Google Nest Nest Learning Thermostat (4th gen)

Matter is not the only reason to buy it

Nest Learning Thermostat (4th gen) is the premium Google thermostat with Matter over Wi-Fi. The direct Matter path matters because it can put basic thermostat control into Apple Home, Alexa, SmartThings, Home Assistant, and Google Home without a bridge. But the reason to pay more is still the Nest hardware and Google Home feature set.

The 4th-gen model adds the larger display, Dynamic Farsight, a rotating dial, broader HVAC support than the 2020 Nest Thermostat, and an included Nest Temperature Sensor. Those are the reasons it belongs in a more serious thermostat decision instead of a simple Matter checkbox.

Setup path

Use Google Home for setup. That is where the thermostat, updates, schedules, temperature sensor, and Nest-specific behavior live. After it is working there, share it through Matter when another ecosystem needs control.

The network path is Wi-Fi, not Thread. You do not need a Thread border router for the thermostat, and the thermostat does not improve a Thread mesh for locks or sensors.

Where it fits

This is the Google pick for a main HVAC system where comfort control and the wall hardware matter. The included temperature sensor can help if one room runs warmer or colder than the hallway where the thermostat is mounted.

It is less compelling for a small apartment, a spare room, or any setup where a basic temperature change from another app is the only goal. In that case, the 2020 Nest Thermostat is the cleaner comparison.

What to verify before buying

Check HVAC compatibility, accessory equipment, and regional availability. The 4th-gen model was launched for the U.S. and Canada, and the higher price only makes sense if your system and household will use the extra Nest features.

For Matter, test the controls you actually plan to use in the secondary app. Temperature and mode control are the baseline. Learning behavior, sensor scheduling, display choices, energy programs, and deeper system alerts should be treated as Google Home features unless your target ecosystem proves otherwise.