Tool
Compare two products
Pick any two products from our reviews and see specifications, price, buyer ratings and our scores in one table.
Recorded evidence
What separates these listings
- Price snapshot
- $47.01 price gap
- Product A has the lower captured price. This excludes delivery and ongoing costs.
- Editorial assessment
- 0.6-point score gap
- Product B has the higher research score, not a measured performance advantage.
- Specification coverage
- 0 of 16 fields shared
- Shared labels have recorded values on both sides; matching labels do not guarantee matching units or test conditions.
Product A
Amazon Smart Thermostat, Save money and energy, Works with Alexa and Ring
- Potential fit
- Alexa-centric homes with verified C-wire setups
- Trade-off to resolve
- Strict C-wire requirement
Product B
Google Nest Thermostat - Smart Thermostat for Home - Programmable Wifi
- Potential fit
- Basic Google ecosystem climate automation
- Trade-off to resolve
- Middling 4.1 user rating
Side-by-side evidence
16 of 16 recorded specification fields shown
| Side by side |  |  |
|---|---|---|
| Buyer rating | 4.0 | 4.1 |
| Price | $56.99 | $104.00 |
| Our score | 6.8/10 | 7.4/10 |
| Ratings count | 25,666 ratings | 29,810 ratings |
| Brand | Amazon | |
| Best for | Alexa-centric homes with verified C-wire setups | Basic Google ecosystem climate automation |
| Hardware engineering | 7.5/10 | — |
| Protocol flexibility | 3.0/10 | — |
| Installation process | 6.8/10 | — |
| Energy efficiency | 8.2/10 | — |
| Market value | 8.5/10 | — |
| Hardware build | — | 7.0/10 |
| Ecosystem openness | — | 7.8/10 |
| Installation flexibility | — | 6.5/10 |
| Feature set | — | 7.5/10 |
| Value proposition | — | 8.0/10 |
| Connectivity Technology | Not recorded | Wi-Fi |
| Power Source | Not recorded | Battery Powered |
| Voltage | Not recorded | 24 volts |
| Screen Size | Not recorded | 1.07 inches |
| Connectivity Protocol | Not recorded | Wi-Fi |
| Controller Type | Not recorded | Amazon Alexa, Android, Google Assistant, iOS, nest |
| Additional Features | Not recorded | Programmable |
| Specific Uses For Product | Not recorded | Heat Pump |
| Temperature Control Type | Not recorded | Heating, Cooling |
| Display Type | Not recorded | LCD |
| Control Type | Not recorded | Button Control |
| Control Method | Not recorded | Voice |
| Mounting Type | Not recorded | Wall Mount |
| Number of Batteries | Not recorded | 2 AAA batteries required. (included) |
| Color | Not recorded | Snow |
| Shape | Not recorded | Round |
| Our verdict | At $56.99, this is one of the most affordable smart thermostats on the market, built to integrate closely with Alexa and Ring. It explicitly requires a C-wire, meaning older homes without one will face additional adapter costs or complex wiring. The 4.0 rating reflects setup friction and dependence on Amazon's ecosystem. | Functionally identical to the Charcoal model, this unit offers the same app-based control at a slightly lower $117.45 price point. It lacks advanced sensor expansion found on higher-tier models and relies heavily on cloud infrastructure. HVAC wiring compatibility must be confirmed prior to purchase. |
| Pros and cons |
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Prices and buyer ratings are captured snapshots. A dash means the detail was not recorded, not that a feature is absent. Editorial scores are research assessments, not laboratory measurements.
Sources and limits
This page summarizes our research reviews of Amazon listings, listed specifications and captured buyer ratings. It is not a hands-on test. Scores are editorial assessments, not measured performance; prices are recorded snapshots and may change. A category can include both main products and accessories, so its overall price range is not the cost of a complete setup.
Most recent product record update: September 25, 2026. Individual records may be older; this is not a verification date for every claim. Prices on this page were read from the listings Nov 12, 2026.
- Amazon listing: Amazon Smart Thermostat, Save money and energy, Works
- Amazon listing: Google Nest Thermostat - Smart Thermostat for Home
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