The smart choice for a balance of comfort, value, and energy savings.
Due to high demand for ecobee3 lite, shipping for this device could take up to one week. We apologize for the inconvenience.
Overview:Designed for Smarter Savings and Control.
Equipped with the essential features to start saving you up to 23%* annually on heating and cooling. Connect to SmartSensor (sold separately) for better comfort in the rooms that matter most.
- ENERGY STAR® certified
- Save up to 23%* on annual energy costs
- Control from anywhere on iOS and Android
- Apple HomeKit + more integrations
- Compatible with SmartSensor
Works in harmony with leading smart home ecosystems including Apple HomeKit.
ecobee thermostats work seamlessly with Apple HomeKit on all iOS devices including Apple Watch, and leading smart home ecosystems including the Google Assistant.
If This Then That
Certified to meet the highest standards of home comfort and energy conservation.
Works with SmartSensor for enhanced comfort.
SmartSensor keeps you comfortable where you are, not just where your thermostat is. Simply place SmartSensor in the bedroom, office, or child’s room for total comfort and control.
- Occupancy detection manages temperature automatically.
- Helps balance your home’s temperature.
- Control straight from the app or your smart home assistant.
New feature: Pause when doors or windows open:Go ahead, leave a window open.
Get comfortable without wasting energy. If a window or door is left open for 5 minutes ecobee will automatically turn off your AC and notify you, helping reduce your energy bill and help the environment. Smart Security subscription required.
How it works:
eco+ makes saving energy automatic.
Unlock even more energy savings and enhanced comfort with eco+, our next-generation software that elevates the world’s most advanced smart thermostat.
- Reduces strain on the electricity grid.⁴
- Automatically heats or cools when electricity is cheaper and cleaner.⁴
- Adjusts for comfort in high and low humidity.
- Learns your routine and recommends changes to your thermostat schedule.¹
Features & Specs:Get comfortable with saving.
ecobee3 lite heats and cools more efficiently over time by factoring in weather patterns and HVAC system performance. Plus, monthly energy reports show how much you saved and how to save even more.
Gallery:Thoughtfully designed for everyday life.
The display lights up when you’re nearby so you can check the weather and the five‑day forecast.
Install with confidence on your own or with our help.
Everything you need to install your smart thermostat, besides basic tools, is in the box and installation should take about 45 minutes. If you need assistance, our helpful support team is always just a phone call away. Or hire a local professional to install it for you.
Hear what others have to say.
"The ecobee3 Lite is easily the most appealing basic 7-day programmable thermostat on the market, one I can comfortably recommend."
Free returns through Jan. 15
Valid on items purchased this holiday season (Nov. 17–Dec. 15).
Receive it in 1 to 3 business days.
Warranties without worry
ecobee devices are covered by a 3-year limited warranty.
Clarity when you need it
Our products are backed by our dedicated support team.
* Compared to a hold of 72°F/22°C.
1 Where applicable.
† Based on a study conducted by a third-party expert during summer 2020 across the US and Canada, in jurisdictions where time-of-use pricing is in effect, ecobee smart thermostat owners with the eco+ Time of Use feature enabled saved up to 23% on the HVAC portion of their electricity bill. Savings vary by season, climate zone, and rate structure.