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Google Nest Learning Thermostat vs Honeywell Home T5 Smart Thermostat

Full Smart Thermostats comparison in 2026

Updated November 2026
Data from the official Google and Honeywell Home sites.
2026 verdict
Nest Learning Thermostat wins this comparison because it programs itself, building a heating and cooling schedule from your routine instead of asking you to fill in a 7-day grid, and it backs that with occupancy, humidity and ambient light sensing, support for remote temperature sensors, dual-band Wi-Fi with Bluetooth, Google Home, Alexa, SmartThings and IFTTT, a high-resolution colour display showing time and weather, several metal finishes and an included trim plate. Honeywell Home T5 Smart Thermostat is the cheaper, simpler answer: 7-day scheduling with geofenced Auto Home and Away, Alexa, Google Assistant and Apple HomeKit, on-device voice control, monthly energy reports, a system health monitor with filter reminders, a large 4.95 inch high-contrast touchscreen and a 2 year warranty, the same as the Nest. It has no room sensor support, no humidity sensing and no learning. Buy Honeywell Home T5 Smart Thermostat for a budget upgrade in an evenly heated house; buy Nest Learning Thermostat if you want it to work the schedule out for you.
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FeatureGoogle Nest Learning ThermostatHoneywell Home T5 Smart ThermostatWinner
Rating4.44.2Google Nest Learning Thermostat
Included accessoriesTrim PlateNoneGoogle Nest Learning Thermostat
Connectivity2.4 GHz WiFi, 5 GHz WiFi, Bluetooth2.4 GHz WiFiGoogle Nest Learning Thermostat
SensorsProximity / Motion, Occupancy, Temperature, Humidity, Ambient LightTemperatureGoogle Nest Learning Thermostat
System Health MonitorNOYESHoneywell Home T5 Smart Thermostat
Local ControlNOYESHoneywell Home T5 Smart Thermostat
Warranty2 years2 yearsTie
IntegrationsGoogle Home, Alexa, Samsung SmartThings, Home Assistant, External Temperature SensorsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home AssistantTie
ScreenYESYESTie
AlertsTemperature AlertsTemperature AlertsTie
Energy SavingsYESYESTie
Voice ControlYESYESTie

Frequently Asked Questions

Which is better overall, the Nest Learning Thermostat or the Honeywell Home T5 Smart Thermostat?

Nest Learning Thermostat, thanks to its self-learning schedule, occupancy and humidity sensing, remote sensor support and dual-band Wi-Fi. Honeywell Home T5 Smart Thermostat wins on price and its system health monitor with filter reminders.

What does the learning behaviour actually do?

Nest Learning Thermostat watches how you adjust the temperature and builds its own schedule around your routine, then uses occupancy and geofencing to drop it when the house empties. Honeywell Home T5 Smart Thermostat holds a 7-day schedule you define, with geofenced Auto Home and Away, but it never learns.

Which supports Apple HomeKit?

Honeywell Home T5 Smart Thermostat does, alongside Alexa and Google Assistant. Nest Learning Thermostat has no Apple HomeKit support at all, covering Google Home, Alexa, SmartThings, IFTTT and Matter, with only partial Home Assistant integration.

Can either balance uneven rooms?

Nest Learning Thermostat supports remote temperature sensors, selected by time of day, so it can favour a bedroom at night. Honeywell Home T5 Smart Thermostat supports no external sensors, so it measures only where it is mounted.

How do the displays differ?

Nest Learning Thermostat uses a 2 inch high-resolution colour LCD at 480 x 480 controlled by a dial, showing temperature, time and weather. Honeywell Home T5 Smart Thermostat has a much larger 4.95 inch monochrome touchscreen showing temperature and time, without weather.

Who should buy the Honeywell Home T5 Smart Thermostat?

Buyers who want Apple HomeKit support, a big readable touchscreen and HVAC maintenance reminders at a lower price, and who are happy setting their own schedule. If you would rather the thermostat learn your habits and use room sensors, Nest Learning Thermostat is the better fit.

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