Product code: 557990 Get your fitness journey back on track with the Fitbit Charge 6. It has a whopping7 days of battery lifeso you can track an entire weeks' worth of data without running out of juice. Even when you're asleep, your Fitbit is monitoring yourheart rate,blood oxygen,skin temperatureand more, for a well-rounded overview of your health. With adaily sleep score, you'll be able to tell how soundly your slept which means you can improve your health from all angles. Good to know - See how you're dealing with day to day stressors with the daily personalisedstress management score - Check yourheart ratewhen working out to see if you're in fat burn, cardio or peak zones - You'll be notified of anyirregular heart rhythmsthat can be signs of atrial fibrillation - Tracksteps, distance and calories, and see how long you're staying in theactive zone - Choose from40 exercise modes, andSmartTrackstarts tracking automatically - Thewater resistancemeans you can swim, sweat or get caught in a downpour without worrying