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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 11,660 ratings

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Black
ecobee3 Lite SmartThermostat
Thermostat + Smart Thermostat Voice Control

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
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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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

$149.00
Get it as soon as Monday, Apr 1
In Stock
Ships from and sold by Amazon.com.
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$86.44
Get it as soon as Monday, Apr 1
In Stock
Sold by Ucs Deals 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$149.00-5% $179.89
List:$189.99
-12% $219.99
List:$249.99
-9% $199.73
List:$220.00
-18% $73.99
List:$89.99
-12% $87.99
List:$99.99
Delivery
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Get it as soon as Monday, Apr 1
Customer Ratings
Alexa integration
4.2
4.2
4.1
4.6
4.2
3.5
Tech Support
3.9
3.7
3.8
5.0
3.3
3.0
Easy to install
4.4
4.1
4.2
4.2
4.1
Temperature Control
4.2
3.9
5.0
3.8
Smart Features
4.0
4.2
3.9
Sold By
Amazon.com
CT Imaging, LLC
Amazon.com
Refined Deals
ANR TECH
EXTEND LLC
control method
voice
application
application
application
application
application, touch
connectivity protocol
Wi-Fi
Wi-Fi
Wi-Fi
Wi-Fi
Wi-Fi
Wi-Fi
power source
AC/DC
Ac/dc
Battery or C-wire
Corded Electric
controller type
Amazon Alexa, Android, iOS, Vera, Google Assistant
Amazon Alexa, Android, Apple HomeKit, Google Assistant, iOS
Amazon Alexa, Android, Apple HomeKit, Google Assistant, iOS
Android, iOS
Hand Control, Amazon Alexa, Google Assistant, SmartThings
Amazon Alexa, Apple HomeKit, Google Assistant, iOS, Android
specification met
Energy Star
Energy Star
Energy Star
Energy Star
Energy Star
material
Plastic
Metal
Metal
Plastic

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
11,660
4.5 out of 5 stars
1,919
4.6 out of 5 stars
9,637
4.5 out of 5 stars
2,265
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

Important information

Bulb Voltage

24 volts

Customer reviews

4.5 out of 5 stars
4.5 out of 5
11,660 global ratings

Customers say

Customers like the ease of setup, adjustability, quality and ease of use of the HVAC control thermostat. For example, they mention the installation instructions booklet is refreshingly well written and illustrated, it has many options and is truly a smart thermostat. That said, some complain about the temperature and have mixed opinions on performance, and connectivity.

AI-generated from the text of customer reviews

858 customers mention741 positive117 negative

Customers find the setup of the HVAC control thermostat to be easy. They mention that the installation instructions booklet is refreshingly well written and illustrated. They also say that the app is easy to use and the product connects easily to WiFi. Customers also appreciate the seamless integration with Home Assistant and Samsung SmartThings.

"...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

"...Connects easy to wifi and the app is easy and great to use when your away from home or just don't want to get off the couch:)..." Read more

"...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!!..." Read more

448 customers mention366 positive82 negative

Customers like the adjustability of the thermostat. They say it has many options and is truly a smart thermostat. Some say it's a good thermostat that prefers to stay on all the time. However, most are happy with the simple, no-frills interface and the ability to create custom heating and cooling profiles to match their daily routine.

"...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

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

"...The device worked fine and I could control my apartment from distance which was very useful...." Read more

420 customers mention339 positive81 negative

Customers like the quality of the HVAC control thermostat. They mention it's a smart purchase, has a nice build quality, and is reliable. Some say that it'll save them hundreds of dollars through better management of their heating and cooling system.

"...Nice design and well made." 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

"...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

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

402 customers mention313 positive89 negative

Customers find the Ecobee3 Lite's intuitive interface easy to use. They also appreciate the programmability features and wireless sensors. Customers say the device is easy to control and program, and it handles nuances with ease. They say the apps installation guide is clear and easy to understand. Customers also say the product is highly configurable and has nice controls. Overall, they find the device more convenient than the old manual thermostat.

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

"...It is truly SMART.My only negative complaint is the look and color. I wish they had a white color option...." Read more

"...However, honestly the apps Instillation guide is so intuitive I’m sure that the extra step would have been easy enough...." 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

194 customers mention174 positive20 negative

Customers like the appearance of the thermostat. They mention it's sleek, modern, and adds a touch of elegance to their home. Some say the design is very well done and the black is clean looking. Overall, most are satisfied with the appearance and functionality of the product.

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

"...Nice design and well made." 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

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

760 customers mention505 positive255 negative

Customers are mixed about the performance of the HVAC control thermostat. Some mention that it works well, the app functions well, and plays well with their Smartthings Hub. However, others say that it really doesn't work well, fails after a while, and wouldn't even turn on.

"...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

"...Connects easy to wifi and the app is easy and great to use when your away from home or just don't want to get off the couch:)..." Read more

313 customers mention189 positive124 negative

Customers are mixed about the connectivity of the HVAC control thermostat. Some mention that it integrates well with their Alexa systems, SmartThings, and Apple HomeKit smart home ecosystems. It connects easily to WiFi, and the app is easy to use when you're away from home. However, others say that it sometimes fails to reconnect to the WiFi and starts dropping connections.

"...The compatibility with popular smart home platforms like Alexa, Google Assistant, and Apple HomeKit further solidifies the Ecobee3 Lite as a top-..." Read more

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

"...Connects easy to wifi and the app is easy and great to use when your away from home or just don't want to get off the couch:)..." Read more

"...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..." Read more

110 customers mention10 positive100 negative

Customers are dissatisfied with the temperature of the HVAC control thermostat. They mention that it doesn't keep the temperature at the set temperature, it would heat when trying to cool, and cool when tryingto heat. Some say that the thermostat is confusing and tends to over control the temperature. They also say that it blew hot air on the cool setting and raised the temperature in their home. Customers also mention that they have insulation problems and that both thermostats went dead when they lost power.

"...There was no cooling option at all, so it was stuck only in heat mode (not a good thing in the summer!)..." Read more

"...This morning we had a boiler issue and I noticed that the temps were going down despite what I had it set at...." Read more

"...periods where the temperature was up in the fifties but the heating wasn't working until the auxiliary was on...." Read more

"...Even with the fan running 24/7, it still always felt stuffy and a bit too warm, and my electricity bills were always a bit higher than I’d..." 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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Reviewed in the United States on February 3, 2024
Color: BlackStyle: ecobee3 Lite SmartThermostatPattern Name: Thermostat + Smart Thermostat Voice ControlVerified Purchase

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
Report
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