Thermostats · Head to head

Honeywell Home T9 Smart Thermostat vs Honeywell Home X8S Smart Thermostat

Full Smart Thermostats comparison in 2026

Updated August 2026
Data from Amazon and official Honeywell Home site.
2026 verdict
Honeywell Home X8S Smart Thermostat beats Honeywell Home T9 Smart Thermostat in 2026, with its clearest edge on connectivity and integrations. Its clearest strengths are connectivity and integrations, and it still looks stronger on its broader overall balance. Honeywell Home T9 Smart Thermostat can still be the right pick, but only if price and rating outweigh the wider strengths of Honeywell Home X8S Smart Thermostat. Overall, Honeywell Home X8S Smart Thermostat makes more sense for most people.
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FeatureHoneywell Home T9 Smart ThermostatHoneywell Home X8S Smart ThermostatWinner
Price$214.99$259.99Honeywell Home T9 Smart Thermostat
Rating4.34.2Honeywell Home T9 Smart Thermostat
Connectivity2.4 GHz WiFi2.4 GHz WiFi, 5 GHz WiFiHoneywell Home X8S Smart Thermostat
IntegrationsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, External Temperature SensorsGoogle Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter, External Temperature SensorsHoneywell Home X8S Smart Thermostat
Warranty2 years2 yearsTie
Included accessoriesTemperature SensorTemperature SensorTie
ScreenYESYESTie
SensorsProximity / Motion, Occupancy, Temperature, HumidityProximity / Motion, Occupancy, Temperature, HumidityTie
AlertsTemperature AlertsAir Quality AlertsTie
Energy SavingsYESYESTie
System Health MonitorYESYESTie
Voice ControlYESYESTie
Honeywell Home

Honeywell Home T9 Smart Thermostat

$214.99
Buy on Amazon USA

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  • + Price: $214.99
  • + Rating: 4.3
  • - Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, 5 GHz WiFi
  • - Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, External Temperature Sensors vs Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter, External Temperature Sensors

Frequently Asked Questions

Which is better overall: Honeywell Home T9 Smart Thermostat or Honeywell Home X8S Smart Thermostat?

Honeywell Home X8S Smart Thermostat has the stronger overall profile in this comparison, especially for connectivity and integrations.

What is the biggest difference between Honeywell Home T9 Smart Thermostat and Honeywell Home X8S Smart Thermostat?

Price is one of the clearest differences: Honeywell Home T9 Smart Thermostat lists $214.99, while Honeywell Home X8S Smart Thermostat lists $259.99.

Which one looks better on price?

Honeywell Home T9 Smart Thermostat is listed at $214.99, while Honeywell Home X8S Smart Thermostat is listed at $259.99. Honeywell Home T9 Smart Thermostat (better spec).

Who should buy Honeywell Home T9 Smart Thermostat?

Choose Honeywell Home T9 Smart Thermostat if your priority is price and rating and that matters more than connectivity.

Who should buy Honeywell Home X8S Smart Thermostat?

Choose Honeywell Home X8S Smart Thermostat if your priority is connectivity and integrations and that matters more than price.

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