SWITCHBOT Lock Ultra - Smart Lock, Silver

The SwitchBot Lock Ultra Smart Lock – Silver is a keyless smart lock that mounts over an existing door lock without requiring a full replacement. It runs on three 18350 rechargeable lithium batteries with a combined 4,200 mAh capacity, delivering up to nine months of operation between charges. The lock fits 99.9% of residential doors, including single-cylinder deadbolts, jimmy-proof locks, and mortise locks, using an included adapter where required. Automatic locking secures the door once you leave without manual intervention.

This lock is not weatherproof, restricting installation to indoor or sheltered residential doors. It measures 122 mm tall, 62.6 mm wide, and 66.8 mm deep, weighing 367 grams. Connectivity is Bluetooth-only, pairing directly with a smartphone rather than relying on a Wi-Fi network. The lock works with Amazon Alexa, Google Assistant, and Apple Home via Matter when paired with a SwitchBot Hub. Mounting brackets and a kit are included for straightforward installation over existing door hardware.

• Six-layer security system — helps protect against unauthorised access and tampering
• Motor unlocks in approximately 0.3 seconds — quiet operation for entryway settings
• Expandable access methods — supports fingerprint, NFC, voice, or smartwatch control through the SwitchBot ecosystem
• Smartphone and tablet remote support — monitor lock status and configure settings from a paired mobile device
• Rechargeable lithium battery technology — cells recharge rather than requiring disposable replacements