Nest Thermostat vs Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat

The Nest Thermostat is the stronger overall pick, winning on connectivity with 5GHz Wi-Fi and Bluetooth, on integrations with Apple HomeKit, Samsung SmartThings and IFTTT, and on sensors with occupancy, proximity and ambient light detection. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat wins on its system health monitor and voice control support.

Sensor and platform breadth. The Nest Thermostat adds occupancy, proximity and ambient light sensing plus Apple HomeKit, SmartThings and IFTTT support that the Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat does not offer, while the Honeywell counters with a system health monitor for HVAC maintenance reminders.

Yes, the Nest Thermostat supports Apple HomeKit, along with Google Home, Alexa, Samsung SmartThings and IFTTT. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat works only with Google Home and Alexa. Neither model supports Matter.

The Nest Thermostat, which adds occupancy, proximity and ambient light sensing on top of the temperature and humidity sensing both models share. The Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is limited to temperature and humidity.

Buyers who want HVAC system health monitoring with filter and maintenance reminders and are already settled into an Alexa or Google Home routine, without needing 5GHz Wi-Fi, Bluetooth or Apple HomeKit.

Buyers who want the widest platform support, including Apple HomeKit and Samsung SmartThings, plus extra sensing for occupancy and ambient light, and who are comfortable managing the thermostat through the Google Home app.