TP-Link's PalmKey Smart Door Lock works by scanning the veins in your palm. This potentially means better security, since it's harder to create a copy of the veins in someone's hands compared to snatching a fingerprint or imitating their face. Like fingerprints, palm vein patterns are distinct even among identical twins.

Tapo is the latest brand trying to let you open your front door with just a wave of your palm. The company announced the PalmKey smart door lock today, which lets you enter the house with a PIN, a fingerprint,

Tapo has announced a palm-scanning smart door lock at CES 2025. This smart lock also allows you to enter a PIN, of course, while it has a fingerprint scanner too, in case you pref