Faster, More Refined Retrofit Performance At the heart of the combo, SwitchBot Lock Ultra Max upgrades an existing door lock from the inside without requiring users to replace the cylinder or modify the door. Its UltraDrive brushless motor reaches 160 rpm, delivering 3.2 times the motor rotation speed of SwitchBot Lock Ultra. Max Mode can complete unlocking in as little as 1.1 seconds, while more than 9 kg of turning force provides the power needed for everyday European lock mechanisms.[1] Users can choose Max Mode for a more immediate response or Quiet Mode for more discreet locking and unlocking during late-night arrivals, early mornings, and shared living situations. A high-precision magnetic encoder helps the lock track movement accurately, supporting smooth and consistent operation through frequent daily use. Performance is matched by a more premium industrial design. Lock Ultra Max combines an aluminum-alloy body with brushed electroplated stainless-steel detailing, while SwitchBot's Fluted Light Design creates subtle highlights and shadows across the surface. Together with a closely fitted base ring, the design helps the retrofit lock feel more integrated with the door rather than like a separate device added afterward. Up to 19 Ways to Unlock SwitchBot Keypad Vision Pro expands the combo into a multi-user entry system with 3D facial recognition, contactless palm vein recognition, fingerprint recognition, passcodes, and NFC card access. Across the complete system, households can choose from up to 19 unlock methods, including the SwitchBot App, remote control, voice control, smartwatch access, widgets, Home Sharing, Auto-Unlock via geofencing, a physical key, and SwitchBot Remote. For hands-free entry, Keypad Vision Pro projects more than 30,000 infrared points to create a millimeter-level 3D facial map and complete recognition in under one second under laboratory conditions. The depth-based system is designed to resist spoofing attempts using photos or videos and can