Independent · sourced · Updated June 2026
Best Smart Thermostats (2026)
The cheapest smart thermostats is Amazon Smart Thermostat at $59.99. Best by the numbers — Amazon Smart Thermostat (lowest price), Honeywell Home X8S Smart Thermostat (newest). This page compares 13 smart thermostats across 7 brands on price and key specs — every figure sourced, updated June 2026.
13 smart thermostats compared on the specs that matter and US price — ranked cheapest-first. Every spec and price links to its source and the date we captured it.
Key takeaways
- Lowest price: Amazon Smart Thermostat at $59.99 (US MSRP $59.99 (~$60). Announced Sept 28, 2021 in partnership with Honeywell Home; corroborated by Bloomberg launch coverage, Bob Vila 2026 review, and multiple utility marketplace listings. Third-party retail sometimes ~$79.99 but manufacturer MSRP is $60. Optional ~$25 C-wire power adapter kit available.).
- Typical price: from $59.99, median $204.99, up to $279.99 — across 10 priced.
- Tracked: 13 products across 7 brands, current through 2026-06-15.
- Compared on: display, sensors included, geofencing, hvac compatibility, c wire required, voice assistants.
Best by the numbers
Objective winners — each is the leader on one measured spec, with the figure. No subjective ranking.
- Lowest price: Amazon Smart Thermostat ($59.99)
- Newest: Honeywell Home X8S Smart Thermostat (2025-12)
Comparison
| # | Smart Thermostat | Price | display | sensors included | geofencing | hvac compatibility | c wire required | voice assistants | Source |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Amazon Smart Thermostat | $59.99 | Basic segmented LED/LCD display; no color touchscreen | Temperature plus indoor humidity sensor (humidity reported in Alexa app, not shown on the on-unit display); no occupancy sensor, no remote sensor support | true | Low-voltage 24V systems (forced air gas/oil/electric, heat pumps); single-stage systems; does not support ACC-/ACC+ terminals, dual-band Wi-Fi only on 2.4 GHz | false | Amazon Alexa only (requires separate Echo device) | safewise.com |
| 2 | Wyze Thermostat | $79.98 | IPS display with 180-degree viewing angle; 120 mm L x 65 mm W x 33 mm D overall unit dimensions | Built-in temperature sensor; up to 6 optional Wyze Room Sensors supported (sold separately) | false | 24V forced air (gas/oil/electric), hydronic, heat pump (including dual fuel), single-stage and multi-stage conventional and heat pump; not compatible with electric baseboard (high-voltage) | false | Amazon Alexa, Google Assistant (requires separate Echo/Google device) | wyze.com |
| 3 | Google Nest Thermostat (2020) | $129.99 | 2.4-inch display with touch-sensitive strip control on right side (replaces rotating ring); mirror finish | Temperature, 60 GHz Soli radar occupancy sensor; no remote sensor support | true | 85% of 24V systems; forced air (gas/oil/electric), heat pumps; simpler HVAC support than Nest Learning Thermostat; not compatible with communicating HVAC systems | false | Google Assistant (via Google Home), Amazon Alexa, IFTTT | en.wikipedia.org |
| 4 | ecobee Smart Thermostat Essential | $139.99 | 2.8-inch full-color LCD touchscreen, 240x320 pixels | Built-in temperature and humidity; no occupancy sensor; room sensors sold separately | — | Gas, oil, electric forced air; conventional 2H/1C and 1H/2C; heat pump 2H/1C; Power Extender Kit sold separately | false | Amazon Alexa, Apple HomeKit, Google Assistant | ecobee.com |
| 5 | ecobee Smart Thermostat Enhanced | $199.99 | 4-inch full-color LCD touchscreen, 540x540 pixels (50% larger than previous ecobee models) | Built-in temperature, humidity, occupancy (radar), proximity; SmartSensor not included (sold separately); up to 20 additional sensors supported | true | Most 24VAC systems: conventional 2H/2C, heat pumps 2H/2C + 1 stage AUX, boilers, PTACs, fan coil units (up to 3 fan speeds); Power Extender Kit included | false | Amazon Alexa, Apple HomeKit, Google Assistant, Samsung SmartThings, IFTTT | ecobee.com |
| 6 | Honeywell Home T9 Smart Thermostat | $209.99 | Graphical color touchscreen, 4.92 in H x 3.7 in W | Includes one wireless SmartRoom sensor (temperature + humidity); up to 20 additional SmartRoom sensors supported | true | Up to 2H/2C conventional systems; up to 3H/2C heat pump systems; 24V low-voltage | false | Amazon Alexa, Google Assistant, Apple HomeKit, Microsoft Cortana, Samsung SmartThings, IFTTT, Ring | honeywellhome.com |
| 7 | Sensi Touch 2 Smart Thermostat | $209.99 | Color touchscreen (size not specified on product page); Sensi app control available | Built-in temperature; compatible with Sensi Room Sensors and Outdoor Sensors (sold separately) for temperature and humidity monitoring | true | Universal: single-stage 1H/1C, multi-stage 2H/2C, heat pump 4H/2C; 24V low-voltage systems | false | Amazon Alexa, Google Assistant, Samsung SmartThings (no Apple HomeKit) | sensi.copeland.com |
| 8 | Honeywell Home X8S Smart Thermostat | $219.99 | 5-inch full-color touchscreen with customizable color and style options | Onboard radar occupancy sensor built-in; wireless room sensor included (varies by variant) or sold separately | true | Up to 4H/2C heat pump systems; up to 3H/4C conventional systems; 24V low-voltage; C-wire required | true | Amazon Alexa, Google Assistant, Apple HomeKit (Matter certified) | honeywellhome.com |
| 9 | ecobee Smart Thermostat Premium | $259.99 | 4-inch full-color LCD touchscreen, 540x540 pixels | Built-in temperature, humidity, occupancy (radar), proximity; includes one SmartSensor (temperature + occupancy) in box; up to 20 additional sensors supported | true | Most 24VAC systems: conventional 2H/2C, heat pumps 2H/2C + 2 stage AUX, boilers, PTACs, fan coil units (up to 3 fan speeds); Power Extender Kit included | false | Amazon Alexa (built-in), Apple Siri (via HomePod/HomePod mini), Google Assistant, Samsung SmartThings, IFTTT | ecobee.com |
| 10 | Google Nest Learning Thermostat (4th Gen) | $279.99 | 2.68-inch circular stainless-steel framed display with Farsight (activates when motion detected), 3.9-inch diameter body | Temperature, humidity, occupancy (60 GHz Soli radar), ambient light; up to 6 additional Nest temperature sensors supported | true | Most 24V systems: single- and multi-stage forced air (gas/oil/electric), heat pumps (1-3 stage heating, 1-2 stage cooling), radiant, hydronic, boilers; not compatible with communicating HVAC systems | false | Google Assistant (built-in via Google Home app), Amazon Alexa, Matter | en.wikipedia.org |
| 11 | Honeywell Home T10 Pro Smart Thermostat | — | Color touchscreen, 4.92 in H x 3.7 in W x 0.95 in D | Includes RedLINK 3.0 room sensor (temperature + humidity); multiple additional RedLINK room sensors supported | true | Up to 3H/2C heat pump systems; up to 2H/2C conventional systems; 24V low-voltage | false | Amazon Alexa, Google Assistant, Apple HomeKit, Samsung SmartThings, IFTTT | honeywellhome.com |
| 12 | Mysa for Mini-Split Heat Pumps | — | LED display with touch buttons; adjustable brightness | Temperature (±0.5°F accuracy), humidity (±2%) | true | Ductless mini-split heat pumps from compatible brands: Mitsubishi, Fujitsu, LG, Frigidaire, GE, DeLonghi, Danby; IR infrared control (requires line-of-sight); 2.4 GHz WiFi required | false | Amazon Alexa, Google Home, Apple HomeKit | getmysa.com |
| 13 | Mysa Smart Thermostat | — | LED display with touch buttons (temperature up/down, mode left/right) | Temperature (±0.5°F accuracy), humidity (±2%), light sensor, proximity sensor | true | Most 24V central HVAC: gas/oil/electric furnaces, central AC, heat pumps with AUX heat; single and multi-stage conventional and heat pump; C-wire required or adapter available | true | Matter certification expected 2026 for Alexa, Google Home, Apple HomeKit; no current native integration documented | getmysa.com |
Specs are as published by the manufacturer (or a reputable spec source where the official page was unavailable); prices are US launch MSRP. Full per-product records and all spec columns are in our open dataset.
Popular comparisons
Frequently asked questions
What is the cheapest smart thermostats?
Amazon Smart Thermostat is the cheapest at $59.99 (US MSRP $59.99 (~$60). Announced Sept 28, 2021 in partnership with Honeywell Home; corroborated by Bloomberg launch coverage, Bob Vila 2026 review, and multiple utility marketplace listings. Third-party retail sometimes ~$79.99 but manufacturer MSRP is $60. Optional ~$25 C-wire power adapter kit available.), as of 2026-06-15.
How much does smart thermostats cost?
Across the 10 smart thermostats with a published price, the median is $204.99, ranging from $59.99 to $279.99, as of 2026-06-15.
Which smart thermostats is best by the numbers?
Lowest price: Amazon Smart Thermostat ($59.99). Newest: Honeywell Home X8S Smart Thermostat (2025-12).
How many smart thermostats are compared here?
13 smart thermostats across 7 brands, with US price and key specs, current through 2026-06-15.
More hardware comparisons
How we compiled this
Products selected as notable 24V low-voltage smart thermostats (plus one mini-split and one high-voltage specialist) a buyer compares in 2026, covering budget through premium tiers. Seeds from prompt verified and expanded to 13 products. Primary sources: manufacturer product pages (ecobee.com, wyze.com, honeywellhome.com, getmysa.com, sensi.copeland.com), Wikipedia (Nest Learning Thermostat article for generation/release-date data), SafeWise review blog (safewise.com/blog/best-smart-thermostats), and HowToGeek (howtogeek.com) for corroboration. Google Store pages consistently served truncated JS-rendered content; specs cross-confirmed via Wikipedia, SafeWise, and 9to5Google search snippets. Amazon.com consistently returned 5xx errors; Amazon Smart Thermostat specs sourced from SafeWise review. Honeywell T9/T10 Pro verified via honeywellhome.com product pages (both now discontinued/sold out). priceUsd is US MSRP at time of research (2026-06-15) or launch MSRP where current page shows 'sold out'. Mysa prices are listed in CAD on manufacturer site; USD equivalents at parity noted as null with explanation. accessedAt = 2026-06-15 for all sources.
Last verified 2026-06-15. We re-check published specs and prices on a recurring cadence and update this page when they change.
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