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Honeywell Home T9 Smart Thermostat narrowly beats the Ecobee SmartThermostat Premium in the smart thermostats category, especially in value ($199 vs $249), scoring 34 vs 30. If you want the better overall smart thermostats, Honeywell Home T9 Smart Thermostat is the recommended choice.
Picking Honeywell Home T9 Smart Thermostat over Ecobee SmartThermostat Premium means trading these off.
Scores are relative within the smart thermostatscategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✗ Cons
✓ Pros
| Spec | Ecobee SmartThermostat Premium | Honeywell Home T9 Smart ThermostatW |
|---|---|---|
| Price | 249$ | 199$✓ |
| Display | 3.5"✓ | 3" |
| Display Type | Color Touchscreen | Color Touchscreen |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Weight | 250g | 250g |
| Dimensions | 108 x 108 x 29 mm | 100 x 100 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 Home T9 Smart Thermostat if…
Buy the Honeywell Home T9 Smart Thermostat if you want the best overall value in this comparison. It scores higher overall and is the recommended choice for most buyers.
Honeywell Home T9 Smart Thermostat narrowly beats the Ecobee SmartThermostat Premium in the smart thermostats category, especially in value ($199 vs $249), scoring 34 vs 30. If you want the better overall smart thermostats, Honeywell Home T9 Smart Thermostat is the recommended choice.
No, Honeywell Home T9 Smart Thermostat scores higher (69 vs 78).
Honeywell Home T9 Smart Thermostat is cheaper at $199 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 Home T9 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 has the larger display (3.5" vs 3").








Reviewed by VersusMatrix Editorial Team
Last updated: April 25, 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.
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