VerdictAI
#5 in Best Smart Thermostats

Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Obsidian

Best for

Best with remote sensors

Amazon rating

★★★★★4.4(2,219)

Amazon aggregate — one input among many in the Verdict Score

Verdict scoreGood
76/ 100

Current price

$229.99

Check price

Updated May 14, 2026 · 1 min read

Google Nest Learning Thermostat (4th gen) + Nest Temperature Sensor (2nd gen) - Obsidian

Synthesis sources

Methodology →
10reviewers read0 trusted6 mixed

The consensus

What reviewers found

Synthesized across the trust-weighted source mix below.

The 4th-gen Nest Learning Thermostat (bundled here with a 2nd-gen Temperature Sensor) draws the most polarized reviewer consensus in this pool. On the positive side, Consumer Reports (high-trust) draws a clear line between the 'real' Learning Nest and the cheaper Nest Thermostat, and r/googlehome first-impression posts call setup smooth and praise Matter support for the thermostat itself. The bundled remote sensor is the headline differentiator for multi-room homes.

What reviewers liked

  • Bundle includes a remote temperature sensor for multi-room averaging out of the box
  • Consumer Reports distinguishes it as a genuinely 'learning' thermostat, unlike the cheaper Nest
  • Matter support on the thermostat itself per r/googlehome
  • Premium industrial design widely praised across reviewers

Where it falls short

  • r/Nest users report the display is dim even at maximum brightness
  • r/smarthome flags a ~1.1°F temperature swing causing overshoot
  • Temperature sensors do not support Matter, only the thermostat itself
  • Locked to the Google Home app, which long-time Nest users on r/Nest criticize
  • No native Apple HomeKit support, unlike ecobee

Across the reviews

Synthesis · not our verdict

The 4th-gen Nest Learning Thermostat (bundled here with a 2nd-gen Temperature Sensor) draws the most polarized reviewer consensus in this pool. On the positive side, Consumer Reports (high-trust) draws a clear line between the 'real' Learning Nest and the cheaper Nest Thermostat, and r/googlehome first-impression posts call setup smooth and praise Matter support for the thermostat itself. The bundled remote sensor is the headline differentiator for multi-room homes.

The negatives, however, come from sources we weight heavily. r/Nest threads — including a widely-upvoted 'huge disappointment' post — flag poor display brightness even at 100%, and r/smarthome users (high-trust community) report a 1.1°F swing producing overshoot. r/googlehome notes the new thermostat supports Matter but the temperature sensors do not, which undercuts the bundle's main selling point for Matter/HomeKit users. Long-time Nest users on r/Nest also describe the learning feature itself as inconsistent and difficult to disable.

The synthesis: reviewers agree the hardware is the prettiest in the category and the remote-sensor ecosystem is unmatched outside ecobee, but the new generation has shipped with enough rough edges that high-trust community sentiment is meaningfully more critical than the Amazon star average suggests.

Key specs

Source: Amazon listing
Feature 1
Nest’s smartest, most advanced thermostat yet, the Google Nest Learning Thermostat (4th gen) is a beautiful, brilliant way to save energy, keep your home comfortable, and help make sure your heating and cooling systems are running smoothly[4]
Feature 2
Savings you can count on: The Nest Learning Thermostat can help save up to 31% on heating and cooling bills[2]
Feature 3
Improved compatibility: It works with most 24V systems, including gas, electric, oil, forced air, heat pump, and radiant, and no C wire is required for installation in most homes; visit the Nest Compatibility Checker for more info[5]
Feature 4
Easy control in the Google Home app: Adjust on your phone from anywhere[1] or by using your voice with Alexa, Siri, or Google Assistant smart speaker[3], it’s easy to install yourself and it’s Matter compatible for simple integration into your smart home[5]
Feature 5
Beautiful design: With a 60% larger display[11] and Dynamic Farsight, you can see info from across the room[1]; choose the design, like a clock or the weather; it automatically adjusts brightness for the best readability or you can adjust manually
Feature 6
Better visibility into adjustments: Asks for permission to make schedule changes to help you save energy; you'll receive notifications in the Google Home app, and you can view and accept changes with a tap[1]
Feature 7
Manage hot and cold spots: It comes with the Nest Temperature Sensor (2nd gen) and works with any Nest Temperature Sensor; put a sensor in any room and use the Google Home app to set the temp it should reach at a certain time of day
Feature 8
New natural heating and cooling: Your thermostat learns how the temperature outside affects the temperature inside (for example, when the sun coming through the windows will heat the house naturally) and pauses your system to help you save[1]

What customers say

2 verified voices
Matter support for the thermostat is terrific, but there's no support for the sensors. That's a huge miss. I have Starling, so I'll get support ...
Mixedvia r/googlehome
They're useful if you don't mind manually changing between them, but beyond that they're extremely limited for the price. I've had them for over ...
Mixedvia r/Nest

Trust tier reflects our editorial assessment of the source — not the individual quote. Hover for the rationale. See how we tier sources →

Video review

0 views

Google Nest Learning Thermostat (4th Gen) Review” · 6 Months Later

If the consensus convinced you

Check current price on Amazon

Pricing and availability change frequently. Tap through to confirm before buying.