Ecobee SmartThermostat Premium vs Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat

Name: Ecobee SmartThermostat Premium
Brand: Ecobee
SKU: ecobee-smartthermostat-premium
Price: 249.00 USD
Availability: InStock

Looking for an honest Ecobee SmartThermostat Premium vs Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat comparison in 2026? We scored both smart thermostats on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat comes out ahead 30/100 to 49/100 — a 19-point gap. The widest gap is in design and build, where the Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat pulls noticeably ahead. On price the Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat undercuts the Ecobee SmartThermostat Premium by 289% ($63.99 vs $249), which materially changes the value calculus for budget-conscious buyers.

Ecobee

SmartThermostat Premium

30/100

$249

Comprar en Amazon →Comprar en eBay →

GANADOR

Honeywell

RTH9585WF1004 Wi-Fi Smart Thermostat

49/100

$64

Comprar en Amazon →Comprar en eBay →

AI Matrix

Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat clearly outperforms the Ecobee SmartThermostat Premium in the smart thermostats category, especially in value ($63.99 vs $249), scoring 49 vs 30. If you want the better overall smart thermostats, Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat is the recommended choice.

Reviewed by VersusMatrix Editorial Team|Our methodology

5 Reasons Why Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat Is Better

1.Larger screen: 7" vs 3.5"
2.Lighter: 200g vs 250g
3.Lower price: $63.99 vs $249
4.Higher design rating: 23 vs 0
5.Better value score: 91 vs 41

¿A qué renuncias?

Picking Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat over Ecobee SmartThermostat Premium means trading these off.

Renuncias a

Nada significativo — las especificaciones son prácticamente iguales

You gain

+$185 cheaper ($63.99 vs $249)
+50g lighter (200g vs 250g)
+Larger screen: 7" vs 3.5"

Comparación de Especificaciones

Desglose de Puntajes

Ecobee SmartThermostat PremiumHoneywell RTH9585WF1004 Wi-Fi Smart Thermostat

Smart35% weight

Empate

Price30% weight

Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat Ganador

Ecobee SmartThermostat Premium

✗ Cons

●Higher price: $249 vs $63.99
●Higher price relative to value

Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat

Ganador

✓ Pros

●Lower price: $63.99 vs $249
●Lighter build: 200g vs 250g
●Better design score

Comparación de Especificaciones

Spec	Ecobee SmartThermostat Premium	Honeywell RTH9585WF1004 Wi-Fi Smart ThermostatW
Price	249$	63.99$✓
Display	3.5"	7"✓
Display Type	Color Touchscreen	Color LCD touchscreen
Wi-Fi	Wi-Fi 5	Wi-Fi 802.11 b/g/n
Weight	250g	200g✓

Quién Debería Comprar

Buy Ecobee SmartThermostat Premium if…

The Ecobee SmartThermostat Premium is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.

Buy Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat if…

Buy the Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.

Ecobee SmartThermostat Premium vs Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat — FAQ

Ecobee SmartThermostat Premium vs Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat: which is better?

Is Ecobee SmartThermostat Premium better than Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat?

No, Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat scores higher (49 vs 30).

Which is cheaper, Ecobee SmartThermostat Premium or Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat?

Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat is cheaper at $63.99 vs $249 for the Ecobee SmartThermostat Premium.

Who should buy the Ecobee SmartThermostat Premium?

The Ecobee SmartThermostat Premium is worth considering if you prefer its specific design, ecosystem, or brand — though it scores lower overall in our comparison.

Who should buy the Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat?

Buy the Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.

Which has a bigger screen, Ecobee SmartThermostat Premium or Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat?

Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat has the larger display (7" vs 3.5").

Which is lighter, Ecobee SmartThermostat Premium or Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat?

Full Ecobee SmartThermostat Premium review →Full Honeywell RTH9585WF1004 Wi-Fi Smart Thermostat review →All Ecobee Smart Thermostats →All Honeywell Smart Thermostats →

Reviewed by VersusMatrix Editorial Team

Last updated: May 10, 2026

Editorial guidelines

Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.