Nest Learning Thermostat (4th gen) vs Sensi Touch 2 smart thermostat

The Nest Learning Thermostat (4th gen) wins overall, with a higher owner rating, automatic learning, more sensors, a bundled sensor, a System Health Monitor and Matter. The Sensi Touch 2 smart thermostat counters with a lower price, a three-year warranty, a touchscreen and voice control.

Learning and hardware versus touchscreen and value. The Nest Learning Thermostat (4th gen) learns your schedule and adds a bundled sensor, a System Health Monitor and Matter, while the Sensi Touch 2 smart thermostat is a cheaper 4.3-inch touchscreen with voice control.

Yes. Both the Nest Learning Thermostat (4th gen) and the Sensi Touch 2 smart thermostat support external temperature sensors, but the Nest includes one in the box while the Sensi's is a separate add-on.

The Sensi Touch 2 smart thermostat, with a 4.3-inch color touchscreen. The Nest Learning Thermostat (4th gen) uses a bright non-touch animated display operated by its rotating ring.

Buyers who want automatic learning, a bundled sensor, HVAC health monitoring, occupancy and ambient-light sensing, dual-band Wi-Fi and Matter, and who are in the Google ecosystem.

Value-focused buyers who want a well-reviewed 4.3-inch touchscreen with voice control, dual-band Wi-Fi, add-on sensor support and a three-year warranty, and who do not need automatic learning or Matter.