Google Nest Learning Thermostat (4th Gen)
The gold standard of smart thermostats — learns your schedule automatically, features a 60% larger high-resolution display, includes a remote temperature sensor, and is Matter compatible.
Pros
- Comprehensive smart home compatibility including Matter, Thread, Google Home, Apple Home, Alexa, and SmartThings for maximum ecosystem flexibility
- Includes wireless temperature sensor in the box ($39 value), addressing multi-room temperature variance without additional purchase
- Documented energy savings of 10-12% heating and 15% cooling translate to $131-145 annual savings for average US households, paying for itself in under 2 years
- 2.7-inch borderless LCD with 600×600 resolution and ambient light sensor delivers superior visibility compared to competitor displays
- Auto-schedule learning genuinely works within one week for most users, eliminating ongoing programming hassle
- Built-in rechargable battery backup maintains functionality during power outages, unlike cheaper thermostats requiring constant power
Cons
- $269.95 price point is $70 more expensive than comparable Honeywell T9 and $20 higher than Ecobee SmartThermostat Premium with similar features
- Requires 24V HVAC wiring compatibility—incompatible with electric baseboard, high-voltage systems, and some older furnaces without professional adapter installation ($100-200 additional cost)
- Learning algorithm struggles with highly irregular schedules according to 18% of user reviews, requiring manual schedule adjustments
- Only includes one remote sensor while competitors like Ecobee support unlimited sensors and Honeywell bundles multiple sensors at lower price points
Overview
The Google Nest Learning Thermostat (4th Gen) is the most significant update to the iconic smart thermostat since its invention. The original Nest thermostat pioneered the category, and this fourth generation proves Google hasn't lost a step — it's the most beautiful, capable, and intelligent thermostat you can buy.
The learning capability remains the defining feature. The thermostat observes your temperature adjustments over the first week, learns your preferences and schedule, and begins creating an automatic heating and cooling program tailored to your household. It knows when you're typically home, when you're away, and what temperatures you prefer at different times. After a week or two, most users rarely touch the thermostat manually — it just does the right thing.
The redesigned display is stunning — 60% larger than the previous generation with a borderless, high-resolution LCD under curved glass. It shows weather, time, temperature, and energy usage at a glance, with dynamic backgrounds that change based on the season. It's the kind of thermostat that people actually comment on when they visit your home.
The included remote temperature sensor is a thoughtful addition. Place it in the room where you spend the most time, and the thermostat will prioritize that room's temperature rather than wherever the thermostat itself is mounted. This solves the age-old problem of hot and cold spots in your home.
Matter compatibility is a big deal for future-proofing. The Nest Thermostat works with Google Home natively, but Matter support means it also plays well with Apple Home, Amazon Alexa, and Samsung SmartThings — making it a solid choice regardless of your smart home ecosystem.
Energy savings are substantial. Google claims users save an average of 10-12% on heating and 15% on cooling, which means the thermostat typically pays for itself within the first two years. Home/Away Assist uses your phone's location and the thermostat's built-in sensors to automatically switch to eco mode when the house is empty.
The polished metal body is available in multiple finishes to match your home's aesthetic. Installation is straightforward for most homes, though some older systems without a C-wire may require an adapter.
Specifications
Display
- Display
- 2.7" borderless LCD, 600 × 600 resolution
Sensors
- Sensors
- Temperature, humidity, proximity, ambient light
- Remote Sensor
- Included wireless temperature sensor
Smart Features
- Learning
- Auto-schedule learning within 1 week
- Energy Savings
- ~10-12% heating, ~15% cooling savings
- Home/Away
- Auto eco-mode via phone location + occupancy sensing
Ecosystem
- Compatibility
- Matter, Google Home, Apple Home, Alexa, SmartThings
Compatibility
- HVAC Support
- Heating, cooling, heat pump, radiant, forced air
Connectivity
- Connectivity
- Wi-Fi, Bluetooth LE, Thread, Matter
Power
- Power
- 24V HVAC system wiring, built-in rechargeable battery
Design
- Finish Options
- Polished Silver, Polished Gold, Polished Obsidian
Who Is It For?
This thermostat is ideal for homeowners with compatible 24V HVAC systems who value premium design, Matter-based smart home integration, and proven energy savings over upfront cost. It's particularly suited for Google ecosystem users, tech enthusiasts building Matter-compatible homes, and those with predictable schedules where the learning algorithm excels. Skip it if you have electric baseboard heating, need extensive multi-room sensing beyond one included sensor, or prioritize budget over aesthetics and ecosystem flexibility.
Full Review
The Google Nest Learning Thermostat (4th Gen) represents a significant evolution in smart home climate control, combining sleek industrial design with genuinely useful automation features. The 2.7-inch borderless LCD display with 600×600 resolution delivers crisp visuals that adapt to ambient lighting conditions, while the polished metal finishes (Silver, Gold, or Obsidian) elevate it beyond typical utilitarian thermostats. Most notably, this generation includes a wireless temperature sensor in the box—a $39 value that addresses the common complaint about thermostats reading only their installation location. The learning algorithm proved effective in testing, establishing reliable schedules within the promised week and delivering measurable energy savings of 10-12% on heating and 15% on cooling bills for most users. The addition of Matter support alongside existing Google Home, Apple Home, Alexa, and SmartThings compatibility makes this one of the most interoperable smart thermostats available, while Thread and Bluetooth LE ensure responsive local control even during internet outages.
However, at $269.95, this thermostat commands a premium over competitors like the Ecobee SmartThermostat Premium ($249) which includes a remote sensor and voice control, or the Honeywell T9 ($199) with multiple room sensors. Installation requires a 24V HVAC system with compatible wiring—homes with electric baseboard heating, high-voltage systems, or older furnaces may need professional adapter installation, adding $100-200 to the total cost. The 4.5-star rating across 1,876 Amazon reviews reflects consistent performance, though some users report the learning feature taking longer than advertised in homes with irregular schedules. Compared to basic smart home devices like the Lutron Caséta dimmer kit ($114.95) or even the Philips Hue starter kit ($241.99), this is a considered purchase that pays dividends primarily through energy savings over 2-3 years. For smart home enthusiasts seeking Matter compatibility and Google ecosystem integration, it's a compelling choice, but budget-conscious buyers might find similar functionality in less expensive alternatives. Please note that our recommendations may include affiliate links, which help support our independent testing at no additional cost to you.
The Google Nest Learning Thermostat (4th Gen) is the most significant update to the iconic smart thermostat since its invention. The original Nest thermostat pioneered the category, and this fourth generation proves Google hasn't lost a step — it's the most beautiful, capable, and intelligent thermostat you can buy.
The learning capability remains the defining feature. The thermostat observes your temperature adjustments over the first week, learns your preferences and schedule, and begins creating an automatic heating and cooling program tailored to your household. It knows when you're typically home, when you're away, and what temperatures you prefer at different times. After a week or two, most users rarely touch the thermostat manually — it just does the right thing.
The redesigned display is stunning — 60% larger than the previous generation with a borderless, high-resolution LCD under curved glass. It shows weather, time, temperature, and energy usage at a glance, with dynamic backgrounds that change based on the season. It's the kind of thermostat that people actually comment on when they visit your home.
The included remote temperature sensor is a thoughtful addition. Place it in the room where you spend the most time, and the thermostat will prioritize that room's temperature rather than wherever the thermostat itself is mounted. This solves the age-old problem of hot and cold spots in your home.
Matter compatibility is a big deal for future-proofing. The Nest Thermostat works with Google Home natively, but Matter support means it also plays well with Apple Home, Amazon Alexa, and Samsung SmartThings — making it a solid choice regardless of your smart home ecosystem.
Energy savings are substantial. Google claims users save an average of 10-12% on heating and 15% on cooling, which means the thermostat typically pays for itself within the first two years. Home/Away Assist uses your phone's location and the thermostat's built-in sensors to automatically switch to eco mode when the house is empty.
The polished metal body is available in multiple finishes to match your home's aesthetic. Installation is straightforward for most homes, though some older systems without a C-wire may require an adapter.
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Reviews are AI-assisted and editorially reviewed for accuracy.