Fitbit Charge 3
28.80 mm
Question about Fitbit Charge 3
"How to switch from Charge 2 to Charge 3? Bought a new Charge 3 but the thing won't set up."
Strange... If you connect the device to the Fitbit app via Bluetooth, you should be able to select your new Charge 3 automatically. You could even switch back and forth between the old and new Charge. I assume the watch battery is fully charged and Blutooth is enabled on the phone...? Maybe you still need to update the Fitbit app first...?