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The new voice-enabled ecobee4

ecobee4 is more than a smart thermostat.

  • Room sensor to help manage hot and cold spots
  • Comes with built-in Amazon Alexa Voice Service
  • Ask it to order groceries, read the news, and more
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Provides All-Around Comfort

Be comfortable in the rooms that matter.

Most thermostats only read the temperature in one place (usually the hallway) which can make other rooms uncomfortable. ecobee4 comes with a room sensor to help manage hot and cold spots.

When you place sensors in your favorite rooms, ecobee4 can read the temperature and detect occupancy. That's how it ensures comfort in the rooms that matter

ecobee in a home office Sensor beams
ecobee on a bedside table Sensor beams
ecobee in kids room Sensor beams
Listens and Answers Back

Comes with Amazon Alexa Voice Service built inside.

With Amazon Alexa Voice Service built inside, ecobee4 can perform the many 'skills' that come with Alexa. All you have to do is ask, and watch the blue light pipe on top of the thermostat blink in response. For total hands-free control, it can even hear you from across the room.

ecobee in a kitchen
Lets You Focus

With Alexa, fulfill everyday tasks with a simple command.

Imagine you’re throwing a last-minute dinner party. Simply ask your ecobee4 to walk you through each step out loud – from finding the right recipes to the ideal music playlist.

Obsessively Engineered

Designed to be seen
and heard.

ecobee4 has embedded microphones with far-field voice recognition and a speaker engineered for clear voice and full sound. It’s the smart thermostat that looks at home on your wall – that you can hear and speak to from across the room.

Keeps up with you

Not at your thermostat? No problem.

  • Comfort on the go

    Adjust temperature and comfort settings easily from the ecobee mobile app on your Android and iOS devices, including Apple Watch.

  • Knows you have a life

    Vacationing and forgot to let your ecobee know? Make a vacation event using the ecobee mobile app. If something’s wrong with your equipment, we can send you service alerts and reminders.

  • Control the speaker and microphone

    Use the app to lower your volume, or enable Privacy Mode (microphone off) if you want to give Alexa a breather.

Saves you energy

Save an average of 23%* in heating and cooling costs each year.

Plus, we’re ENERGY STAR® certified, so you know it's good for you and the planet.

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Smarter Home

Engineered to belong in your home.

  • Easy set up

    Check your compatibility and install the ecobee yourself. We can connect you with certified pro installers in your area, too.

  • Built to last

    ecobee thermostats are hardwired, which means your thermostat isn’t relying on a battery or your HVAC equipment to charge itself.

Smart, really smart

You have better things to do than to teach your thermostat.

ecobee4 learns your home’s unique energy profile to transform thousands of data points into cost savings.


Ordinary thermostats read the temperature in only one room, but are supposed to deliver comfort in all rooms. ecobee4 room sensors deliver the right temperature in the rooms that matter most.

If your ecobee4 senses that you are home during your scheduled Away period, or away during your scheduled Home period, it will automatically override your schedule to maximize comfort and savings.

Control your comfort by averaging the temperature of the selected sensors that detect motion or all of the selected sensors in your home, regardless of motion.

As Seen On

Technical Specs



3.5” full-color LCD touch screen

320 x 480 pixel display

Product Dimensions


Length: 109 mm

Width: 109 mm

Depth: 26.1 mm

Trim Plate

Length: 158.59 mm

Width: 158.59 mm

Depth: 8.69 mm

Room Sensor

Length: 44 mm

With stand: 54 mm

Width: 44 mm

Depth: 20 mm

Power Extender Kit*

Length: 62.1 mm

Width: 60.1 mm

Depth: 21.4 mm

*Optional for installation

Thermostat sensors





Voice & audio

Built-in Alexa Voice Service

Built-in microphones

Built-in speaker

Far-field voice recognition

Sensory TrulyHandsfree Wake Word engine


Gas, oil, electric, dual fuel

Conventional (2H/2C)

Heat Pump (4H/2C)

Humidifier, Dehumidifier, Ventilator, HRV or ERV

Wire Terminals













Connectivity & Security

Wi-Fi, IEEE 802.11 b/g/n @ 2.4 GHz

Wi-Fi Protected Access (WPA/WPA2) and Wired Equivalent Privacy (WEP)

DHCP (dynamic) or static IP addressing

Transport Layer Security (TLS)



15+ MB/month (dependent on Alexa Voice Service usage)

Power Consumption

less than 3.5 VA

Works with

Apple HomeKit, Amazon Alexa, Samsung SmartThings, IFTTT and more.

Powering Methods

Wired 24 VAC through terminals C and Rc.

Power Extender Kit enables you to reliably power your thermostat without having to run a fifth wire.


Recycled packaging




ROHS compliant

Temperature Range

Desired Temperature: 44° to 92°F (7° to 33°C)

Display: 41° to 98°F (5° to 37°C)

Sensitivity: +/- 0.9°F (+/- 0.5°C)

Operating: 32° to 131°F (0° to 55°C)

Humidity Range

Display: 20% to 90% RH

Sensitivity: +/- 5% RH

Operating: 5% to 95% RH (non-condensing)


-31° to 113°F (-35° to 45°C)

5% to 95% RH (non condensing)


3-year warranty



In the Box

ecobee4 thermostat

ecobee4 mounting plate

Room sensor with detachable stand

Install guide

Wire labels

Voice card

Screws and drywall plugs

Optional for installation:

Power Extender Kit (PEK)

Trim plate

in the box

Customers love their ecobee. Let them tell you just how much.

The setup was simplistic (just like the ecobee3 setup) where everything was explained in detail and choices were clearly defined. Made for a flawless setup in my opinion.

David Innocenti

At first I thought I had to touch the mic on the screen, BUT then I realized I could say "Alexa", pause a sec and ask or direct many things...too cool!

Douglas Norway

I get all of the benefits of the Alexa service without having to install Echos all over my house…. It's like having invisible Echo Dots!

Ken Hutchinson

I was impressed with the overall design… The Alexa Voice Service in ecobee4 is an amazing feature. I absolutely love being able to play music, on request, on my thermostat.

Brett Wood

It's convenient to have Alexa built into the ecobee4 and it extends the range I can use Alexa

Bryan Medich

I love that ecobee decided to partner with Amazon to put Alexa in their device. I am a huge Amazon shopper so I am excited that I now have a​ way to control my smart devices using Alexa in my ecobee4​.

Justin Yackee

I think it is a great addition to an already great product. It fits right into the smart home I am working to build. It has great range so I don't have to have an Echo in every room...I like that I can also ask the for the weather as I am getting ready in the morning instead of opening an app or looking at the unit itself. Great time saver. Our kids have also enjoyed asking questions and learning new jokes. It's sold me on the usefulness and functionality of Alexa as well. I am now a fan of Alexa, and a bigger fan of ecobee.

Jordan Lundskog
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