Truschi5 years ago+110Does anyone know if the vibration alarm is good enough to wake you up in the morning? Can you adjust the strength, or is it rather weak like on the 3?Show in original language (German)MondGsicht5 years ago+110 Helpful answerYes, the vibration alarm wakes me up every morning. You can't adjust the strength. It's about the same as the Charge 2 (didn't have the 3).Show in original language (German)Comment