SwitchBot Lock Ultra - Smart door lock, Black

The SwitchBot Lock Ultra Smart Lock – Black is an electronic smart lock designed to add keyless access to compatible residential doors without replacing the existing lock cylinder. It fits up to 99.9% of doors and works with most deadbolts, Jimmy Proof locks, and mortise locks when paired with the appropriate adapter. The lock is battery-powered, with up to nine months of operation between charges. It supports five unlocking methods and can also be managed through a smartphone app for remote convenience.

The housing is made from ABS, aluminium, and polycarbonate, and the unit weighs 367 g. Communication uses Bluetooth rather than Wi-Fi, so a hub is required for remote access beyond Bluetooth range. The lock integrates with Amazon Alexa and Google Assistant for voice control. Automatic locking secures the door when you leave, and installation is designed to be non-destructive, with a mounting plate included. The device is intended for indoor residential door installation, as it has no weatherproof or waterproof rating.

• Three 18350 rechargeable batteries with a combined capacity of 4,200 mAh — provides extended operation on a single charge cycle
• 0.3-second motor response time — engages or releases the lock without noticeable delay
• Six-layer security system with tamper alerts — monitors lock status in real time and warns of physical interference
• Fingerprint, NFC, voice control, smartwatch, and automatic unlocking — five distinct access methods for flexible keyless entry
• Wall-mountable design — attaches directly to existing door hardware without replacing the lock cylinder
• Quiet motor operation — minimises audible disruption during locking cycles