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Two round Polished Obsidian thermostats with borderless displays and dial controls

Google

Google Nest Learning Thermostat 4th Gen 2-Pack Polished Obsidian

SKU CH-XZ5C-DEVMA

A learning thermostat with borderless display, smart scheduling and HVAC monitoring sold as a two-pack with temperature sensors

  • TypeLearning Thermostats
  • ColorPolished Obsidian
  • Color FamilyStainless Steel
  • Item Count2 pack
  • Size/DimensionsH : 2.08" , W : 2.08" , D : 1.1"
  • Control TypeDial, Manual, Phone Controlled
  • Learns your schedule to optimise comfort automatically
  • Borderless display shows key info from across the room
  • System Health Monitor alerts you to HVAC issues early
  • Smart ventilation brings fresh air when conditions are right
  • Energy Shift moves usage to cleaner or cheaper times

What this thermostat does and who it suits

This pack includes two fourth-generation Nest Learning Thermostats in Polished Obsidian plus two second-generation temperature sensors. They suit homeowners who want a self-programming schedule and room-level comfort control without daily manual adjustment.

Practical limits of the Wi-Fi interface

The thermostats connect over standard 24 V wiring and Wi-Fi, so they require a compatible heating and cooling system and a stable wireless network. Homes without a C-wire or with proprietary control boards may need professional assessment before installation.

The specification that decides fit

The 2.08-inch square borderless display with Dynamic Farsight shows target temperature, weather or a clock from across the room. If that screen size and glanceable information match your wall location, the kit is the right choice.

Highlights

  • Learns your schedule to optimise comfort automatically
  • Borderless display shows key info from across the room
  • System Health Monitor alerts you to HVAC issues early
  • Smart ventilation brings fresh air when conditions are right
  • Energy Shift moves usage to cleaner or cheaper times

Specifications

BrandGoogle
ModelNest Learning Thermostat (4th Gen)
TypeLearning Thermostats
ColorPolished Obsidian
Color FamilyStainless Steel
Item Count2 pack
Size/DimensionsH : 2.08" , W : 2.08" , D : 1.1"
Control TypeDial, Manual, Phone Controlled
Voltage24 V
WiFiYes
Connected Home ProtocolWi-Fi
Thermostat TypeHeating and Cooling
FeaturesBacklit Display, Battery Back-Up, Built-in Wi-Fi, Daylight Savings Time Ready, Lockable, Touch Screen, Vacation Mode

Questions about this item

Should I choose the single unit or the 2-pack for a multi-zone home?

The 2-pack includes two Nest Learning Thermostats and two 2nd Gen Temperature Sensors, letting you control separate zones and measure temperature in the rooms that matter most.

What does the 24 V requirement mean for my existing wiring?

It needs a standard low-voltage HVAC system with a common wire or compatible power adapter; most forced-air and heat-pump systems meet this.

What does the Wi-Fi connection actually let me do day to day?

It enables remote control from the Google Home app, automatic software updates, Energy Shift scheduling, and System Health Monitor alerts sent to your phone.

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