Summary

• Facial recognition has moved from novelty to a marketed home-security feature in smart locks.
• Most products emphasize on-device processing and local biometric storage to reduce cloud exposure.
• Vendors frame depth sensing, infrared mapping, and liveness checks as defenses against simple spoofing.
• Biometric convenience comes with a durable privacy problem: face and palm data are hard to revoke or replace after compromise.
• Several devices bundle face recognition with fallback methods such as PINs, fingerprints, NFC, and physical keys.
• The same product category now includes face, palm-vein, and fingerprint options, suggesting a broader biometric access shift rather than a single-method trend.
• The evidence is concentrated in a small set of consumer products, so the signal is strong but narrowly focused on home access hardware.