Ecobee Smart Thermostat Essential vs Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat comparison

Updated July 2026

Data from Amazon and official Ecobee and Honeywell Home sites.

2026 verdict

In 2026, the recommendation leans toward Ecobee Smart Thermostat Essential over Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat, driven by warranty, connectivity, and integrations. The main reason it wins is warranty, connectivity, and integrations, and sensors and alerts strengthen that case. Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat remains a niche alternative if price, rating, and system health monitor matter more than the rest of the comparison. For most setups, Ecobee Smart Thermostat Essential is the smarter buy.

Winner

Ecobee

Ecobee Smart Thermostat Essential

$134.99

Buy on Amazon USA

Honeywell Home

Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat

29% OFF

$127.99

$179.99

Buy on Amazon USA

Feature	Ecobee Smart Thermostat Essential	Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat	Winner
Price	$134.99	$127.99	Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
Rating	4.2	4.3	Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
Warranty	3 years	1 year	Ecobee Smart Thermostat Essential
Connectivity	2.4 GHz WiFi, Bluetooth	2.4 GHz WiFi	Ecobee Smart Thermostat Essential
Integrations	Google Home, Alexa, Apple HomeKit, Home Assistant, External Temperature Sensors	Google Home, Alexa, Home Assistant	Ecobee Smart Thermostat Essential
Sensors	Proximity / Motion, Temperature, Humidity	Temperature, Humidity	Ecobee Smart Thermostat Essential
Alerts	Temperature Alerts, Intrude Alerts	Temperature Alerts	Ecobee Smart Thermostat Essential
System Health Monitor	NO	YES	Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
Voice Control	NO	YES	Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat
Screen	YES	YES	Tie
Energy Savings	YES	YES	Tie
Speaker	NO	NO	Tie

Winner

Ecobee

Ecobee Smart Thermostat Essential

$134.99

Buy on Amazon USA

+ Warranty: 3 years
+ Connectivity: 2.4 GHz WiFi, Bluetooth
+ Integrations: Google Home, Alexa, Apple HomeKit, Home Assistant, External Temperature Sensors
- Price: $134.99 vs $127.99
- Rating: 4.2 vs 4.3

Honeywell Home

Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat

29% OFF

$127.99

$179.99

Buy on Amazon USA

+ Price: $127.99
+ Rating: 4.3
+ System Health Monitor: YES
- Warranty: 1 year vs 3 years
- Connectivity: 2.4 GHz WiFi vs 2.4 GHz WiFi, Bluetooth

Frequently Asked Questions

Which is better overall: Ecobee Smart Thermostat Essential or Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat?

Ecobee Smart Thermostat Essential has the stronger overall profile in this comparison, especially for warranty, connectivity, and integrations.

What is the biggest difference between Ecobee Smart Thermostat Essential and Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat?

Price is one of the clearest differences: Ecobee Smart Thermostat Essential lists $134.99, while Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat lists $127.99.

Which one looks better on price?

Ecobee Smart Thermostat Essential is listed at $134.99, while Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat is listed at $127.99. Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat (better spec).

Who should buy Ecobee Smart Thermostat Essential?

Choose Ecobee Smart Thermostat Essential if your priority is warranty and connectivity and that matters more than price.

Who should buy Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat?

Choose Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat if your priority is price and rating and that matters more than warranty.

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