Kidde Smart Smoke & CO Detector with Ring vs X-Sense WiFi Smoke & CO Detector

What owners say

Owners of both alarms like having smoke and carbon monoxide in one unit and getting alerts on a phone, and both groups describe a loud siren. Kidde Smart Smoke & CO Detector with Ring owners single out how quickly it pairs with a Ring Alarm setup, free alerts and status in the app, the end of middle-of-the-night low-battery chirps and interconnect across the house, with many coming from a Nest Protect, while they note the missing night light, a price that feels high, a rare unexplained false alarm and the paid Ring plan needed for 24/7 professional monitoring. X-Sense WiFi Smoke & CO Detector owners single out easy installation, an LCD that is easy to read, real-time Wi-Fi alerts and fast warranty replacements, and they mention its size, a bracket that is awkward to level and the lack of automatic self-test.