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ecobee3 Lite Smart Thermostat - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - DIY Install, Black

4.5 4.5 out of 5 stars 11,635 ratings

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Rebates starting at $30 available from energy providers for 20149. Terms apply. See rebates
Black
ecobee3 Lite SmartThermostat
Thermostat + Smart Thermostat Voice Control
This item is certified to work with Alexa
WORKS WITH ALEXA
Add voice control by combining with an Alexa device
  • This item
  • +
  • Required
  • =
  • “Alexa, increase the thermostat.”

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Purchase options and add-ons

Brand ecobee
Model Name ecobee3 lite
Product Dimensions 1"D x 4.05"W x 4.05"H
Controller Type Vera, Google Assistant, Amazon Alexa, iOS, Android
Special Feature Window Sensor, Door Sensor

About this item

  • Save up to 23% annually on heating and cooling costs (compared to a hold of 72°F)
  • Control from anywhere using your Android or iOS device
  • Add SmartSensor to manage hot or cold spots and deliver enhanced comfort to the rooms that matter most
  • Automatically pauses your heating or cooling when a door or window is left open (requires ecobee SmartSensor for doors and windows and a Smart Security subscription)
  • ecobee was named an ENERGY STAR Partner of the Year award winner
  • Integrates seamlessly with your preferred smart home system. Connectivity - Wi-Fi, 802.11 b/g/n @ 2.4 GHz
  • Compatible with most 24VAC HVAC systems: furnaces, ACs (2H/2C), heat pumps (2H/2C + 2 stage AUX), boilers, PTACs, and fan coil units (3 fan speeds). Includes Power Extender Kit for C-Wire-less homes, ensuring easy installation. DHCP (dynamic) or static IP addressing 168 bit SSL encryption
See more product details

Customer ratings by feature

Easy to install
4.4 4.4
Temperature Control
4.2 4.2
Alexa integration
4.2 4.2
Motion detection
4.1 4.1

Frequently bought together

$147.99
Get it as soon as Sunday, Mar 17
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Sold by Think BiG and ships from Amazon Fulfillment.
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This Item
ecobee3 Lite Smart Thermostat - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - DIY Install, Black
ecobee 3 Lite Smart Thermostat - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - DIY Install, Black
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Price$147.99-18% $81.95
List:$99.99
-16% $209.00
List:$249.00
-15% $177.60
List:$209.99
$229.88-19% $72.99
List:$89.99
Delivery
Get it as soon as Sunday, Mar 17
Get it as soon as Sunday, Mar 17
Get it as soon as Sunday, Mar 17
Get it Mar 20 - 27
Get it as soon as Sunday, Mar 17
Customer Ratings
Easy to install
4.4
4.1
4.3
4.5
4.2
Temperature Control
4.2
3.8
4.0
4.7
5.0
Alexa integration
4.2
3.5
3.9
4.6
4.2
Tech Support
3.9
3.0
3.4
5.0
3.3
Smart Features
4.0
3.8
3.0
Sold By
Think BiG
Blend Trend
SquarElectronix
Amazon.com
MINHA-NY
Amazon.com
control method
voice
application, touch
voice
voice
application
application
connectivity protocol
Wi-Fi
Wi-Fi
Bluetooth, Wi-Fi
Wi-Fi
Wi-Fi
Wi-Fi
power source
AC/DC
Corded Electric
Battery Powered
Common wire
Ac/dc
Battery or C-wire
controller type
Amazon Alexa, Android, iOS, Vera, Google Assistant
Amazon Alexa, Apple HomeKit, Google Assistant, iOS, Android
Amazon Alexa, Google Assistant, nest
Amazon Alexa, Google Assistant, SmartThings, Hand Control
Android, iOS
Hand Control, Amazon Alexa, Google Assistant, SmartThings
specification met
Energy Star
ENERGY STAR Certified and UL Listed
Energy Star
Energy Star
Energy Star
material
Plastic
Plastic
Metal

From the manufacturer

ecobee3 lite savings
ecobee3 lite savings

Compare ecobee's Product Line Up

e3

ecobee3 Lite

225

Smart Thermostat Enhanced

225

SmartThermostat with VC

225

Smart Thermostat Premium

Customer Reviews
4.5 out of 5 stars
11,635
4.5 out of 5 stars
1,888
4.6 out of 5 stars
9,638
4.5 out of 5 stars
2,227
Annual savings
Up to 23% Up to 26% Up to 26% Up to 26%
Energy Saving through eco+
Yes Yes Yes Yes
iOS & Android and Apple Watch
Yes Yes Yes Yes
Built-in Occupancy detection
No Yes Yes Yes
Installs in 45 minutes or less
Yes Yes Yes Yes
HVAC Accessory Suppor
One 1-wire acc. One 1-wire acc. One 1-wire acc. Two 1-wire acc/One 2-wire acc
Siri & Alexa Built-In
No No Yes Yes
Spotify Connect/BT Streaming
No No Yes Yes
SmartSensor included
No No Yes Yes
Indoor Air Quality Monitor
No No No Yes
Real-time weather monitoring
Yes Yes Yes Yes
Backed for 3 Years
Yes Yes Yes Yes

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here. [PDF ]

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ecobee3 Lite Smart Thermostat - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - DIY Install, Black


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Product Description

Sleek design and elevated comfort meet impactful energy savings. Save up to 23% annually on heating and cooling costs with ecobee3 lite, the smart thermostat that helps you live smarter and save more. Get a new handle on control and convenience. Manage your comfort from anywhere with the ecobee app on your iOS or Android mobile device. Compared to a hold of 72°F. Occupancy detection manages temperature automatically.

Product guides and documents

Top Brand: ecobee

Highly Rated
4.5/5 star rating from 50K+ customer ratings
Trending
10K+ orders for this brand in past 3 months
Low Returns
Customers usually keep items from this brand

Important information

Bulb Voltage

24 volts

To report an issue with this product or seller, click here.

Customer reviews

4.5 out of 5 stars
4.5 out of 5
11,635 global ratings

Customers say

Customers like the ease of use, performance, and ease of installation of the hvac control thermostat. They mention that the app is easy to use, the user interface is laid out well, and the performance is reliable. Customers also like the appearance, and alexa compatibility. However, some customers are mixed on temperature control, value, and connectivity.

AI-generated from the text of customer reviews

889 customers mention631 positive258 negative

Customers are generally satisfied with the performance of the hvac control thermostat. They mention that it works well, is reliable, and is highly configurable. They also mention that the app is easy to use and is great to use when they are away from home. Overall, most are happy with their purchase and recommend it to others.

"...It not only delivers exceptional performance in terms of temperature control and energy efficiency but also elevates your smart home experience to..." Read more

"...Installation was a breeze and the app functions well. End user settings are ADJUSTABLE for your specific home/system requirements...." Read more

"...It wouldn't even turn on either via the C-wire or external power, so you can imagine my surprise and how unhappy I was...." Read more

"...The app never has issues either. Temperature is always right on point. When the temp goes down it then kicks back on...." Read more

885 customers mention754 positive131 negative

Customers find the installation process of the HVAC control thermostat to be easy. They mention the instructions are easy to follow, and the website has videos to walk you through the installation. The product is easy to use and integrates seamlessly with Home Assistant and Samsung SmartThings. The app is easy and reliable.

"...With its seamless integration with Home Assistant and Samsung SmartThings, this thermostat offers unparalleled convenience and control over your home..." Read more

"...Installation was a breeze and the app functions well. End user settings are ADJUSTABLE for your specific home/system requirements...." Read more

"...schedule on the app (you can do it on the thermostat as well) and it was easy. You can also "hold" a specific temp and override the schedule...." Read more

"Pricey toy, but nice build quality and easy to install. iPhone app works well, and it’s playing nicely with my 22-year old forced air furnace and AC...." Read more

197 customers mention158 positive39 negative

Customers find the app easy to use. They say the interface is nice and the app works well to control the unit. They also say the software is handy and that it can tell it which sensors to use at. Customers also appreciate the online support with the install and the voice commands using Alexa.

"...The intuitive interface allows you to create custom heating and cooling profiles to match your daily routine, ensuring optimal comfort while saving..." Read more

"Pricey toy, but nice build quality and easy to install. iPhone app works well, and it’s playing nicely with my 22-year old forced air furnace and AC...." Read more

"...as you can stand the extra expense, you get the advantage of fairly decent software and the surprisingly rare advantage of sensors that just work..." Read more

"...The ecobee app is very user-friendly and easy to use as well. Setting up my thermostat through the ecobee app was super easy and quick...." Read more

195 customers mention182 positive13 negative

Customers like the appearance of the hvac control thermostat. They mention that it has a nice look, is understated, and modern.

"...Plus, the thermostat's sleek and modern design adds a touch of elegance to any living space...." Read more

"...had it in a white face instead of just black, but at least the black is clean looking...." Read more

"...The product itself looks very elegant and doesn’t look like your typical hospitals style look. This looks futuristic and modern...." Read more

"...I liked the device at first, it looked sturdy and well designed, though it doesn't look as neat as the pictures where you can't tell the touchscreen..." Read more

152 customers mention125 positive27 negative

Customers like the Alexa compatibility of the hvac control thermostat. They mention that it integrates well with Alexa and Apple Home Kit. Customers also appreciate the ease of use and voice commands using Alexa. The product is compatible with the Apple Home app and SmartThings devices, allowing for a cohesive and synchronized smart home. Wi-fi joining and remote access work great, and it's easy to use via smart phone. However, HomeKit support is nice but flaky.

"...It seamlessly works with other SmartThings devices, allowing for a cohesive and synchronized smart home experience...." Read more

"...2. The Alexa integration is good (can get the current room temperature or adjust the thermostat).3...." Read more

"...We love this one! We can control it easily with Alexa, for instance we love sitting on the couch and saying “Alexa, turn the heat up a degree” if it..." Read more

"...They were easy to contact, super nice and quickly provided the help that I needed." Read more

554 customers mention368 positive186 negative

Customers are mixed about the temperature control of the hvac control thermostat. Some mention that they were able to easily adjust the temps to what the grandkids wanted, and now that they can use their phone and setting a schedule to regulate the temperature. However, others say that it's a bit of work to schedule multiple temperatures, there are no totals for usage, no temperature averages, or no total for how long the sensor has been on. They also say that the sensor also doesn't detect the change in temperature correctly, and that the swing temperature is non-adjustable.

"...The intuitive interface allows you to create custom heating and cooling profiles to match your daily routine, ensuring optimal comfort while saving..." Read more

"...Installation was a breeze and the app functions well. End user settings are ADJUSTABLE for your specific home/system requirements...." Read more

"...It's probably a bit more complex to set up scheduling than it is on simpler thermostats, but overall it isn't too bad...." Read more

"...The app never has issues either. Temperature is always right on point. When the temp goes down it then kicks back on...." Read more

237 customers mention144 positive93 negative

Customers are mixed about the value of the hvac control thermostat. Some mention that it's a smart purchase that saves them money, while others say that it is a total scam and overpriced.

"...Pros:Excellent product, easily affordable. Smart purchase. I did many reviews of many products and kept coming back to ecobee...." Read more

"Pricey toy, but nice build quality and easy to install. iPhone app works well, and it’s playing nicely with my 22-year old forced air furnace and AC...." Read more

"...Overall I am pleased with the capabilities for the price. The Ecobee3 Lite is designed as a budget entry into the smart thermostat space...." Read more

"Easy installation and works better then anticipated. Great price" Read more

135 customers mention43 positive92 negative

Customers are mixed about the connectivity of the product. Some mention that it connects easily to WiFi, and the app is easy and great to use when your away from home. However, others say that it stopped connecting to the internet within one week of service, and synchronously connects and disconnects from WiFi randomly.

"This device is really bad for WIFI connectivity. Just replaced my previous Ecobee 3 that failed with an Ecobee 3 Lite...." Read more

"...The first time I spent the whole call on a line with TERRIBLE connection, barely able to understand the representative because the line kept..." Read more

"...It's great that it uses the cloud for maximum connectivity, but there's no reason it couldn't run a local server..." Read more

"...The other thing is that one of my units seems to intermittently disconnect from the internet from time to time...." Read more

Easiest App for Install
5 Stars
Easiest App for Install
I have never installed something like a thermostat before. I have let this product sit in my cart for the last couple of months while I debated on if I was qualified enough for the daunting task of install. I wish I would’ve just purchased this a LONG time ago. And here is why….THE APP NOT ONLY TELLS YOU WHAT TO DO STEP BY STEP BUT IS INTERACTIVE!! I have NEVER had a product with such a user friendly (such an under rated term here) interface that tells you what to do BASED ON YOUR WIRING!!That’s right. You remove your old thermostat and tell the app which wires you see and it tells you what you need to do based on your specific situation. I will say I was very lucky and had the common wire and did NOT have to install the adaptor to my HVAC system. However, honestly the apps Instillation guide is so intuitive I’m sure that the extra step would have been easy enough. I know it may seem like I am rambling a bit. In this part of the review however, I want everyone to understand that the biggest reason for my hesitation was not the price of the unit but the installation process. I did not want to have to pay an additional fee for someone else to install. If I could possibly do it myself once I receive the product I had it installed within 15 minutes.The Ecobee Smart Thermostat is in itself, a wonderful and intuitive product. The product itself looks very elegant and doesn’t look like your typical hospitals style look. This looks futuristic and modern. I absolutely love how intuitive the sensor is like when you walk by the screen changing to show you a little bit more information. The software seems to know how to show you the right information to. When I want to look at the weather, it gives me just a glance at what is going on outside, which is wonderful and then I can expand it more to look into the future if I choose.The ecobee app is very user-friendly and easy to use as well. Setting up my thermostat through the ecobee app was super easy and quick.PRO TIP: Once the thermostat is installed, you can access the Apple QR code to connect your thermostat to your HomeKit ecosystem. The QR code is not the QR codes on the actual product cards inside the box.I really love the fact that this thermostat helps save on your heating bill by maximizing the heating and cooling of your HVAC system. But I was really impressed when during the install process, the software prompted me to enter my ZIP Code to show me who my local energy supplier was and allowed me to Request a rate decrease with the new install of the smart thermostat.I have not purchased any of the sensors yet, so I cannot contest to that ability of the software. However, I will be purchasing them in the future and will update my review accordingly.
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Top reviews from the United States

Reviewed in the United States on July 21, 2023
Color: BlackStyle: ecobee3 Lite SmartThermostatPattern Name: Thermostat + Smart Thermostat Voice ControlVerified Purchase
12 people found this helpful
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Reviewed in the United States on August 7, 2023
Color: BlackStyle: ecobee3 Lite SmartThermostatPattern Name: Thermostat + Smart Thermostat Voice ControlVerified Purchase
18 people found this helpful
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Top reviews from other countries

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Gustavo Fernandez
5.0 out of 5 stars Gran producto... muy facil de operar.
Reviewed in Mexico on December 3, 2022
Color: BlackStyle: ecobee3 Lite SmartThermostatPattern Name: Thermostat + Smart Thermostat Voice ControlVerified Purchase
Leeroy
5.0 out of 5 stars Excellent add on to ‘smart’ my gas heater.
Reviewed in Australia on October 3, 2022
Color: BlackStyle: ecobee3 Lite SmartThermostatPattern Name: Thermostat + Smart Thermostat Voice ControlVerified Purchase
2 people found this helpful
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Samir Chaman
5.0 out of 5 stars Facil de usar
Reviewed in Mexico on May 5, 2021
Color: BlackStyle: ecobee3 Lite SmartThermostatPattern Name: Thermostat + Smart Thermostat Voice ControlVerified Purchase
Automation Guy
5.0 out of 5 stars Very smart smart thermostat
Reviewed in Australia on May 13, 2022
Color: BlackStyle: ecobee3 Lite SmartThermostatPattern Name: Thermostat + Smart Thermostat Voice ControlVerified Purchase
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Automation Guy
5.0 out of 5 stars Very smart smart thermostat
Reviewed in Australia on May 13, 2022
After researching and reading many reviews about this thermostat, decided to purchase from US Amazon. Surprising it worked very well in Australia.

We had a very old analog thermostat (using mercury and springs) which replaced it with this Ecobee3 Lite. It made our air-conditioning system new and smart. The Apple HomeKit integration is much better than I expected. It has temperature sensor and humidity sensor. The smart schedule feature is very advanced and learning the current temperature to adjust the setting automatically.

The Ecobee app is great and it receives regular updates.
Love the bee flying animation on the screen at the beginning of the setup.

Maybe it is a bug, but during the setup, when choosing Celsius as the display unit, it still uses Fahrenheit during one of the following steps: setting the comfort temperatures. After that, everything is Celsius.
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Amazon Customer
5.0 out of 5 stars Muy bien producto
Reviewed in Mexico on March 22, 2020
Color: BlackStyle: ecobee3 Lite SmartThermostatPattern Name: Thermostat + Smart Thermostat Voice ControlVerified Purchase