We can use Apple Watch to access the SwitchBot Lock. It requires Apple Watch Series 2 and a newer model to be compatible with this function. The operating system should be above WatchOS 4.0.
When we are within the Bluetooth range of the Lock, we can control it directly.
When we are out of the Bluetooth range, we can also control it remotely, which requires a SwitchBot Hub connected to the account and the Cloud Service of the Lock has been enabled.