# Google Nest Learning Thermostat (4th gen)

*Google / GA05169-US, GA05171-US, GA05551-US, GA05557-US, GA05560-US, GJQ8U*

> The Nest Learning Thermostat (4th gen) is a Matter thermostat over Wi-Fi, but it is not a Thread border router. It comes with one Nest Temperature Sensor. It suits Google Home users, with native support through Matter over Wi-Fi.

- Canonical page: https://smarthomecanon.com/devices/google-nest-learning-thermostat-4th-gen
- Last checked: 2026-10-09

## Key facts

| Fact | Value |
| --- | --- |
| Brand | [Google](https://smarthomecanon.com/brands/google) |
| Category | Thermostat |
| Model numbers | GA05169-US, GA05171-US, GA05551-US, GA05557-US, GA05560-US, GJQ8U |
| Status | Current[^1] |
| Matter device type | withheld |
| Series | Learning Thermostat[^2] |
| Released | 2024-08-20[^3][^4][^5] |
| End of support | None announced[^6] |
| Wiring / base | 12-terminal base: up to 3 heat and 3 cool stages, heat pump with AUX, AUX2 and E, fan G, G2 and G3, C, RH, RC, HUM, DEHUM, VENT, plus AQ+ and AQ- terminals[^1][^3][^2] |
| C wire | Works with or without a C wire. In limited cases (under 1%), a C wire or Nest Power Connector may be necessary.[^1][^7] |
| Radio | withheld |
| Matter | withheld |
| Thread border router | unknown |
| Nest Temperature Sensor | Yes. One sensor is included, and you can add up to 6 per thermostat.[^8][^9] |
| Regions | withheld |

## Integration paths

**How the Google Nest Learning Thermostat (4th gen) connects**

| Path | Requires | Local | Features lost |
| --- | --- | --- | --- |
| [Matter / Wi-Fi](https://smarthomecanon.com/protocols/matter-wifi) | Wi-Fi network[^1] | unknown | unknown |

**Platform support for the Google Nest Learning Thermostat (4th gen)**

| Path | Platform | Support | Integration |
| --- | --- | --- | --- |
| Matter / Wi-Fi | [Google Home](https://smarthomecanon.com/platforms/google-home) | Native[^1] |  |

## Roles in a smart home

**Infrastructure roles**

| Role | Acts as one |
| --- | --- |
| Thread border router | No[^10] |

## Releases

**Google Nest Learning Thermostat (4th gen) release events**

| Date | Event | Detail |
| --- | --- | --- |
| 2024-08-06[^3] | Announced |  |
| 2024-08-20[^3] | Released |  |
| 2026-04-30[^5] | Firmware | 2.4; Matter bridge support for thermostat sensors |

## Related pages

- [Google Nest thermostats](https://smarthomecanon.com/lines/google-nest-thermostats) (line)
- [Google](https://smarthomecanon.com/brands/google) (brand)
- [Matter over Wi-Fi](https://smarthomecanon.com/protocols/matter-wifi) (protocol)
- [Google Home](https://smarthomecanon.com/platforms/google-home) (platform)

## Sources

[^1]: Google Store (US): Nest Learning Thermostat (4th gen) tech specs. https://store.google.com/us/product/nest_learning_thermostat_4th_gen_specs?hl=en-US (manufacturer, checked 2026-10-09)
[^2]: Google Nest Help: How to tell which Nest thermostat you have. https://support.google.com/googlenest/answer/9246551?hl=en (manufacturer, checked 2026-10-09)
[^3]: Google blog, 6 Aug 2024: The Nest Learning Thermostat is smarter and sleeker than ever. https://blog.google/products/google-nest/new-learning-thermostat/ (manufacturer, checked 2026-10-09)
[^4]: Google blog, 20 Aug 2024: 9 new things about the Nest Learning Thermostat. https://blog.google/products/google-nest/nest-learning-thermostat-on-shelf/ (manufacturer, checked 2026-10-09)
[^5]: Google Nest Help: Nest thermostat software update history. https://support.google.com/googlenest/answer/9263516?hl=en (manufacturer, checked 2026-10-09)
[^6]: Google Nest Help: End of support for Nest Learning Thermostats (1st & 2nd gen). https://support.google.com/googlenest/answer/16233096?hl=en (manufacturer, checked 2026-10-09)
[^7]: Google Nest Help: Nest thermostat technical specifications. https://support.google.com/googlenest/answer/9230098 (manufacturer, checked 2026-10-09)
[^8]: Google Store (US): Nest Learning Thermostat (4th gen) overview, compare table and FAQ. https://store.google.com/us/product/nest_learning_thermostat_4th_gen?hl=en-US (manufacturer, checked 2026-10-09)
[^9]: Google Store (US): Nest Temperature Sensor (2nd gen) specs and compatibility. https://store.google.com/us/product/nest_temperature_sensor_2nd_gen?hl=en-US (manufacturer, checked 2026-10-09)
[^10]: Google Nest Help: How Google products use Thread in a smart home. https://support.google.com/googlenest/answer/9249088?hl=en (manufacturer, checked 2026-10-09)