My Sense less than 2 weeks old (replacement for Ionic after product recall) & repeated problems syncing. Now iPhone doesn't even detect it in spite of trying all recommendations. Initially I had to restart watch each morning then it would sync but now my iPhone Bluetooth is just not picking it up.
Hello @Alegre your Sense being a Low Energy Bluetooth Device will not be detected by your phonrs Bluetooth.
This function is handled by the Fitbit App.
Along with the steps mentioned here, many users have found clearing the fitbit apps cache fixes this issue. We also) ace a thread on the iOS board