We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Round thermostat with polished obsidian finish and matching remote sensor

Google

Google Nest Learning Thermostat GA05169-US with Temperature Sensor 2nd Gen Polished Obsidian

SKU CH-GW3D-Y17J5 MPN GA05169-US

Learns your schedule to automatically adjust heating and cooling, includes a remote sensor for multi-room comfort, and connects via 2.4 and 5.0 GHz Wi-Fi for app and voice control

  • TypeThermostat
  • ColorPolished Obsidian
  • FeaturesSchedule,Adaptive Eco, Seasonal Savings, Natural heating and
  • Learns your schedule automatically to save energy
  • Remote sensor balances temperature in the room that matters
  • Voice control works with Google Assistant and Alexa
  • Adjust settings from anywhere using the Nest app
  • Connects on 2.4 and 5.0 GHz Wi-Fi bands

Smart learning thermostat with remote sensor

The Google Nest Learning Thermostat (4th Gen) paired with the Nest Temperature Sensor (2nd Gen) in Polished Obsidian learns your heating and cooling preferences to build an automatic schedule. It adjusts the temperature based on your routine and uses Adaptive Eco to save energy while keeping you comfortable. Compatible with Google Assistant, Amazon Alexa, and the Nest app, it offers voice and app control from anywhere.

Sustained comfort across multiple zones

The included remote sensor monitors temperature in a specific room, allowing the thermostat to prioritise comfort where you spend time rather than only at the hallway wall. Seasonal Savings and Natural heating and cooling features make gradual adjustments over weeks and months to reduce energy use without sudden swings. Smart ventilation support works with compatible systems to refresh air when outdoor conditions allow.

Polished Obsidian finish for modern interiors

The thermostat features a sleek Polished Obsidian colour that suits contemporary decor while housing a touch-screen interface for local adjustments. Connectivity relies on 2.4 GHz and 5.0 GHz Wi-Fi plus Bluetooth for reliable communication with the sensor and your phone. Buyers who need a thermostat without a remote sensor or who require a different aesthetic finish should consider other models.

Highlights

  • Learns your schedule automatically to save energy
  • Remote sensor balances temperature in the room that matters
  • Voice control works with Google Assistant and Alexa
  • Adjust settings from anywhere using the Nest app
  • Connects on 2.4 and 5.0 GHz Wi-Fi bands

Specifications

BrandGoogle
ModelGA05551-US
TypeThermostat
ColorPolished Obsidian
FeaturesSchedule,Adaptive Eco, Seasonal Savings, Natural heating and cooling, Smart ventilation

Questions about this item

How much heat or noise does the Polished Obsidian thermostat produce when running continuously?

The Nest Learning Thermostat has no fan or moving parts, so it runs silently and adds negligible heat to the room.

What existing wiring or system must I already have for the GA05169-US to work?

It connects to standard low-voltage HVAC control wires and requires a Wi-Fi network on 2.4 or 5.0 GHz plus the Nest app on a phone or computer.

Will the included 2nd Gen Temperature Sensor work alongside my older Nest thermostats?

The sensor pairs with this 4th Gen thermostat via Bluetooth; it is not designed to link directly to earlier Nest models.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.