Looking for an honest Ecobee SmartThermostat Premium vs Honeywell RTH6580WF 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 RTH6580WF comes out ahead 30/100 to 47/100 — a 17-point gap. On price the Honeywell RTH6580WF undercuts the Ecobee SmartThermostat Premium by 523% ($39.99 vs $249), which materially changes the value calculus for budget-conscious buyers.

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Honeywell RTH6580WF clearly outperforms the Ecobee SmartThermostat Premium in the smart thermostats category, especially in value ($39.99 vs $249), scoring 47 vs 30. If you want the better overall smart thermostats, Honeywell RTH6580WF is the recommended choice.
Picking Honeywell RTH6580WF over Ecobee SmartThermostat Premium means trading these off.
Nada significativo — as especificações são praticamente iguais
$249
Scores are relative within the smart thermostatscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✗ Cons
✓ Pros
| Spec | Ecobee SmartThermostat Premium | Honeywell RTH6580WFW |
|---|---|---|
| Price | 249$ | 39.99$✓ |
| Display | 3.5" | 3.5" |
| Display Type | Color Touchscreen | Color LCD touchscreen |
| Battery | — | 3000mAh |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 802.11 b/g/n |
| Weight | 250g | 200g✓ |
| Dimensions | 108 x 108 x 29 mm | 90 x 90 x 30 mm |
| Colors | Black, White | White |
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 RTH6580WF if…
Buy the Honeywell RTH6580WF if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Honeywell RTH6580WF clearly outperforms the Ecobee SmartThermostat Premium in the smart thermostats category, especially in value ($39.99 vs $249), scoring 47 vs 30. If you want the better overall smart thermostats, Honeywell RTH6580WF is the recommended choice.
No, Honeywell RTH6580WF scores higher (47 vs 30).
Honeywell RTH6580WF is cheaper at $39.99 vs $249 for 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.
Buy the Honeywell RTH6580WF if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Honeywell RTH6580WF is lighter at 200g vs 250g.
Reviewed by VersusMatrix Editorial Team
Last updated: May 10, 2026
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.