Make sure to turn on the Smart Touch feature in the app to access all its functions, or turn your phone's Bluetooth off and on again to reconnect and turn on the feature again in app.Please note that Smart Touch function of the ring will automatically enter sleep mode after few hours of inactivity. To reactivate, please try one of the steps below:1) Long swipe and then double-click once in the touch area to resume using it.2) Switch off and then switch on the Smart Touch application to resume using it.