Also sold in packs
- Pack of 2$359.98$179.99 per unitBuy
Updated November 2026
Data from the official Honeywell Home and Meross sites.
2026 verdict
Meross MTS300 Smart Thermostat beats Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat in 2026, with its clearest edge on warranty, included accessories, and integrations.
Its biggest wins come from warranty, included accessories, and integrations, and local control adds more confidence to the verdict. Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is the better fit only for buyers who prioritize rating and alerts above everything else here. That is enough to make Meross MTS300 Smart Thermostat the better pick for most buyers.
Connectivity
- Wi-Fi 2.4 GHz
vs
Winner
Connectivity
- Wi-Fi 2.4 GHz
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| Feature | Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat | Meross MTS300 Smart Thermostat | Winner |
|---|---|---|---|
| Rating | 4.3 | 3.8 | Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat |
| Warranty | 1 year | 3 years | Meross MTS300 Smart Thermostat |
| Included accessories | None | Trim Plate | Meross MTS300 Smart Thermostat |
| Integrations | Google Home, Alexa, Samsung SmartThings, Home Assistant | Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter, External Temperature Sensors | Meross MTS300 Smart Thermostat |
| Alerts | Temperature Alerts | None | Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat |
| Local Control | NO | YES | Meross MTS300 Smart Thermostat |
| Power | None | C-Wire Required | Tie |
| Connectivity | 2.4 GHz WiFi | 2.4 GHz WiFi | Tie |
| Screen | YES | YES | Tie |
| Sensors | Temperature, Humidity | Temperature, Humidity | Tie |
| Energy Savings | YES | YES | Tie |
| System Health Monitor | YES | YES | Tie |
- + Rating: 4.3
- + Alerts: Temperature Alerts
- - Warranty: 1 year vs 3 years
- - Included accessories: None vs Trim Plate
Winner
$58.99
- + Warranty: 3 years
- + Included accessories: Trim Plate
- + Integrations: Google Home, Alexa, Apple HomeKit, Samsung SmartThings, Home Assistant, Matter, External Temperature Sensors
- - Rating: 3.8 vs 4.3
- - Alerts: None vs Temperature Alerts
Frequently Asked Questions
Which is better overall: Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat or Meross MTS300 Smart Thermostat?
Meross MTS300 Smart Thermostat has the stronger overall profile in this comparison, especially for warranty, included accessories, and integrations.
What is the biggest difference between Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat and Meross MTS300 Smart Thermostat?
Rating is one of the clearest differences: Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat lists 4.3, while Meross MTS300 Smart Thermostat lists 3.8.
Who should buy Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat?
Choose Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat if your priority is rating and alerts and that matters more than warranty.
Who should buy Meross MTS300 Smart Thermostat?
Choose Meross MTS300 Smart Thermostat if your priority is warranty and included accessories and that matters more than rating.
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