The best Prime Day 2026 smart home security deals on cameras, video doorbells, and smart locks from Ring, Arlo, eufy, Blink, ...

We've tested and reviewed products since 1936. Read CR's review of the Aqara Smart Lock U400 door lock to find out if it's ...

Can an ESP32 detect people without cameras or motion sensors? Discover how Wi-Fi signal disturbances, CSI, and smart DSP enable real-time occupancy and mov ...

While there is a time and place for wirelessly controlled devices, sometimes you want something you can just reach out and ...

I ditched smart locks, and I don't regret it.

NO PURCHASE NECESSARY TO ENTER OR WIN. A PURCHASE WILL NOT INCREASE YOUR CHANCES OF WINNING. VOID WHERE PROHIBITED. Readers' Choice Sweepstakes (the "Sweepstakes") is governed by these official rules ...