The Sfw Smart Padlock features a zinc alloy body and a capacitive fingerprint sensor. Communication is facilitated through a Bluetooth 4.2/5.0 stack, while charging is handled via a micro-USB port. The internal power source is a 150-300mAh Li-Po battery. Technical analysis indicates that the non-sealed charging port may compromise the nominal IP65 environmental rating over time.
Performance metrics reveal a sensitivity to moisture and temperature on the biometric sensor surface, and the low-torque motor assembly may struggle to overcome shackle friction. There is no provision for a physical key override. The device is cloud-dependent for initial setup and lacks support for Matter or other local-only communication standards.
Users seeking a portable lock with a mandatory physical safety backup should consider a biometric padlock with key backup to mitigate electronic failure risks.
This hardware is situated in the biometric padlock classification.
