ecobee3 Lite Smart Thermostat Review

Rajat Hardy
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It's been long overdue, but today we finally got around to publishing our expert review on the ecobee3 Lite Smart Thermostat.

Let’s see why it’s such a popular product.

Our rating: 8 / 10

Cost: $$$

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  • Monitor heating and cooling remotely
  • Set up heating and cooling schedules
  • Remote presence


  • Availability of humidity sensors
  • No sensors for carbon monoxide
  • Expandability

The ecobee3 is an easy to use solution to keeping your HVAC hacked up, installing smart thermostats or simply optimizing your energy usage. This is without a doubt the best Amazon Echo thermostat on the market. It works with both Amazon's current Echo and the upcoming Echo Plus, which lets you control your thermostat from across your home in even more locations.

Let's start with the easy stuff. This thermostat is rated for up to 85% efficiency and it's unbelievably easy to set up. Truly. You can do it yourself in just 30 minutes.

Next, it has a unique feature in that it is compatible with ecobee's SmartSensors, which tell the ecobee how many occupants are in a specific room, and adjust the temperature for perfect comfort. It can also work with SmartThings, Google Assistant, Apple HomeKit, Samsung SmartThings and IFTTT.

Then comes the fun stuff. The thermostat integrates with your Amazon Echo and Alexa will tell you your current room temp. You can ask Alexa what the weather is like outside, get an update on the forecast, set a scene to lower or raise the temperature automatically, or schedule weekend or vacation homesettings. In other words, you'll never want for anything again with Amazon Echo everywhere.

By far, another great feature here is the remote access via the Amazon Alexa app and the web that lets you adjust the temperature from anywhere in the world. If you're in another room, you could get your Alexa app on your phone or tablet and change the AC thermostat.

The ecobee3 lite also records data on how often you leave the house, so it can tell when the AC is on longer than expected and starts adjusting the temperature. This is an easy way to maximize your energy efficiency.

Topping it all off, this thermostat is extremely easy to install. In fact, a throwaway 40-year homeowner could likely install it himself in 30 minutes or less.

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Not what you’re looking for? Read our roundup review: The Best Home Automation Systems (2022 Reviews)