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

The Nest Learning Thermostat (4th gen) wins overall, offering a higher owner rating, a two-year warranty, self-learning scheduling, a system health monitor, a bundled remote sensor, richer sensing and broad platform support. The Amazon Smart Thermostat's advantage is its lower price.

Intelligence and monitoring. The Amazon Smart Thermostat is a basic Alexa-only unit, while the Nest Learning Thermostat (4th gen) learns your routine automatically, includes a system health monitor that flags HVAC issues, and works with Google Home, Alexa, SmartThings, IFTTT and Matter.

The Nest Learning Thermostat (4th gen) ships with a Nest temperature sensor to prioritize or balance rooms. The Amazon Smart Thermostat includes a trim plate but no remote sensor, relying on its single built-in temperature sensor.

Only the Nest Learning Thermostat (4th gen), which has a system health monitor that can catch many issues early and alert you if something needs attention. The Amazon Smart Thermostat has no such feature.

Buyers in an Alexa home who want the most affordable smart upgrade with basic scheduling, and who do not need learning behavior, a system health monitor, remote sensors or support for other ecosystems.

Anyone wanting a hands-off, self-learning thermostat with an animated color display, a bundled remote sensor, HVAC health monitoring and wide compatibility including Matter, and who is comfortable paying more for that feature set.