Compare Smart Thermostats Prices

99 products$19 – $85718 on saleTop brand: Honeywell HomeUpdated 3:40 PM UTC

Comparing prices on 99 smart thermostats across Amazon, Best Buy, Walmart, and other major US retailers. Prices range from $19 to $857. Top brand: Honeywell Home. 18 products are currently discounted below their list price. Every price is refreshed regularly so you can compare retailers and buy at the lowest price available today.

Our Top Picks

Best Value

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

$40.50

Retailer Steal

Honeywell Home RTH7600D 7-Day Programmable Touchscreen Thermostat, White

$19.49

Most Compared

New Honeywell Home X8S WiFi Smart Thermostat with Video Doorbell Compatibility, IAQ Control, and Customizable Touchscreen Display, Black

$110.00

All Smart Thermostats (99)

Save $45-56%

Honeywell Home

New! Honeywell Home Smart Thermostat, Conventional/Heat Pump Compatibility, WiFi Thermostat for Home, X2S, Gray

$35.00

$79.98

at eBay

Save $89-69%

Emerson

Sensi Smart Thermostat, 100 Years Of Expertise, Wi-Fi, Data Privacy, Programmable, Easy DIY Install, Works With Alexa, Energy Star Certified, Mobile App, ST55

$40.50

$129.99

at eBay

Save $83-64%

Google

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Charcoal

$46.99

$129.99

at eBay

Save $130-54%

Honeywell Home

New Honeywell Home X8S WiFi Smart Thermostat with Video Doorbell Compatibility, IAQ Control, and Customizable Touchscreen Display, Black

$110.00

$239.99

at eBay

Save $42-69%

Honeywell Home

Honeywell Home RTH7600D 7-Day Programmable Touchscreen Thermostat, White

$19.49

$61.93

at eBay

Save $50-50%

Honeywell Home

Honeywell Home RTH8800WF2022, T5 WiFi Smart Thermostat, 7 Day-Programmable Touchscreen, Alexa Ready, Geofencing Technology, Energy Star, C-Wire Required

$49.99

$99.99

at eBay

Save $16

Honeywell Home

Honeywell Home RTH9600WF Smart Color Thermostat ENERGY STAR Wi-Fi Programmable Touchscreen Alexa Ready - C-Wire Required

$163.99

$179.99

at Walmart

Save $62-22%

Google

Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Obsidian

$218.00

$279.99

at Walmart

Heagstat

Heagstat Non-Programmable Thermostats for Home Conventional Single-Stage Systems, up to 1 Heat/ 1 Cool (with White Backlight)

See price on Amazon →

Save $15-30%

Honeywell Home

New! Honeywell Home Programmable Thermostat, Single-Stage, 1 Heat/1 Cool Compatibility, 5-2 Day Schedule, X2P, White, RTH20B

$34.99

$49.99

at Amazon

Save $24-15%

Amazon

Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required (Pack of 2)

$135.98

$159.98

at Amazon

Save $35-13%

Google

Google Nest Learning Thermostat (4th Gen, 2024) with Nest Temperature Sensor - Energy Saving Smart Thermostat - Compatible with Alexa, Apple HomeKit and Google Home App - Polished Gold

$244.69

$279.99

at Amazon

Emerson

Sensi Lite Smart Thermostat, Programmable, WiFi, Easy DIY, Works With Alexa, ENERGY STAR Certified, ST25, Most Systems C-Wire Not Required, C-Wire needed with Heat/Cool Only & Heat Pump System – Black

$47.00

at eBay

Honeywell Home

Honeywell Home T9 WiFi Smart Thermostat with 1 Smart Room Sensor, Touchscreen Display, White

$149.95

at eBay

ecobee

ecobee Smart Thermostat Premium with Smart Sensor and Air Quality Monitor - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant

$179.99

at eBay

ecobee

ecobee Smart Thermostat Enhanced - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Energy Star Certified - Smart Home

$185.99

at Walmart

Google

Nest T4000ES E Hubless Smart Thermostat

$36.00

at eBay

Emerson

Emerson Sensi Touch Wi-Fi Smart Thermostat with Touchscreen Color Display, Works with Alexa, Energy Star Certified, C-wire Required, ST75 Black 5.625" x 3.4" x 1.17"

$69.99

at eBay

Google

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Fog

$94.51

at Walmart

ecobee

ecobee Smart Sensor 2 Pack - Comfort, Security, Energy Savings, Temperature and Occupancy Detection - Compatible with ecobee Thermostats for Home

$99.99

at Amazon

Sensi

Sensi Touch 2 Smart Thermostat with Touchscreen Color Display, 100 Years of Expertise, Programmable, Wi-Fi, Data Privacy, Easy DIY, Works with Alexa, Energy Star Certified, ST76, C-Wire Required

$129.96

at Walmart

Mysa

Mysa Smart Thermostat for Electric Baseboard Heaters 240V | Remote Control with 100% Free APP | Easy Install | HomeKit, Alexa, Google Home | Wi-Fi Programmable | Temp. & Humidity Alerts

$155.00

at Walmart

ecobee

ecobee Trim Plate for Smart Thermostat Essential Only - Programmable WiFi Thermostat Accessory

$14.99

at Amazon

Honeywell

Honeywell TH6320WF2003/U Lyric T6 Thermostat, 3 Heat / 2 Cool Heat Pump Or 2 Heat / 2 Cool Conventional, 4.09" x 4.09" x 1.06"

$241.46

at Walmart

ecobee

ecobee SmartThermostat with Voice Control - Programmable Wifi Thermostat - Works with Siri, Alexa, Google Assistant - Smart Thermostat for Home

$186.99

at Walmart

Honeywell

Honeywell TH9320WF5003 Wi-Fi 9000 Color Touch Screen Programmable Thermostat, 3.5 x 4.5 Inch, White, 'Requires C Wire"

$189.81

at Amazon

Google

Google Nest Learning Thermostat - 3rd Gen - Programmable Smart Thermostat for Home - Compatible with Alexa (Stainless Steel)

See price on Amazon →

Nest

Nest Thermostat E Programmable Smart Thermostat for Home, App Controlled via Wifi, Programmable, Compatible with Alexa and Google Assistant, Frosted White Color (T4002ES)

$69.99

at Amazon

Amazon

Like-New Amazon Smart Thermostat – ENERGY STAR certified, DIY install, Works with Alexa – C-wire required

$69.99

at Amazon

Honeywell Home

NEW! Honeywell Home Smart Thermostat, Conventional/Heat Pump Compatibility, WiFi Thermostat for Home, X2S, White

$79.99

at Amazon

vine

Vine Smart Thermostat for House with Nightlight, 4.3 Inches WiFi Thermostats for Home Compatible with Alexa and Google Assistant, 7day x 8period Programmable, C-Wire Required

$139.99

at Amazon

Aqara

Aqara Smart Thermostat W200 with Apple Adaptive Temperature & Clean Energy Guidance, 4" Touchscreen, Matter Controller, Built-in Radar Sensor, Works with Apple Home, Siri, Google Assistant, Alexa

$159.99

at Amazon

vine

vine Smart Thermostat for House, WiFi Thermostats for Home Compatible with Alexa and Google Assistant, 7day x 8period Programmable, Energy Star Certified, C-Wire Required

See price on Amazon →

Google

Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi Thermostat - Snow (Renewed)

See price on Amazon →

meross

meross Matter Smart Thermostat for Electric Baseboard Heater, Works with Alexa, HomeKit, Google, SmartThings, Programmable WiFi Thermostat for House, Energy Saving, App & Voice Control for Smart Home

See price on Amazon →

Honeywell Home

Honeywell Home RTH8560D 7 Day Programmable Touchscreen Thermostat

See price on Amazon →

Honeywell Home

Honeywell TH6220WF2006/U Lyric T6 Pro Wi-Fi Programmable Thermostat with Stages Up to 2 Heat/1 Cool Heat Pump or 2 Heat/2 Cool Conventional

See price on Amazon →

Google

Google Nest Learning Thermostat - Programmable Smart Thermostat for Home - 3rd Generation Nest Thermostat - Compatible with Alexa - Stainless Steel (Renewed)

See price on Amazon →

Google

Google Nest Thermostat - Programmable Smart Learning Thermostat with Easy Installation and Trim Kit Bundle, White

See price on Amazon →

SASWELL

SASWELL Smart Thermostat 3H/2C, WiFi Household Thermostat for Heat Pump and Conventional Multi-Stage System, Easy DIY Installation, Voice Control, Support Alexa and Google Home, C-Wire Required

See price on Amazon →

meross

meross Smart Thermostat for Home, WiFi Thermostat Works with Matter, Alexa, Apple Home, Google Assistant, App & Voice Control, 7x24h Scheduling, Energy Saving, C-Wire Required

See price on Amazon →

Mysa

Mysa Smart Thermostat LITE for Electric Baseboard Heaters | Save Up to 26% on Heating | WiFi Programmable | 7-Day Scheduling | HomeKit, Alexa, Google | 120V-240V

See price on Amazon →

Cielo Breez

Breez Max Smart AC Controller | AHR Product of the Year WiFi Thermostat for Mini-Split, Window, Portable AC/Heat Pump | AI-Based Tech | Free App, No Subscription | Alexa, Google, IFTTT etc. (White)

See price on Amazon →

Honeywell Home

Honeywell Home X7B Smart Programmable Wi-Fi Thermostat with Humidity Monitoring, 4.3" Customizable Touchscreen Display, Energy Star Certified, Works w/Alexa, Matter, Apple Home and Google

See price on Amazon →

Honeywell Home

Honeywell Home X7S Smart Programmable Wi-Fi Thermostat with Humidity Monitoring, 4.3" Customizable Touchscreen Display, Sensor Feature, Energy Star Certified, Works w/Alexa, Matter, Apple, Google

See price on Amazon →

Honeywell Home

Honeywell Home X7S Smart Programmable Wi-Fi Thermostat with Humidity Monitoring, 4.3" Customizable Touchscreen Display, Sensor Feature, Energy Star Certified, Works w/Alexa, Matter, Apple and Google

See price on Amazon →

Playhardest

Playhardest Honeywell TH9320WF5003 Wi-Fi 9000 Color Touch Screen Programmable Thermostat, White with Extended 5-Year Warranty

See price on Amazon →

Lennox

Lennox S40 (22V24) Smart Thermostat, Touchscreen, WiFi, Communicating System Control, Programmable, High Efficiency, Geo-Fencing, Remote Access, Wi-Fi and Alexa Enabled, Easy Installation

See price on Amazon →

Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on the retailer's site at the time of purchase will apply.

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Frequently Asked Questions About Smart Thermostats

How many smart thermostats does BestPriceScanner track?

We currently track 99 smart thermostats with prices ranging from $19 to $857. Popular brands in this category include Honeywell Home, Google and ecobee. Every product is refreshed regularly across Amazon, Best Buy, Walmart and EcoFlow.

What is the cheapest Smart Thermostat right now?

The lowest-priced smart thermostat we're tracking starts at $19. Sort by "Price: Low to High" above to see the most affordable options first. Keep in mind that prices change frequently, so what's cheapest today may shift tomorrow.

Are smart thermostats cheaper on Amazon or Best Buy?

Neither retailer is consistently cheaper. Amazon often wins on Honeywell Home, Google and ecobee products, but Best Buy runs exclusive promotions and open-box deals that can beat Amazon's price. Walmart occasionally has the lowest price on popular models. That's why we compare all three in one place so you don't have to check each site separately.

How many smart thermostats are on sale right now?

Right now, 18 smart thermostats are at a reduced price below their list price. Look for the green "Save" badge on product cards above. You can also sort by "Biggest Discount" to see the largest discounts first.