Short answer: Most smart locks unlock fine without WiFi — the network exists for management, not for opening the door. Power is the harder question, and the answer depends on which of three jobs inside the lock loses its supply. Vendor pages tend to compress all of this into a reassuring "don't worry," which is exactly why the confusion persists. This article gives you the uncompressed version: a three-layer model of what a smart lock actually needs, a matrix of the four dif

An NFC lock is an electronic lock that authenticates users through near-field communication (NFC) — a short-range wireless standard operating at 13.56 MHz over a range of roughly 4 cm (ISO/IEC 18092 and NFC Forum standards). Tap an NFC-enabled phone or card against the lock, the credential is verified, and the mechanism opens. Some designs go further: they carry no battery at all, drawing their operating power from the phone's NFC field itself. A lock with no battery, no wiri