THE ALL NEW FITBIT CHARGE 4 Battery Life: Up to 7 days Compatibility: Works with iOS & Android Built-in GPS: With built-in GPS, leave your phone behind and explore the outdoors with pace and distance on your tracker and see a workout intensity map showing your route and effort in the app when you’re done. Active Zone Minutes: This feature alerts you to which heart rate zone you’re in so you can see if you’re working hard enough to reach your goals. Sleep Stages & Score: Charge 4 tracks your time in light, deep and REM sleep stages and gives you a n ightly Sleep Score in the Fitbit app, so you can better understand your sleep quality and work toward better rest. 280 entries - 5 letters - 56 in each 99p an entry For free entry see t&c's Good Luck *If all of the tickets the competitions does not sell out by the time the countdown timer reaches zero, an additional 7 days will be added on to the countdown timer. If all of the tickets have not sold after the first extended time period, a 7 day extension will be added up to a maximum of 4 times. If all tickets have not been sold after 4 extensions of 7 days, a cash alternative prize of 70% of tickets sales will be awarded to the winner instead of the prize.