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Google Nest Thermostat (2020) Review: 8.2/10 - Smart temperature control made accessible

8.2/10
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At a Glance

8.2/10

The Google Nest Thermostat (2020) delivers excellent value for anyone wanting smart temperature control without breaking the bank.

Best for: people building out a connected home on their preferred assistant ecosystem

Skip if: your devices don't support this product's assistant ecosystem

Prices last checked June 2026

Overview

The Google Nest Thermostat (2020) brings intelligent climate control to the mass market at a more accessible $129 price point compared to the flagship Nest Learning Thermostat. This model features a sleek mirror-finish display with Google Assistant built in, allowing voice control of temperature and smart home devices. It works with the Google Home app for scheduling, remote control, and energy usage insights.

Design & Build

The 2020 Nest Thermostat adopts a simpler, more compact design than its Learning Thermostat sibling, with a glossy polycarbonate face available in four colors. The 2.4-inch touch-sensitive display shows temperature, weather, and time, and it illuminates when you approach thanks to the built-in proximity sensor. The device is powered either by a standard C-wire or an included USB-C wall adapter, making it compatible with a wider range of homes. Build quality feels solid for the price, though the materials are less premium than the metal-ringed Learning Thermostat.

Performance

Temperature control is accurate and responsive, with the thermostat learning your schedule over the first week and adjusting automatically via the Home & Away routine using phone location. The Nest Temperature Sensors (sold separately, $39 each) can be paired with additional room sensors to eliminate hot and cold spots across multiple rooms. Energy History reports show how much heating and cooling your home uses and offer tips to save. The device also supports HVAC monitoring that alerts you if something is wrong with your system. Nest Renew, available in the Google Home app, helps shift energy usage to cleaner energy times automatically. Integration with Google Assistant and Amazon Alexa is seamless, and the Matter-ready firmware ensures future smart home compatibility.

Features

Google Assistant is built directly into the thermostat, enabling hands-free temperature adjustments, weather queries, and smart home device control. The Google Home app provides scheduling, presence sensing via phone location, and HVAC air filter reminders. The thermostat supports multi-zone systems and can work as part of a broader Nest smart home ecosystem with Nest Cameras and Nest Doorbells. Energy savings of up to 12% on heating and 15% on cooling are typical according to Nest’s internal studies.

Pros

  • Affordable $129 entry point into smart thermostats with premium features
  • Built-in Google Assistant for hands-free voice control of temperature and smart home
  • Works with 95% of 24V HVAC systems and includes USB-C power adapter if no C-wire
  • Nest Renew feature for shifting energy use to cleaner energy times
  • Simple, intuitive Google Home app interface with Energy History reports

Cons

  • No remote temperature sensor included in the box
  • Less premium build compared to Nest Learning Thermostat
  • Display can be difficult to read at sharp angles
  • Lacks some smart scheduling features of the more expensive model

Verdict

The Google Nest Thermostat (2020) delivers excellent value for anyone wanting smart temperature control without breaking the bank. It offers Google Assistant, solid energy tracking, and reliable HVAC management at a price that undercuts competitors significantly. While it lacks the auto-scheduling smarts and premium materials of the Nest Learning Thermostat, it covers all the essentials and adds Matter-ready compatibility, making it the smarter buy for most households who want a reliable, voice-controlled thermostat without overpaying for features they may not use, earning it a 8.2/10.

Sources

Where to Buy

Check current pricing on eBay or Amazon.

Prices last checked June 2026. Pricing and availability are accurate as of the date/time indicated and are subject to change.

📊 Comparison: Google Nest Thermostat (2020) vs. Competitors

Specification Google Nest Thermostat (2020) 8.2/10 Amazon Echo Show 10 9.0/10 Ecobee Smart Thermostat Premium 8.4/10 Anker PowerCore 20100 8.2/10
Price $129 $249 $249 $49
Display 2.4-inch color LCD, 320 x 240 10.1' 1280x800 4.0-inch 480x480 IPS touchscreen --
Connectivity Wi-Fi 802.11 b/g/n, Bluetooth Low Energy, Thread, Matter-ready Wi-Fi 5, Bluetooth 5.0 Wi-Fi 6, Bluetooth 5.2, Thread, Zigbee --
Sensors Temperature, humidity, ambient light, proximity -- Built-in motion, proximity, occupancy, air quality --
Compatibility 95% of 24V heating/cooling systems -- -- --
Power Battery or C-wire powered -- C-wire required (adapter included) --
Dimensions 3.3 x 3.3 x 1.1 in -- -- --
Finishes Snow, Charcoal, Fog, Sand -- -- --
Warranty 2-year limited -- -- --
Speaker -- 2x 1' + 3' woofer -- --
Chip -- MediaTek MT8183 -- --
Cam -- 13MP with auto-framing -- --
Hub -- Built-in Zigbee -- --
Release -- -- -- 2023
Rating -- -- -- 8.2/10
Price -- -- -- $49
Category -- -- -- smart-home
Status -- -- -- Available

How We Rate Products

Every product on ComfyTechCheck is scored on a 1 to 10 scale based on a structured evaluation framework. We assess products across five core criteria:

  • Performance (30% weight): Speed, responsiveness, and real-world capability in its category.
  • Build & Design (20% weight): Material quality, ergonomics, and aesthetic appeal.
  • Features (20% weight): Breadth and usefulness of included functionality.
  • Value (20% weight): Price-to-performance ratio relative to direct competitors.
  • Battery Life or Reliability (10% weight): Endurance testing for portable devices, or long-term dependability for stationary gear.

Scores are assigned by our editorial team after hands-on testing or extensive research using verified user reports, expert analysis, and technical specifications. The weighted average produces the final rating you see on each review. This methodology is inspired by established consumer review standards from organizations such as Consumer Reports and Which?, adapted for the tech product categories we cover.

For a detailed breakdown of our full research and review process, visit our How We Rate page.

Technical Specifications

Display 2.4-inch color LCD, 320 x 240
Connectivity Wi-Fi 802.11 b/g/n, Bluetooth Low Energy, Thread, Matter-ready
Sensors Temperature, humidity, ambient light, proximity
Compatibility 95% of 24V heating/cooling systems
Power Battery or C-wire powered
Dimensions 3.3 x 3.3 x 1.1 in
Finishes Snow, Charcoal, Fog, Sand
Warranty 2-year limited