Best Smart Smoke & CO Detectors 2026
Table of Contents
Best best smart smoke detector 2026 picks for 2026.
| Product | Price | Rating | Highlight | Buy |
|---|---|---|---|---|
| Google Nest Protect 2nd Gen | $119.00 | ★★★★ 4.5 | Smoke + CO | Check Price |
| First Alert Onelink Safe & Sound | $99.99 | ★★★★ 4.2 | Smoke + CO | Check Price |
| X-Sense Smart Smoke Detector | $39.99 | ★★★★ 4.4 | WiFi connected | Check Price |
| Kidde Smart Smoke + CO Alarm | $49.99 | ★★★★ 4.3 | Smoke + CO | Check Price |
| Ring Alarm Smoke & CO Listener | $34.99 | ★★★★ 4.1 | Listens to existing alarms | Check Price |
Google Nest Protect 2nd Gen
★★★★ 4.5/5
$119.00
Key Features
- Smoke + CO
- App alerts
- Pathlight night light
Pros
- Phone alerts when you’re away
- Pathlight lights your way at night
Cons
- Expensive — $119 per unit
First Alert Onelink Safe & Sound
★★★★ 4.2/5
$99.99
Key Features
- Smoke + CO
- Alexa built-in
- Bluetooth speaker
Pros
- Alexa speaker built into smoke detector
- AirPlay 2 compatible
Cons
- Speaker quality mediocre
X-Sense Smart Smoke Detector
★★★★ 4.4/5
$39.99
Key Features
- WiFi connected
- App alerts
- 10-year battery
Pros
- Under $40 with WiFi alerts
- 10-year sealed battery
Cons
- Smoke only — no CO
Kidde Smart Smoke + CO Alarm
★★★★ 4.3/5
$49.99
Key Features
- Smoke + CO
- WiFi
- Interconnects wirelessly
Pros
- Wirelessly links to other Kidde alarms
- Under $50 — good value
Cons
- App less polished than Nest
Ring Alarm Smoke & CO Listener
★★★★ 4.1/5
$34.99
Key Features
- Listens to existing alarms
- Ring integration
- No rewiring
Pros
- Works with existing dumb detectors
- Ring ecosystem integration
Cons
- Doesn’t detect — just listens
Buying Guide
Top pick: Google Nest Protect 2nd Gen. Budget: Ring Alarm Smoke & CO Listener at $34.99.
FAQ
Best smart smoke detector?
Google Nest Protect 2nd Gen.
Verdict
Best: Google Nest Protect 2nd Gen — $119.00. Value: Ring Alarm Smoke & CO Listener — $34.99.