One of the smartest and most convenient updates you can make at home is to replace that old non-programmable thermostat with one of the best HomeKit thermostats. Already one of the cheapest HomeKit thermostats available, ecobee Lite SmartThermostat is even more affordable today thanks to a Prime Day offer that reduces by 15% the retail price. Now, for just $ 144, you can save upfront and even more in the long run, with potential savings on your home's energy bill.

Ecobee Lite also works with remote RoomSensors, signed by ecobee, although one is not included in the box. With remote sensors - one of our choices for the best HomeKit temperature sensors, you can adapt the climate of your home based on the most critical rooms, such as bedrooms, instead of the hallway.

The cheaper ecobee thermostat also doesn't have on-board microphones that allow Alexa hands-free directly on the device, like its more expensive brother. However, you can still use existing green appliances or the Mini HomePod to heat your home on demand. In addition, if you are concerned about having a microphone always on in your home, the lack of Alexa on board in ecobee Lite can be a positive thing.

With the savings you get with the Ecobee Lite SmartThermostat, you may be able to expand your smart home even further with the best Prime Day Apple TV deals, which include all the best-selling HomeKit smart home accessories.