The Aqara Smart Lock U200 supports Apple Home Key and enables unlocking by approaching with an iPhone or Apple Watch (NFC). Various unlocking methods such as number combination, NFC key card, smartphone and fingerprint offer security. Temporary passwords can be created for guests. Seamless integration into smart home systems, compatible with the Aqara video doorbell, enables door opening via app or voice control ("Alexa, open the door"). The U200 locks and unlocks quietly and automatically, with automatic locking when leaving the house. The IPX5 certification ensures reliable function at temperatures from -15 °C to 66 °C. The Aqara Smart Lock U200 supports Apple Home Key and enables unlocking by approaching with an iPhone or Apple Watch (NFC). The supplied battery can be charged during operation to ensure uninterrupted functionality.