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Best picks

Best Smart Thermostats for Furnaces

These picks come straight from the data: verified Amazon ratings, review counts, and prices we observed on recorded dates across 9 tracked products. No sponsored placements, no guesses. Prices last checked 2026-09-03.

As an Amazon Associate, this site earns from qualifying purchases. Product links are affiliate links, and prices and availability shown are accurate as of the date noted and can change. See our editorial policy for details.

Top rated

ecobee SmartSensor 2-Pack - Temperature & Occupancy Sensor

Highest Amazon rating among the products we track in this category.

Amazon rating: 4.6 across 8,743 ratings. Price observed: $79.99 on 2026-09-03.

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Most reviewed

Amazon Smart Thermostat, Save money and energy, Works with Alexa and Ring, C-wire required

Largest Amazon review count among the products we track in this category.

Amazon rating: 4.0 across 25,448 ratings. Price observed: $79.99 on 2026-09-03.

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Lowest observed price

Honeywell Home RCHTSENSOR-1PK, Smart Room Sensor works with T9/T10 WIFI Smart Thermostats

Lowest price we observed among tracked products rated 4.0 or higher with 50+ ratings.

Amazon rating: 4.4 across 3,320 ratings. Price observed: $39.74 on 2026-09-03.

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Also worth a look

Honeywell Home 7 Day Programmable Touchscreen Thermostat

Next-highest Amazon rating among the products we track in this category.

Amazon rating: 4.4 across 3,418 ratings. Price observed: $79.65 on 2026-09-03.

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Everything we track in this category

Tracked products ranked by verified Amazon rating (prices observed 2026-09-03)
ModelAmazon ratingObserved priceChecked
ecobee SmartSensor 2-Pack - Temperature & Occupancy Sensor4.6 (8,743 ratings)$79.992026-09-03
Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Silver4.4 (2,550 ratings)$2212026-08-29
Honeywell Home 7 Day Programmable Touchscreen Thermostat4.4 (3,418 ratings)$79.652026-09-03
Honeywell Home RCHTSENSOR-1PK, Smart Room Sensor works with T9/T10 WIFI Smart Thermostats4.4 (3,320 ratings)$39.742026-09-03
ecobee Smart Thermostat Premium - WiFi, Siri & Alexa Built-In, Smart Sensor | Air Quality Monitor. Works with Alexa, Siri and Google Home4.3 (4,134 ratings)$229.992026-08-29
Honeywell Home RTH7600D 7-Day Programmable Touchscreen Thermostat4.3 (9,281 ratings)$69.982026-09-03
Honeywell Home T9 WiFi Smart Thermostat with 1 Smart Room Sensor, Touchscreen Display, White4.3 (2,986 ratings)$214.992026-08-29
Amazon Smart Thermostat, Save money and energy, Works with Alexa and Ring, C-wire required4.0 (25,448 ratings)$79.992026-09-03
Flair Smart Vent 6x10 (White), AC Vent Cover for Floors, Walls and Ceilings.3.8 (535 ratings)$1092026-09-03