Nest Learning Thermostat vs Nest Learning Thermostat (4th gen)

The Nest Learning Thermostat (4th gen) is the better pick, arriving at a lower price with an included temperature sensor and a System Health Monitor. The Nest Learning Thermostat keeps the same core learning schedule and a wider set of metal finishes.

The Nest Learning Thermostat (4th gen) adds a bundled temperature sensor, a System Health Monitor and a larger 2.7-inch animated display, while the original Nest Learning Thermostat sold external sensors separately and used a smaller 2-inch screen.

Yes. The Nest Learning Thermostat (4th gen) includes a temperature sensor for room balancing in the box, whereas the older Nest Learning Thermostat supports external sensors but does not include one.

Yes. Both the Nest Learning Thermostat and the Nest Learning Thermostat (4th gen) build a schedule automatically by learning your routine and support the Matter standard, along with Google Home, Alexa and SmartThings.

Buyers who want the newer, cheaper unit with a bigger animated display, an included temperature sensor and HVAC health monitoring, all in the Google ecosystem.

Buyers who find the original at a lower price or prefer its broader lineup of classic metal finishes, and who do not need the 4th gen's bundled sensor or System Health Monitor.