Sensi Smart thermostat is the top pick among smart thermostats under $125, rated 4.4 stars across 23,040 customer reviews.
SensiSmart thermostat
4.4(23,040)20% OFF$129.99$103.50
CieloBreez Max
4.6(1,005)$114.35
Honeywell HomeRTH9585WF Wi-Fi Smart Color Thermostat
4.3(20,086)31% OFF$179.99$123.49
Honeywell HomeT5 Smart Thermostat
4.3(1,496)30% OFF$109.99$76.80
GoogleNest Thermostat
4.1(29,616)12% OFF$129.99$114.38
SensiLite smart thermostat
4.0(2,342)$63.00
Honeywell HomeX2S Smart Thermostat
4.2(412)26% OFF$84.99$62.99
MerossMTS300 Smart Thermostat
3.8(823)5% OFF$62.99$59.84- Price alerts
Thermostats under $125, updated as prices fall
We check the price of every Thermostat in the catalog daily, and email you the ones that drop into this range.
AmazonSmart Thermostat
4.3(134)3% OFF$122.98$119.16
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Frequently asked questions
What are the best smart thermostats under $125?
Sensi Smart thermostat, Cielo Breez Max and Honeywell Home RTH9585WF Wi-Fi Smart Color Thermostat lead our ranking of smart thermostats under $125, ordered by customer rating weighted by how many reviews back it. The full list compares 9 products in this price range.
How many smart thermostats cost less than $125?
This page tracks 9 smart thermostats under $125 from 6 brands, with prices starting at $59.84.
Are these prices up to date?
Prices come from each product's Amazon listing and are re-checked continuously, so every card shows the latest price we have. A product whose price rises above $125 drops off this list on the next update.
Looking for more than $125?
See all the thermostats in the catalog, compared side by side on specs, price and rating.