Best Smart Thermostats (2026): Google Nest Learning (4th

Our top picks for best smart thermostats, ranked by independent verdict scores from 4 tested products.

Google Nest Learning Thermostat (4th Gen)

9.2/10

4.6★ (12,400)

Auto-schedule learning, energy savings, remote app control, Soli sensor, works with most boilers. The learning thermostat.

9.1/10

4.5★ (34,200)

Learns your schedule. Auto-away saves energy when you leave. Reduces heating bills by up to 16%.

9.0/10

4.5★ (21,600)

Room sensors detect where you are. Alexa built-in. The Nest alternative for North American homes.

8.7/10

4.4★ (18,200)

The UK's most installed smart thermostat. Works with most UK boilers. Professional installation included.