What is the Nest 3rd Generation Learning Thermostat?
The Nest 3rd Generation Learning Thermostat is a Wi-Fi smart thermostat with a 2.08 inch display that learns your heating and cooling habits and builds a schedule from them. In Dubai it costs 730 AED, which is 80 AED less than the 4th Gen at 810 AED.
It is the model that made the category. Turn the ring, pick a temperature, and keep doing it for a week. It remembers. Google lists it as ENERGY STAR certified, and the display is readable from across the room thanks to Farsight, so you can check the temperature without walking up to the wall.
Newer is not always better for your wall, your wiring or your budget. This model still does the one job that matters, and it does it for less.
Key features
Learns and builds a schedule
It watches your changes and turns them into a program. You correct it when it gets something wrong, and it adjusts. That is the whole interface.
Farsight display
The 24-bit colour LCD is 2.08 inches across at 480 × 480 pixels. When you walk into the room, the sensors wake it and it shows the temperature large enough to read from a distance.
Voice and app control
Control it from the Google Home app or the Nest app. Google’s spec sheet says it works with Hey Google and Alexa.
Works with a room sensor
Google lists compatibility with the Nest Temperature Sensor, which helps in villas where the hallway and the bedroom tell different stories.
Specifications
| Model | Nest Learning Thermostat (3rd generation) |
|---|---|
| Display | 24-bit colour LCD, 480 × 480 pixels, 2.08 inch (5.3 cm) diameter |
| Sensors | Temperature, humidity, near-field and far-field activity, ambient light |
| Wireless | Wi-Fi 802.11b/g/n at 2.4 GHz and 5 GHz, 802.15.4, Bluetooth Low Energy |
| Power | Built-in rechargeable lithium-ion battery, under 1 kWh per month |
| System compatibility | 95% of 24V heating and cooling systems. Cooling: 1 and 2 stages. Heating: 1, 2 and 3 stages. |
| Not compatible with | Line voltage and millivolt systems |
| Control | Google Home app or Nest app. Works with Hey Google and Alexa. |
| Certification | ENERGY STAR |
| Price in Dubai | 730 AED |
Specifications follow Google’s published spec sheets. Local price and availability are ours.
3rd Gen or 4th Gen: where the 80 AED goes
| 3rd Gen (730 AED) | 4th Gen (810 AED) | |
|---|---|---|
| Display | 2.08 inch, 480 × 480 | 2.7 inch, 600 × 600 |
| Presence sensing | Near-field and far-field sensors | Soli Motion Sense |
| Smart home | Hey Google and Alexa listed | Google Home and Matter listed |
| C wire | Some systems without a C wire are not compatible | Designed to work with or without; under 1% may need one |
If the bigger display, Motion Sense and Matter matter to you, the 4th Gen is worth the extra. If you want a proven learning thermostat for less, this one is a fair choice. Read our full 3rd Gen vs 4th Gen comparison.
Will it work in your Dubai home?
This is where the 3rd Gen needs the most care. Google states it is only compatible with low-voltage 24V systems, not line voltage or millivolt. That rules out the fan coil units that run on 230V, and most ductless split ACs have no thermostat wire at all.
Wiring matters too. Retail listings note that some systems without a common wire are not compatible, and Google sells the Nest Power Connector as a C-wire substitute that attaches at the furnace, air handler or zone controller. Send us a photo of your wiring and we will tell you which camp you are in. Our installation guide has the full checklist.
Who should buy it
- You want a learning thermostat and have a 24V system.
- You prefer a smaller, classic dial design.
- You already use Alexa or Hey Google.
Look at the 4th Gen instead if you want Matter, the larger display or the easiest power requirements.
Living with it: the first week
Do not set it and forget it on day one. Use the ring the way you normally would. Turn it down when you go to bed, up when you wake, and let it watch. By the end of the week it starts proposing a schedule. Correct it where it guesses wrong. Within a couple of weeks most households stop touching it.
Two things speed the learning. Be consistent, because random changes teach it nothing. And do not set extreme numbers, because it will learn those too.
Using it through a UAE summer
A learning thermostat suits a house that empties out during the day. It notices the empty hours and eases off, then brings the temperature back before you return. Use a sensible away setting, not a switched-off AC, because a house that has soaked up 45°C of heat takes a long time to recover. And skip the 16°C habit. An AC does not cool faster because you asked for a lower number.
If bedrooms sit far from the hallway, the 3rd Gen works with the Nest Temperature Sensor, or you can step up to the 4th Gen sensor bundle.
Is the 3rd Gen still worth buying?
Honest answer: yes for the right buyer, no for the wrong one. It is an older design, and it is a learning thermostat that has been doing its job for years. It is a good deal when your system is a straightforward 24V setup and you want learning without paying for the newest hardware.
It is the wrong buy if your wiring has no common wire and you want the easiest install, or if you want Matter support. In both cases, the 4th Gen fits better. Not sure? Send us a photo.
Where to mount it
Use an interior wall at about eye level. Keep it out of direct sun and away from kitchen heat, doors to the balcony and the AC outlet. The thermostat controls the house based on what it feels at that spot, so a bad location means a badly cooled home.
Installation and setup
We confirm compatibility from your wiring photo, switch the power off at the breaker, label every wire, fit the base and display, then test cooling and fan control. After that we connect the thermostat to your Wi-Fi and add it to the Google Home app or the Nest app. Straightforward 24V swaps are usually quick, and we confirm timing once we have seen your wiring. See the full installation guide.
Why buy from Nest Thermostats Dubai
We are based at Dubai Investment Park and sell and install Nest thermostats for homes and offices across the UAE. Message us on WhatsApp, call or email, Monday to Saturday, 9:00 AM to 9:00 PM. A real person replies, and usually it is the same person who will do your installation.
Our rule is simple: we check your wiring before you order, so you do not buy a thermostat that will not fit. Technical details on this page come from Google’s published specifications. The advice on Dubai homes comes from our installation work. Reviewed on 11 October 2026.
Nest 3rd Generation Learning Thermostat: frequently asked questions
How much is the Nest 3rd Generation Learning Thermostat in Dubai?
It costs 730 AED in Dubai. Ask us on WhatsApp for current stock, finishes, delivery and an installation quote.
Does the Nest 3rd Gen learn my schedule?
Yes. It learns the temperatures you set and builds a heating and cooling schedule around your routine. You can correct it, and it adjusts.
Does it work with Alexa and Google Assistant?
Google's spec sheet lists voice control with Hey Google and Alexa. You can also use the Google Home app or the Nest app.
What is the difference between the 3rd Gen and 4th Gen?
The 4th Gen has a larger 2.7 inch display, Soli Motion Sense, and Matter support, and Google designed it to work with or without a C wire. The 3rd Gen costs 80 AED less in our store.
Will it work with my AC in Dubai?
It works with 24V systems. It usually does not suit ductless split ACs run by a remote, or fan coil units that run on 230V line voltage. Send a photo of your current thermostat and its wiring on WhatsApp and we will check before you buy.
Do I need a C wire?
Some systems without a common wire are not compatible with this model. Google sells the Nest Power Connector as a C-wire substitute. We review your wiring photo before you order.
Is it ENERGY STAR certified?
Yes. Google lists the Nest Learning Thermostat as ENERGY STAR certified.
Do you install it, and what about delivery and warranty?
Yes. Our team installs the thermostat and connects it to your Wi-Fi and Google Home. Message us on WhatsApp for current delivery and warranty terms.
