Best Smart Thermostats
Top smart thermostats ranked by transparent trust scores.
8 products ranked
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Top Pick
9.4
Excellent
Google Nest Learning
Ranked #1 based on expert reviews, user sentiment, and value analysis.
#1
9.4
Excellent
Consensus
Compare
Ranked #1 based on expert reviews, user sentiment, and value analysis.
Pros
- Auto-learning temperature schedule
- Beautiful mirror display
- Google Home ecosystem integration
Cons
- Requires C-wire for most installs
- No native Apple HomeKit support
Don't buy this if…
- Many homes lack the C-wire this thermostat needs, requiring additional wiring or a power adapter kit.
#2
9.2
Excellent
Consensus
Compare
Ranked #2 based on expert reviews, user sentiment, and value analysis.
Pros
- Built-in air quality monitor
- Alexa built-in
- Room sensor included
Cons
- Most expensive option
- Air quality features are basic
Don't buy this if…
- The built-in air quality monitor measures VOCs and CO2 estimates but is not a replacement for dedicated air quality monitors.
#3
9.0
Excellent
Consensus
Compare
Ranked #3 based on expert reviews, user sentiment, and value analysis.
Pros
- Extremely affordable
- Alexa integration
- Energy Star certified
Cons
- Requires C-wire
- No built-in voice assistant
Don't buy this if…
- Despite the Amazon brand, this thermostat has no built-in microphone and requires a separate Alexa device for voice control.
#4
8.7
Excellent
Consensus
Compare
Ranked #4 based on expert reviews, user sentiment, and value analysis.
Pros
- Broad HVAC compatibility
- Room sensor support
- Geofencing auto away
Cons
- App can be slow to respond
- Touch screen could be more responsive
Don't buy this if…
- Room sensors are sold separately and each costs an additional $30-40, increasing the total system cost significantly.
#5
8.5
Excellent
Consensus
Compare
Ranked #5 based on expert reviews, user sentiment, and value analysis.
Pros
- Works without C-wire
- Apple HomeKit native support
- Easy DIY installation
Cons
- No learning capability
- Basic design compared to Nest
Don't buy this if…
- Battery operation without a C-wire may drain batteries faster with certain HVAC systems and requires monitoring.
#6
8.3
Good
Consensus
Compare
Ranked #6 based on expert reviews, user sentiment, and value analysis.
Pros
- Works with baseboard heaters
- Apple HomeKit support
- Energy usage tracking
Cons
- Only for high-voltage heating
- One needed per zone
Don't buy this if…
- You need one Mysa unit per heating zone, which means multi-room homes can require 5+ units at $139+ each.
#7
8.1
Good
Consensus
Compare
Ranked #7 based on expert reviews, user sentiment, and value analysis.
Pros
- Makes dumb ACs smart
- Works with mini-splits and window units
- Geofencing and scheduling
Cons
- Only works with IR-controlled units
- Requires line of sight to AC
Don't buy this if…
- The IR blaster must have a clear line of sight to your AC unit's infrared sensor to function properly.
#8
7.9
Good
Consensus
Compare
Ranked #8 based on expert reviews, user sentiment, and value analysis.
Pros
- Very affordable smart thermostat
- Touchscreen display
- 7-day programmable scheduling
Cons
- No voice assistant integration
- Basic app with limited features
Don't buy this if…
- This thermostat has no Alexa, Google, or HomeKit integration and can only be controlled through its own basic app.
Quick Comparison
How We Rank
Composite trust score from expert reviews, user sentiment, complaint analysis, and value assessment.
Trust Score
Weighted composite of all factor scores
Expert Score
Aggregated expert review ratings
User Sentiment
Community votes and review analysis
Value Score
Price-to-performance ratio
Freshness
Recency of reviews and data
Change Log
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