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Top Rated

Ecobee Smart Thermostat Premium

4.5
843 ratings
Launch Year: 2022

Model: EB-STATE6-01

27% OFF
$204.97
$149.63
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Our review

Ecobee Smart Thermostat Premium Review: Air Quality Monitoring Built Into the Thermostat

CO2, TVOC, temperature, humidity and occupancy sensing on a 4 inch touchscreen, with alerts and filter reminders, and support for every major platform except Matter.

The verdict

Judged as an air quality monitor, the Ecobee Smart Thermostat Premium is the rare device that measures the air and can act on it, because the same unit controls the heating and ventilation. It tracks CO2 and TVOC alongside temperature, humidity and occupancy, raises alerts when air quality drops, and reminds you to change the air filter. It works with Google Home, Alexa, Apple HomeKit, SmartThings, Home Assistant and IFTTT, which is as broad as compatibility gets. What it does not do is particulates: there is no PM2.5, PM10, CO, NOx or radon sensing, so smoke, dust and pollen are outside its scope.

Best for
  • Whole-home ventilation control
  • CO2 and VOC tracking
  • Multi-platform smart homes
  • Replacing a thermostat and a monitor at once

Pros

  • CO2 and TVOC sensing built into the thermostat
  • Air quality alerts with improvement tips, plus air filter change reminders
  • Temperature and humidity sensing, with alerts for sudden temperature swings
  • Occupancy sensing
  • Works with Google Home, Alexa, Apple HomeKit, SmartThings, Home Assistant and IFTTT
  • 4 inch colour touchscreen at 540 x 540
  • Dual-band Wi-Fi (2.4 GHz and 5 GHz) plus Bluetooth 5.0
  • History records and automation support
  • Three year warranty

Cons

  • No particulate sensing at all: no PM2.5, PM10 or finer
  • No carbon monoxide, NOx or radon sensing
  • No humidity alerts, despite measuring humidity
  • No Matter support
  • Hardwired installation, with no battery option
  • Expensive if you only want an air quality monitor

Who is it for as an air quality monitor?

Most air quality monitors can only tell you the air is bad. This one is wired into the system that can fix it, which is the argument for buying a thermostat that measures air quality rather than a separate sensor on a shelf. It suits someone replacing a thermostat anyway who would otherwise buy a CO2 monitor as well, and it fits any ecosystem, with Google Home, Alexa, Apple HomeKit, SmartThings, Home Assistant and IFTTT all supported. The 4 inch colour touchscreen at 540 x 540 shows the readings on the wall, and both 2.4 GHz and 5 GHz Wi-Fi are supported, which is unusual in this category.

What it measures

The air quality side covers CO2 and TVOC. CO2 is the ventilation signal, the pollutant that climbs in closed rooms and is linked to poor sleep and trouble concentrating, and TVOC is the aggregate of volatile organic compounds coming off cleaners, aerosols, glue, new furniture and carpets. Temperature and humidity come with the thermostat function, and there is occupancy sensing too, which is what lets it distinguish an empty house from an occupied one. Air quality alerts warn when the air gets poor and the system offers suggestions for improving it, and air filter change reminders keep the HVAC side working properly. Temperature alerts flag sudden drops or spikes that could damage the home, which is the kind of warning that matters while you are away.

What to know before you buy

There is no particulate sensing of any kind: no PM0.1, PM0.3, PM1, PM2.5 or PM10, so wildfire smoke, cooking particles, dust and pollen are invisible to it. There is also no carbon monoxide, no NOx and no radon sensing, so it does not replace a CO alarm or a radon detector. Humidity is measured but cannot raise its own alert. Matter is not supported. It is a hardwired device, which means an installation job and, in older homes, potentially a C-wire or adapter, and it has no battery option. Physically it is an indoor wall unit at 103.89 mm square and 630 g.

Is it worth it as an air quality monitor?

On its own the price is high for a CO2 and TVOC monitor. The economics only work if you also want the thermostat, in which case the air quality sensing effectively arrives free with a device you were buying anyway, and it comes with a three year warranty, longer than most in either category. If particulates matter to you, plan on a second, dedicated monitor: this one covers the gases and comfort side well and the particle side not at all.

Frequently asked questions

What air quality does the Ecobee Premium actually measure?

CO2 and TVOC (total volatile organic compounds), alongside temperature, humidity and occupancy. It does not measure particulates, carbon monoxide, NOx or radon.

Does it warn me when the air is bad?

Yes. The built-in air quality monitor raises alerts when air quality is poor and suggests ways to improve it, and it also sends air filter change reminders.

Which smart home platforms does it work with?

Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant and IFTTT. Matter is not supported.

Can it detect smoke or wildfire particles?

No. There is no particulate sensor, so PM2.5 and PM10 pollution from smoke, cooking or dust is not measured.

Does it need to be wired in?

Yes. It is a hardwired thermostat with no battery option, so installation involves your HVAC wiring.

At a glance

Summary

Everything this air quality monitor supports, grouped by category.

Size & Materials
4.1 × 4.1 × 1 in (103.89 × 103.89 × 25.9 mm)1.4 lb (630 g)
Power
Wired
Connectivity
2.4 GHz WiFi5 GHz WiFiBluetooth
Display
LCDColor ScreenTouch Screen4"540 x 540 px
Integrations
Google HomeAlexaApple HomeKitSamsung SmartThingsHome Assistant
Sensors
TVOCCO2TemperatureHumidityOccupancy
Alerts
Temperature AlertsAir Quality Alerts
Features
History Records

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Company
Ecobee logo

Ecobee

4.4/ 5 avg ratingCanada flagHeadquartered in Canada

Ecobee is a Canadian company best known for its smart thermostats with built-in room sensors and voice control. Beyond thermostats, Ecobee makes smart cameras, sensors and a security service, all managed through one app. Ecobee thermostats support Alexa, Google Home, Apple HomeKit and Matter, and are popular for energy savings and comfort.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Weather Resistance

NO

Dimensions

4.1 × 4.1 × 1 in (103.89 × 103.89 × 25.9 mm)

Weight

1.4 lb (630 g)

Power
Wired

YES

Battery Type

-

Battery Life

-

Connectivity
2.4 GHz WiFi

YES

802.11 b/g/n

5 GHz WiFi

YES

802.11 a/n/ac

Ethernet

NO

Bluetooth

YES

Bluetooth 5.0

Z-Wave

NO

Zigbee

NO

Thread Protocol

NO

Other

NO

Display
Screen

YES

Screen Type

LCD

Color Screen

YES

Touch Screen

YES

Screen Size

4"

Screen Resolution

540 x 540 px

Integrations
Google Home

YES

Alexa

YES

Apple HomeKit

YES

Samsung SmartThings

YES

Home Assistant

YES

Matter

NO

Sensors
TVOC

YES

PM0.1

NO

PM0.3

NO

PM1

NO

PM2.5

NO

PM10

NO

CO

NO

CO2

YES

NOx

NO

Radon

NO

Temperature

YES

Humidity

YES

Atmospheric Pressure

NO

Ambient Light

NO

UV

NO

Occupancy

YES

Ambient Noise

NO

Alerts
Temperature Alerts

YES

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.

Humidity Alerts

NO

Air Quality Alerts

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.

Low Battery Alerts

-

Features
Automations

YES

History Records

YES

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Compare the Ecobee Smart Thermostat Premium with the other 29 Air Quality Monitors

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