Which is better, Kidde Nighthawk or Google Nest Protect?

Based on our trust score analysis, Kidde Nighthawk scores 9.4/10 compared to Google Nest Protect at 9.0/10. Kidde Nighthawk ranks higher across expert reviews, user sentiment, and value metrics, making it the stronger choice overall.

What is the price difference between Kidde Nighthawk and Google Nest Protect?

Kidde Nighthawk is priced at $29.00 – $44.00 and Google Nest Protect is priced at $109.00 – $129.00. Google Nest Protect is the more expensive option at $109.00 – $129.00, while Kidde Nighthawk comes in at $29.00 – $44.00.

Is Google Nest Protect worth the extra money over Kidde Nighthawk?

Google Nest Protect ($109.00 – $129.00) has a value score of 8.2/10 compared to Kidde Nighthawk ($29.00 – $44.00) at 8.6/10. Kidde Nighthawk offers better value for money despite the lower price point.

Home / Carbon Monoxide Detectors / Kidde Nighthawk vs Google Nest Protect

Kidde Nighthawk vs Google Nest Protect

Name: Google Nest Protect
Brand: Google
Rating: 4.6 (1 reviews)

Head-to-head comparison based on trust scores, features, pricing, and real user feedback.

Our pick: Kidde Nighthawk (Trust Score 9.4 vs 9.0)

Kidde Nighthawk

Kidde

$29.00 – $44.00

9.4

Excellent

Best Overall

Pros

+Digital display shows CO levels
+Battery backup for outages
+Peak level memory

Cons

−Plug-in requires outlet placement
−No smart home connectivity

Don't buy if

⚠ The battery backup uses AA batteries that must be replaced annually; the detector will chirp incessantly when backup batteries are low.

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Google Nest Protect

Google

$109.00 – $129.00

9.0

Excellent

Best Value

Pros

+Voice alerts name danger type and location
+Split-Spectrum dual sensing
+Phone notifications and remote silence
+Voice alerts with specific danger type
+Automatic self-testing

Cons

−Most expensive CO detector
−Premium price per unit
−Requires Google Home ecosystem
−No Thread or Matter support

Don't buy if

⚠ The Nest Protect has a 10-year sealed battery lifespan; it cannot be battery-replaced and the entire unit must be discarded after 10 years.
⚠ The Nest Protect cannot be silenced from older Nest apps; ensure you use the Google Home app for full functionality.

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Score Comparison

Metric	Kidde Nighthawk	Google Nest Protect
Trust Score	9.4 ✓	9.0
Expert Score	9.3 ✓	8.8
User Sentiment	9.5 ✓	9.1
Value Score	8.6 ✓	8.2
Complaint Risk	8.5 ✓	8.7
Price	$29.00 – $44.00	$109.00 – $129.00

The Verdict

Kidde Nighthawk wins this comparison with a Trust Score of 9.4 vs 9.0. It's rated "Best Overall" and scores higher across the majority of our evaluation criteria. However, the Google Nest Protect may be a better fit depending on your specific priorities — check the pros and cons above.

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