There could be various reasons why your POWERbreathe Smart Adaptor has disconnected. Here are a few:

1. If your Smart Adaptor has a low battery it will cause the connection to become unstable or even disconnect. You will need to recharge your Smart Adaptor.

    2. There could be interference from other devices within 2.4GHz or 5GHz bands.

    3. You have too many apps open within your device, causing interruption to service. You will need to close unused apps.

    4. The distance between your mobile device and your POWERbreathe Smart Adaptor may be over 1 metre. To resolve this, try moving closer.

    5. Try restarting your device to clear memory cache built up.