12+ models tested

Smart Thermostats

Save up to 23% on heating and cooling costs with a smart thermostat that learns your schedule and automates temperature control.

$180-$260

Typical annual savings

1-2 hours

DIY install time

23%

Average energy savings

Featured Guides

The complete guide to smart thermostats that work without rewiring. Perfect for older homes and DIY installation.

🏆 Best Overall

⭐ 4.6/5•$249

The ecobee Premium is the best smart thermostat for most people. It works without a C-wire, includes a room sensor, and ...

🧠 Smartest Learning

⭐ 4.5/5•$249

The Nest Learning Thermostat is the smartest option - it learns your habits and adjusts automatically. Best for Google H...

💰 Best Value

⭐ 4.5/5•$129

The budget Nest is the best value smart thermostat. It works without a C-wire in most cases and costs half the price of ...

🔌 Best No C-Wire

⭐ 4.5/5•$169

The ecobee3 Lite is the most reliable choice if you dont have a C-wire. The included Power Extender Kit makes installati...