Honeywell Home 7-Day Programmable (reliable, no Wi-Fi needed). 1. Choose Your Type Smart Thermostats Connect to Wi-Fi. Control via smartphone apps.
Before buying, remove your current thermostat and look at the wires.
Most smart thermostats require a blue "C" wire to provide constant power.
Upgrading your thermostat is one of the most effective ways to lower energy bills and improve home comfort. Quick Summary: Which One Should You Buy?