Green Energy Helps
Written by Wilson Yeo on November 20, 2021 
in ,
Last updated: 26/04/2024

Nest 3rd Generation Learning Thermostat Review

Last updated on April 26th, 2024 at 01:05 pm

Nest 3rd Generation learning thermostat
Image from Amazon

The Nest 3rd generation learning thermostat is one of the latest under the Google Nest thermostat series. This thermostat has been proven in studies to help in savings in utilities.

In line with my aim for this website, below is my review for this green product.

Benefits of Owning a Nest 3rd Generation Learning Thermostat

Well-designed aesthetic

Polished steel body that comes in seven selectable colours; white, black, copper, polished steel, mirror black and brass. Comes with a matching trim plate for installation for covering any imperfections left from the previous thermostat.

Easy installation

Installation can be done by yourself in 30 minutes or less. Tell Nest what is your system; “System Match” function will switch on the features that suit your environment. The Nest learning thermostat is compatible with 95% of heating and cooling systems.


In-built “Farsight” motion sensor can pick up your presence across the room and light up its display to show you the time, temperature or weather. Together with the “Early-On” function, the Nest thermostat can start heating or cooling early for your home to reach the scheduled temperature on time.

Match your life-style

Program your desired temperature settings for different parts of the day to help you save money. Subsequently, the “Auto-Schedule” function will automatically generate a weekly schedule based on your desired timings.

The Nest thermostat utilises either motion or phone location data to determine your presence at home. Once you are away, it will turns itself down automatically to avoid heating or cooling an empty home.

Remote control

Connect your Google Nest Thermostat to Wi-Fi for control of your temperature schedule via your computer or smart phone via the free downloadable Nest app.

Helps you save energy

Nest leaf icon will appear when a energy-saving temperature setting is selected guiding you in the right direction.

Energy-star product

First thermostat to be Energy Star certified by the EPA.

Summary of Specifications for Nest Learning Thermostat

Colour7 colours available: Stainless Steel, White, Black, Copper, Polished Steel, Mirror Black, Brass
DimensionsMain unit
- Mass: 7.25 oz (205.4 g)
- Diameter: 3.3 in (8.4 cm)
- Height: 1.06 in (2.69 cm)

- Mass: 1.35 oz (38.3 g)
- Diameter: 3 in (7.6 cm)
- Height: 0.42 in (1.1 cm)

- Mass: 8.6 oz (243.7 g)
- Diameter: 3.3 in (8.4 cm)
- Height: 1.21 in (3.08 cm)
Display24-bit color LCD
480 x 480 resolution
2.08 in (5.3 cm)
Installation modeIndoors
Power source Built-in rechargeable lithium-ion
Power consumptionLess than 1 kWh per month
Remote control requirements• Internet access with Wi-Fi connection
• Nest app/ account on phone or
tablet with iOS or Android
• Latest version of Safari, Chrome,
Firefox or Internet Explorer on
Mac OS X v10.9 or later and
Windows 7 or later
Warranty2-year limited warranty.
For help, visit Nest support team is also available by
phone 24/7.
Others Wireless
• Working Wi-Fi connection:
802.11b/g/n @ 2.4GHz, 5GHz
• Wireless interconnect:
802.15.4 @ 2.4GHz
• Bluetooth Low Energy (BLE)

How does the Nest 3rd Generation Learning Thermostat rate on popular websites?


32706 customers at Amazon gave it an average rating of 4.6/5.0. Out of 32706 customers, 26258 customers gave it the maximum rating of 5.0/5.0.

Home Depot

13305 customers at Home Depot gave it an average rating of 4.8/5.0. Out of 13305 customers, 11592 customers gave it the maximum rating of 5.0/5.0.


10646 customers at Lowe's gave it an average rating of 4.9/5.0. Out of 10646 customers, 9655 customers gave it the maximum rating of 5.0/5.0.

Customer Reviews on Nest 3rd Generation Learning Thermostat

I have read reviews for this Nest learning thermostat from customers and summarised them below.

The Pros

Ease of installation for this Nest learning thermostat is a common feedback. Another related comment is also the well-designed aesthetic of this product. Another good point mentioned include its easy to use, intuitive software interface. The smooth mobile app interface is also a mentioned advantage by customers.   

Users have also reported actual energy savings upon installation of this Google Nest  thermostat. This is shown by a series of tests carried and summarised in this report conducted by Bonneville Power Administration & Franklin Public Utility District.

The Cons

Activation of programmed settings by the phone proximity and motion sensor are mentioned to be not suitable for areas with wide temperatures fluctuations or households with prolonged absence of occupants. During the period, where the Nest thermostat starts up, the occupant has to endure the warm/cold threshold temperature. Another possible issue arises from old houses where the thermostat is installed at out of the way location like the end of a hall.

The “Home/Away Assist” function has a non-programmable and unknown countdown timer before the Nest thermostat transits from the settings (with occupants) to eco-mode settings (no occupants). This might make its transition difficult to predict and inconvenient for short trips out of the apartment.

There is an issue with the remote connectivity of this Nest thermostat mentioned by some owners due to a faulty Wi-Fi chip with an error code of "w5". There is a series of troubleshooting steps posted on the help page. However, if these steps fail, reach out to Google's customer support for a replacement. 

Product guide and information


Nest Pros offer their customers a warranty extension on the Google Nest Thermostat, Google Nest Thermostat E, and 3rd gen Google Nest Learning Thermostat. This extended warranty is only valid for thermostats sold and installed by Nest Pros in the US and Canada.

For Nest thermostat models purchased from Google or an authorized reseller, a standard warranty is provided:

  • Nest Thermostat: a standard one-year warranty
  • Nest Thermostat E: a standard one-year warranty
  • 3rd gen The Nest Learning Thermostat: a standard two-year warranty

For Nest Thermostat purchased and installed by a Nest Pro, an extended Pro Warranty is offered:

  • Nest Thermostat: 2 years of additional coverage for a total of 3 years
  • Nest Thermostat E: 2 years of additional coverage for a total of 3 years
  • 3rd gen Nest Learning Thermostat: 3 years of additional coverage for a total of 5 years.

More information on the individual warranties can be found at the Google support site.


Specifications Sheet (PDF)
Installation Guide (PDF)

Best Deals for Nest 3rd Generation Learning Thermostat

During my research for this review, I also compared prizes among online websites that carry this thermostat as part of its product range. I found out that Amazon consistently offers a lower prize for this Google Nest thermostat with ready stock.

So to enjoy the best prizes for this thermostat, click here: Best Deals for Nest 3rd Generation Learning Thermostat


  • Wilson Yeo

    I am the admin of Green Energy Helps and I possess a keen interest in how green energy and leading a green lifestyle can help to reduce our individual carbon footprints. I will be providing information about green energy and lifestyle tips with unbiased reviews on green products for your consideration. Note: This website uses affiliate links which may earn a commission for purchases made at no additional cost to you.

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