Review · Budget pick · Smart thermostats
Thermi Go review
A simple smart thermostat with a clear app and no subscription.
7.9out of 10
Savings8.2
Installation7.8
App8.0
Integrations7.4
Check price on AmazonPrices checked September 30, 2026. We may earn a commission. Learn more
6-month price historyLowest price: $119
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In this review
A simple smart thermostat with a clear app and no subscription.
Pros
- No subscription
- Fits existing wiring
Cons
- No modulating control
Specifications
Price from$119
Test score7.9 out of 10
Rank in our testBudget pick
Tested inThe best smart thermostat
Models compared8
Test period12 weeks
How it compares
| WarmWise 3 | Thermi Go | WarmWise Pro | |
|---|---|---|---|
| Test score | 8.9 | 7.9 | 9.1 |
| Price from | $219 | $119 | $299 |
| Rank | Our pick | Budget pick | Upgrade |
Alternatives
Frequently asked questions
Does a smart thermostat work with every HVAC system?
Almost all modern systems work with it. Some models need a C-wire for continuous power.
How much do you really save?
In our test, between 6 and 11 percent on energy compared with a programmable thermostat, depending on how often you’re away.
Sources
- BrasQ in-house measurements (2026)
- Manufacturer specifications and manual
Changelog
- Prices checked and review updated.
- Review published.
Tested byJake MorrisonHVAC installer by trade, tests tools and smart devices for the home.
Reviewed byRyan MitchellEditor-in-chief. Checks facts, measurements and sources.
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