Google Assistant and Apple HomeKit (Siri).

Included Accessories

Temperature Sensor

Ecobee Smart Thermostat Premium

Yes

Manufacturer source

A SmartSensor is included in the box.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Honeywell Home T9 Smart Thermostat

Yes

Catalog note

One Smart Room Sensor included in the box

Trim Plate

Ecobee Smart Thermostat Premium

Yes

Manufacturer source

A trim plate is included.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Honeywell Home T9 Smart Thermostat

Integrations

Alexa

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes

Apple Home

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes

External Temperature Sensors

Ecobee Smart Thermostat Premium: YES (Included)
Honeywell Home T9 Smart Thermostat: Yes
Catalog note
Smart Room Sensors with a range of up to 200 ft

Google Home

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes

Home Assistant

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes
Catalog note
Official Home Assistant Honeywell Total Connect Comfort integration, which covers the Wi-Fi thermostats on that account

Matter

Ecobee Smart Thermostat Premium: No
Honeywell Home T9 Smart Thermostat: No

SmartThings

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes

Power

Battery Life

Ecobee Smart Thermostat Premium: Not applicable / unspecified
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Battery Type

Ecobee Smart Thermostat Premium: Not applicable / unspecified
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Wired

Ecobee Smart Thermostat Premium: Yes
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Scheduling

Automatically

Ecobee Smart Thermostat Premium: Yes
Catalog note
Automatically turns down your temperature when nobody is home. | Learns your routine and recommends changes to your thermostat schedule for optimal energy savings. | Automatically heats or cools your home when electricity is more affordable and cleaner.
Honeywell Home T9 Smart Thermostat: Yes
Catalog note
Auto Home and Away scheduling with geofencing

Manually

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes

Suggestions

Ecobee Smart Thermostat Premium: No
Honeywell Home T9 Smart Thermostat: No

Sensors

Ambient Light

Ecobee Smart Thermostat Premium: No
Honeywell Home T9 Smart Thermostat: No

Ambient Noise

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Atmospheric Pressure

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

CO₂

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: No

Humidity

Ecobee Smart Thermostat Premium

Yes

Manufacturer source

A humidity sensor is included.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Honeywell Home T9 Smart Thermostat

Yes

Nox

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Occupancy

Ecobee Smart Thermostat Premium

Yes

Manufacturer source

Radar detects occupancy.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Honeywell Home T9 Smart Thermostat

Yes

Pm01

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Pm03

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Pm1

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Pm10

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

PM2.5

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Proximity Motion

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: Yes
Catalog note
Smart Room Sensors detect which rooms are occupied

Radon

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Temperature

Ecobee Smart Thermostat Premium

Yes

Manufacturer source

A temperature sensor is included.

Ecobee Smart Thermostat Premium manufacturer product page →

Source section: Display, thermostat sensors, connectivity and box contents
Model: Ecobee Smart Thermostat Premium
Region: US manufacturer page
Firmware: Not specified by this source
Checked: 2026-10-04

Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed.

Document check only; not a hands-on test or verification of every regional or firmware variant.

Honeywell Home T9 Smart Thermostat

Yes

TVOC

Ecobee Smart Thermostat Premium: Yes
Honeywell Home T9 Smart Thermostat: No

Ecobee Smart Thermostat Premium: No
Catalog note
Additional catalog field from the air-quality-monitors listing of this model.
Honeywell Home T9 Smart Thermostat: Not recorded

Specifications for Ecobee Smart Thermostat Premium versus Honeywell Home T9 Smart Thermostat
Specification	Ecobee Smart Thermostat Premium	Honeywell Home T9 Smart Thermostat
Alerts
Air Quality Alerts	Yes Catalog note Built-in air quality monitor alerts you when air quality is poor and offer tips on how to improve it. \| Air filter change reminders make cleaner air a breeze.	No
Fire Alerts	Subscription required Catalog note With a Smart Security subscription, your smart thermostat can detect the sound of a smoke alarm and notify you.	No
Humidity Alerts	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Intrude Alerts	Subscription required Catalog note When you subscribe to ecobee Smart Security, Smart Thermostat Premium will play the siren if it detects an intruder. You will be notified instantly and can review details in the app and take appropriate action. When you arrive home, Smart Security can disarm automatically for more peace of mind and convenience with less hassle. ecobee home monitoring uses smart thermostat's advanced sensor, Wi-Fi, and geofencing technology to understand when your home is empty or occupied.	No
Low Battery Alerts	Not applicable / unspecified Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Temperature Alerts	Yes Catalog note Stay on top of your home's well-being, even while you're away, by being alerted to events like sudden temperature drops or spikes that could cause damage to your home.	Yes
Connectivity
2.4 GHz Wi-Fi	Yes Manufacturer source The thermostat supports 2.4 GHz Wi-Fi. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note 802.11 b/g/n	Yes
5 GHz Wi-Fi	Yes Manufacturer source The thermostat supports 5 GHz Wi-Fi. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note 802.11 a/n/ac	No
Bluetooth	Yes Manufacturer source Bluetooth 5.0 is specified. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant. Catalog note Bluetooth 5.0	No
Ethernet	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Other	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Thread	No	No
Z Wave	No	No
Zigbee	No	No
Display
Color Screen	Yes	Yes Catalog note Graphical color touchscreen.
Screen	Yes	Yes
Screen Resolution	540 x 540 px Manufacturer source Display resolution is 540 by 540 pixels. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant.	Not recorded
Screen Size	4" Manufacturer source The display measures four inches. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant.	Not recorded
Screen Type	LCD Manufacturer source The display is an LCD. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant.	LCD
Touch Screen	Yes Manufacturer source The display supports touch controls. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes
Features
Automations	Yes Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Display Temperature	Yes	Yes
Display Time	Yes	Yes
Display Weather	Yes	Yes
Energy Savings	Yes	Yes Catalog note ENERGY STAR certified
External Temperature Sensors Selection	By presence	Yes Catalog note Choose which rooms to prioritise, or let the sensors follow occupancy
History Records	Yes Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Speaker	Yes	No Catalog note No built-in speaker or microphone: the official specs and the 36-page user guide list none, and voice control runs through Alexa, Google Assistant or Siri instead.
System Health Monitor	No	Yes Catalog note Filter change and maintenance reminders
Voice Control	Yes Catalog note Choice of Siri or Alexa Built-in	Yes Catalog note Voice control through Amazon Alexa, Google Assistant and Apple HomeKit (Siri).
Included Accessories
Temperature Sensor	Yes Manufacturer source A SmartSensor is included in the box. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes Catalog note One Smart Room Sensor included in the box
Trim Plate	Yes Manufacturer source A trim plate is included. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant.	No
Integrations
Alexa	Yes	Yes
Apple Home	Yes	Yes
External Temperature Sensors	YES (Included)	Yes Catalog note Smart Room Sensors with a range of up to 200 ft
Google Home	Yes	Yes
Home Assistant	Yes	Yes Catalog note Official Home Assistant Honeywell Total Connect Comfort integration, which covers the Wi-Fi thermostats on that account
Matter	No	No
SmartThings	Yes	Yes
Power
Battery Life	Not applicable / unspecified Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Battery Type	Not applicable / unspecified Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Wired	Yes Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Scheduling
Automatically	Yes Catalog note Automatically turns down your temperature when nobody is home. \| Learns your routine and recommends changes to your thermostat schedule for optimal energy savings. \| Automatically heats or cools your home when electricity is more affordable and cleaner.	Yes Catalog note Auto Home and Away scheduling with geofencing
Manually	Yes	Yes
Suggestions	No	No
Sensors
Ambient Light	No	No
Ambient Noise	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Atmospheric Pressure	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Co	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
CO₂	Yes	No
Humidity	Yes Manufacturer source A humidity sensor is included. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes
Nox	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Occupancy	Yes Manufacturer source Radar detects occupancy. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes
Pm01	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Pm03	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Pm1	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Pm10	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
PM2.5	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Proximity Motion	Yes	Yes Catalog note Smart Room Sensors detect which rooms are occupied
Radon	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded
Temperature	Yes Manufacturer source A temperature sensor is included. Ecobee Smart Thermostat Premium manufacturer product page → Source section Display, thermostat sensors, connectivity and box contents Model Ecobee Smart Thermostat Premium Region US manufacturer page Firmware Not specified by this source Checked 2026-10-04 Requires compatible 24 VAC HVAC equipment. Check the wiring and accessory limits; a Power Extender Kit may be needed. Document check only; not a hands-on test or verification of every regional or firmware variant.	Yes
TVOC	Yes	No
Uv	No Catalog note Additional catalog field from the air-quality-monitors listing of this model.	Not recorded

Know what’s behind the comparison.

The table matches specifications by section and field. It preserves notes, separates missing data from explicit “No” values, and keeps qualifications attached to their values. No overall winner is assigned from feature counts.

Read our comparison methodology