Generally speaking, there is no need to turn off BPM after use. When there is no operation for 2 minutes, BPM will automatically enter a Standby / Calendar mode, which works with ultra-low power consumption. In this mode, BPM displays the data and time. If you already set reminder event(s), BPM can also be used as an alarm clock. If you do want to turn off the device, then press the Home button and hold for 5 seconds.