Google · GA05169-US
Ready to buy
The retained reference is $279.99 regular U.S. direct price. Other finishes are cosmetic variants; extra sensors, Nest Pro work and any C-wire or equipment adapter are separate. Verify every terminal, transformer, stage, auxiliary transition, local control, account transfer and return or installer-service term before purchase.
Current market
Each line carries its own check date because price, software, specifications, and product cycle do not age at the same speed.
Other finishes are cosmetic variants; extra sensors, Nest Pro work and any C-wire or equipment adapter are separate. Confirm current stock, authorized U.S. seller, included hardware, tax, shipping, return rights and installation before paying.
The fourth-generation Learning Thermostat is the defended Google ecosystem choice when its compatibility checker confirms the exact equipment and learned schedule behavior is welcome.
Other paths
These are not generic competitors. Each one represents a different way to buy into the same market.
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What changed
Older observations stay in the ledger when the current view changes. That lets a buyer tell the difference between an old complaint, an active issue, and a problem that was corrected.
Nest Learning Thermostat, 4th gen was checked against exact identity and support, current U.S. price, topology, stages, power, heat-pump, sensors, app, offline, demand-response, installation, service and outcome boundaries, independent decision evidence and bounded owner or installer reports.
Each amount stays tied to its source and capture date. Conflicting prices remain visible until the seller resolves them.
Current reference priceA structured timeline will begin with the next source capture
Owner experience
Owner and installer discussion returns to c-wire behavior, learning, room-sensor schedules, heat-pump setup and google home rather than a universal comfort, savings or reliability result.
These are self-reported experiences from different HVAC equipment, wiring, transformers, zones, homes, climates, setpoints, tariffs, networks, firmware, apps, utility programs, installers and maintenance histories. They identify checks to run and do not establish comfort, savings, temperature accuracy, air quality, fault diagnosis, safety, freeze protection, reliability or failure rates.Owners discuss C-wire behavior, sensor scheduling, learned changes, heat pumps, Google Home and support. Reports do not establish population comfort, savings or failure rates.
Disable learning until every equipment mode and sensor priority is verified, then review every automatic setpoint change during the return window.
1 evidence recordSources
The page separates what a source states directly from what we conclude across sources.
Google identifies GA05169-US as google's premium conventional 24 V thermostat with a large display, learned schedules and one second-generation Nest Temperature Sensor.
$279.99 regular U.S. direct price was retained for GA05169-US. Other finishes are cosmetic variants; extra sensors, Nest Pro work and any C-wire or equipment adapter are separate
Conventional 24 V control for many forced-air, boiler and heat-pump systems; proprietary communicating, line-voltage and some complex accessory configurations require a different control path Google documents up to 3 heat/2 cool conventional and up to 2 heat/2 cool heat pump with auxiliary or emergency heat, subject to the exact terminal and system checker Heat-pump and dual-fuel eligibility depends on equipment, wires and Pro Setup; outdoor-temperature logic and auxiliary lockouts must be commissioned to the appliance manuals Designed for 24 V systems and may work without a C-wire in some cases, but continuous power can be required by equipment and usage; confirm with the checker and measured wiring One second-generation wireless temperature sensor is included for room prioritization and schedules; it cannot command dampers or make multiple HVAC zones
Google Home, account, app, presence sensing, location, voice integrations and usage history follow Google data controls and household-sharing choices The wall thermostat can continue basic setpoint and schedule control during internet loss; app, remote history, weather, voice, presence services and updates depend on connectivity Google's limited warranty and support terms apply. A premium display, learning feature or sensor cannot guarantee comfort, savings, equipment protection, freeze prevention or uninterrupted cloud service
Certified connected thermostats must retain basic thermostat operation without service-provider connectivity, support schedules and report energy-use information; certification is not a household comfort or savings guarantee.
EPA directs buyers to match HVAC type, voltage, wires, variable speed, stages and zoning before purchase and notes that line-voltage and complex systems often require specialized controls or professional installation.
Heat-pump performance depends on the complete equipment and controls; thermostat stage or app labels do not establish capacity, auxiliary-heat economics, dual-fuel operation or delivered comfort.
FTC consumer guidance covers router security, unique passwords, updates and privacy settings for connected devices; cloud convenience does not remove household security and access duties.
Hands-on review evaluates the exact fourth-generation display, sensor, Google Home setup, learning behavior and price.
Owners discuss C-wire behavior, sensor scheduling, learned changes, heat pumps, Google Home and support. Reports do not establish population comfort, savings or failure rates.
Smart Thermostat Premium is the premium conventional 24 v room-sensing control defended alternative at $259.99 current U.S. direct price.
Honeywell Home X8S Smart Thermostat is the large-display premium conventional control defended alternative at $219.99 current U.S. direct price.
Manufacturer identity, exact product or support documentation, current U.S. price, independent decision evidence and bounded owner or installer evidence were checked on August 19, 2026. This desk covers complete current U.S.-supported residential thermostat and HVAC-control systems where conventional low-voltage relays, proprietary communicating control, line-voltage electric heat, radiant-floor control or mini-split infrared retrofit materially changes the decision. It excludes bare sensors, faceplates, cosmetic finishes, multipacks, dealer software licenses, unsupported prior generations, portable-heater controls and smoke or carbon-monoxide life-safety alarms. Voltage, transformer, terminals, stages, heat-pump, auxiliary, emergency-heat, dual-fuel, proprietary-bus, accessory, zoning and sensor limits are exact-model facts. A room sensor can influence one equipment zone without creating duct zoning. Mini-split IR controllers can miss commands or lose state when the native remote is used and cannot override shared-outdoor-unit mode limits. Local wall control and stored schedules differ from app, voice, weather, geofence, history, firmware and demand-response services that require accounts, cloud and connectivity. Demand-response enrollment is voluntary and utility-specific. Turn off equipment power and use a qualified HVAC technician or electrician for uncertain low-voltage, communicating, dual-transformer, line-voltage, wet-area or multi-equipment work. Compressor delays, balance points, stage timing, O/B, fan, fuel and dual-fuel settings must match the equipment manual. Alerts, temperature, humidity, TVOC and CO2-equivalent readings are not equipment diagnosis, source identification, health diagnosis or safety clearance and do not replace smoke and CO alarms. No thermostat or control guarantees comfort, even rooms, energy savings, utility rewards, freeze protection, equipment life, fault prevention or uninterrupted service.
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