Google Nest Protect vs First Alert Onelink
We compare the Google Nest Protect and First Alert Onelink head-to-head on performance, features, value, and more. Here's which one wins.
First Alert Onelink
Scored 8.8/10 in our testing
Google Nest Protect
Split-spectrum sensor with app alerts and Pathlight
First Alert Onelink
HomeKit with voice alerts and 10-year battery
Score Breakdown
| Google Nest Protect | Category | First Alert Onelink |
|---|---|---|
| 8.8/10 | Performance | ✓ 9.6/10 |
| 8.7/10 | Features | ✓ 9.4/10 |
| 8.9/10 | Ease of Use | ✓ 9.1/10 |
| 8.4/10 | Value | ✓ 9.3/10 |
| 8.7/10 | Overall | ✓ 8.8/10 |
Specs Comparison
| Google Nest Protect | Spec | First Alert Onelink |
|---|---|---|
| See Amazon for full specs | Details | See Amazon for full specs |
Google Nest Protect
Pros
- + Compact blends into any room
- + OTA updates add features
- + Integrates with existing devices
Cons
- − App could use polish
First Alert Onelink
Pros
- + Automations work flawlessly
- + Works with Alexa Google HomeKit
- + Responsive intuitive app
Cons
- − Learning curve for advanced features
Our Verdict
Based on our scoring, the First Alert Onelink comes out on top with an overall score of 8.8/10. HomeKit with voice alerts and 10-year battery.
Buy the First Alert Onelink on AmazonRead the full Best Smart Smoke and CO Detectors 2026 guide for complete reviews of all 4 products.
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