Nest Learning Thermostat (4th gen) vs Sensi Smart thermostat

The Nest Learning Thermostat (4th gen) is the more capable pick, with automatic learning, more sensors, dual-band Wi-Fi, a bundled sensor, a System Health Monitor and Matter. The Sensi Smart thermostat wins on price and warranty length and adds Apple Home and voice control.

Learning and hardware versus value and voice. The Nest Learning Thermostat (4th gen) learns your schedule and adds occupancy and ambient-light sensing, a bundled sensor and Matter, while the Sensi Smart thermostat is cheaper and adds Apple Home and built-in voice control.

The Sensi Smart thermostat supports Apple Home, along with Google Home, Alexa and SmartThings. The Nest Learning Thermostat (4th gen) does not support Apple Home, but it does support Matter.

The Nest Learning Thermostat (4th gen) ships with a temperature sensor and trim plate. The Sensi Smart thermostat does not include or support external sensors, though it does add humidity sensing.

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

Value-focused buyers who want the cheaper, well-rated unit with a large display, Apple Home support and built-in voice control, and who do not need learning, a bundled sensor or Matter.