ecobee3 lite

ecobee3 lite on a green background
1/4
$149.99

ecobee3 lite

The smart choice for a balance of comfort, value, and energy savings.

The smart choice for a balance of comfort, value, and energy savings.

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
smart thermostat home view

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.

  • Works with Amazon Alexa.

    Alexa

  • logo of Apple Home Kit

    Apple HomeKit

  • logo of Google Assistant

    Google Assistant

  • Works with Smart Things

    Samsung SmartThings

  • logo of If this then that

    If This Then That

ENERGY STAR® approved.

Certified to meet the highest standards of home comfort and energy conservation.

Energy star approved smart thermostat
Energy star approved smart thermostat
Two people leaving on a trip trusting their smart home security while away
ecobee3 lite value
SmartSensor Image

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.

Explore more
  • Occupancy detection manages temperature automatically.
  • Helps balance your home’s temperature.
  • Control straight from the app or your smart home assistant.

Automatically shut off your HVAC if a door or window is left open.

Save money and reduce energy waste, automatically. If an entryway is left open for 5 minutes, your HVAC system will turn off and notify you, helping reduce your energy bill and help the environment.

  • 2 ecobee SmartSensors on a door and window.

    1. SmartSensor for doors and windows ($79.99 per 2-pack)

    The sensor notices that your door or window is open. Learn more about ecobee's SmartSensors for doors & windows.

  • An ecobee SmartThermostat mounted on a wall.

    2. An ecobee smart thermostat
    ($169.99 - $249.99)

    Your thermostat automatically turns off your HVAC system to save money and energy. Learn more about thermostats.

  • A phone screen shows a notification from ecobee.

    3. Smart Security subscription

    You get a notification via ecobee Smart Security and the system starts again after the entryway is closed. Learn more about Smart Security.

SmartThermostat with voice control laying on lush, verdant backdrop symbolizing ecobee's commitment to sustainable living through technology.

eco+ makes saving energy automatic.

Our next-generation thermostat software unlocks additional energy savings on heating and cooling and enhanced comfort.

  • Reduces strain on the electricity grid.¹
  • Automatically heats or cools when electricity is cheaper and cleaner.¹
  • Adjusts for Comfort in high and low humidity.
  • Can pre-cool at times of the day when electricity is less expensive and cleaner.†
  • Learns your routine and recommends changes to your thermostat schedule. (With ecobee SmartSensor, sold separately.)
Learn more about eco+

Feel confident that your home is ready for ecobee3 lite smart thermostat.

Check compatibility

Features & Specs
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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.

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.

how to install smart thermostat

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."

CNET
cnet
Review Geek
cnet

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Purchase with peace of mind

Return it for free within 30 days for a full refund.

Free shipping

Receive it in 3 to 7 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.

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