Winner
Price unavailable right now
Updated October 2026
Data from the official Google and YoLink sites.
2026 verdict
In this 2026 Google Nest Protect (Battery) vs YoLink Photoelectric Smoke Alarm comparison, Google Nest Protect (Battery) comes out ahead thanks to connectivity, integrations, and sensors.
Its strongest advantages show up in connectivity, integrations, and sensors, with alerts and Built-in light helping widen the gap. YoLink Photoelectric Smoke Alarm is still relevant if you care most about rating and battery life, but Google Nest Protect (Battery) is the stronger recommendation overall. For most setups, Google Nest Protect (Battery) is the smarter buy.
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| Feature | Google Nest Protect (Battery) | YoLink Photoelectric Smoke Alarm | Winner |
|---|---|---|---|
| Rating | 4.4 | 5.0 | YoLink Photoelectric Smoke Alarm |
| Battery Life | 2 years | 5 years | YoLink Photoelectric Smoke Alarm |
| Connectivity | 2.4 GHz WiFi, Bluetooth, Other | Other | Google Nest Protect (Battery) |
| Integrations | Google Home, Home Assistant | Home Assistant | Google Nest Protect (Battery) |
| Sensors | Smoke, CO, Occupancy, Temperature, Humidity, Ambient Light, Motion | Smoke | Google Nest Protect (Battery) |
| Alerts | Fire Alerts, CO Alerts, Low Battery Alerts | Fire Alerts, Low Battery Alerts | Google Nest Protect (Battery) |
| Built-in Light | YES | NO | Google Nest Protect (Battery) |
| Pathlight | YES | NO | Google Nest Protect (Battery) |
| Steam Check | YES | NO | Google Nest Protect (Battery) |
| Warranty | 2 years | 2 years | Tie |
| Screen | NO | NO | Tie |
| Built-in Siren | YES | YES | Tie |
Winner
Price unavailable right now
- + Connectivity: 2.4 GHz WiFi, Bluetooth, Other
- + Integrations: Google Home, Home Assistant
- + Sensors: Smoke, CO, Occupancy, Temperature, Humidity, Ambient Light, Motion
- - Rating: 4.4 vs 5.0
- - Battery Life: 2 years vs 5 years
$49.99
- + Rating: 5.0
- + Battery Life: 5 years
- - Connectivity: Other vs 2.4 GHz WiFi, Bluetooth, Other
- - Integrations: Home Assistant vs Google Home, Home Assistant
Frequently Asked Questions
Which is better overall: Google Nest Protect (Battery) or YoLink Photoelectric Smoke Alarm?
Google Nest Protect (Battery) has the stronger overall profile in this comparison, especially for connectivity, integrations, and sensors.
What is the biggest difference between Google Nest Protect (Battery) and YoLink Photoelectric Smoke Alarm?
Rating is one of the clearest differences: Google Nest Protect (Battery) lists 4.4, while YoLink Photoelectric Smoke Alarm lists 5.0.
Who should buy Google Nest Protect (Battery)?
Choose Google Nest Protect (Battery) if your priority is connectivity and integrations and that matters more than rating.
Who should buy YoLink Photoelectric Smoke Alarm?
Choose YoLink Photoelectric Smoke Alarm if your priority is rating and battery life and that matters more than connectivity.
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Compare all 27 Smoke & CO Detectors side by side
You are looking at two of them. The full table lines up all Smoke & CO Detectors in the catalog with the same specs, so you can filter by what you need and sort by price or rating.
- 27 Smoke & CO Detectors
- 44 specs compared
- 41 filters
- Smoke & CO Detectors
Photoelectric Smoke Alarm
- Smoke & CO Detectors
WiFi Smoke & CO Detector
- Smoke & CO Detectors
Nest Protect (Wired)
- Smoke & CO Detectors
Wi-Fi CO Alarm
- Smoke & CO Detectors
SC07-MR Smart Smoke & CO Alarm
- Smoke & CO Detectors
HS1SA-E Zigbee Smoke Alarm
- Smoke & CO Detectors
Nest Protect (Battery)
- Smoke & CO Detectors
Smart Smoke Detector
- Smoke & CO Detectors
Smoke Alarm
- Smoke & CO Detectors
XC0M-iR Smart Carbon Monoxide Alarm with Voice Alerts
- Smoke & CO Detectors
Smoke and CO Alarm HM-636THS
- Smoke & CO Detectors
Interconnected Smoke Alarm S1-R
- Smoke & CO Detectors
SD19-MN Interconnected Smart Smoke Alarm
- Smoke & CO Detectors
Matter Smoke Detector S1-TM
- Smoke & CO Detectors
Wi-Fi Smoke Alarm
- Smoke & CO Detectors
Smart Smoke & CO Detector with Ring
- Smoke & CO Detectors
Smoke Alarm HM-636PHS
- Smoke & CO Detectors
Smoke Alarm E10
- Smoke & CO Detectors
Interconnected CO Alarm C1-R
- Smoke & CO Detectors
SC5 Battery Smart Smoke & CO Alarm
- Cameras
Nest Cam (outdoor or indoor, battery)
- Cameras
Nest Cam Floodlight
- Cameras
Nest Cam Indoor (Wired, 3rd Gen)
- Cameras
Nest Cam Outdoor (Wired, 2nd Gen)
- Cameras
Nest Cam (indoor, wired)
- Displays
Nest Hub (2nd Gen)
- Displays
Nest Hub Max
- Doorbells
Nest Doorbell (battery)
- Doorbells
Nest Doorbell (wired, 3rd Gen)
- Doorbells
Nest Doorbell (wired, 2nd Gen)
- Door Locks
Nest x Yale Lock
- Routers
Nest WiFi Pro
- Smoke & CO Detectors
Nest Protect (Battery)
- Smoke & CO Detectors
Nest Protect (Wired)
- Speakers
Nest Audio
- Speakers
Nest Mini (2nd gen)
- Streaming Devices
TV Streamer (4K)
- Temperature & Humidity Sensors
Nest Temperature Sensor (2nd gen)
- Temperature & Humidity Sensors
Nest Temperature Sensor
- Thermostats
Nest Learning Thermostat (4th gen)
- Cameras
Uno
- Door & Window Sensors
LoRa Smart Outdoor Contact Sensor
- Door & Window Sensors
Solar Outdoor Door Sensor
- Hubs
Hub
- Motion Sensors
Indoor Motion Sensor RT
- Motion Sensors
LoRa 1/4 Mile Motion Sensor
- Plugs
Mini Plug
- Plugs
Smart Outdoor Energy Plug
- Smoke & CO Detectors
Photoelectric Smoke Alarm
- Temperature & Humidity Sensors
Smart Wireless Thermometer Hygrometer
- Water Leak Sensors
Water Leak Sensor 1
- Water Leak Sensors
Water Leak Sensor 4
- Water Shutoff Valves
FlowSmart All-in-One Water Meter & Shutoff
- Water Shutoff Valves
Valve Controller 2 with EVO Valve Operator
- Water Timers
Smart Sprinkler Timer