Fitbit Charge 4 Advanced

About this item This fits your . Make sure this fits by entering your model number. P.when(“ReplacementPartsBulletLoader”).execute(function(module){ module.initializeDPX(); }) Battery Life: Up to 7 days Compatibility: Compatible with iOS 12.2 or higher & Android OS 7.0 or higher 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 nightly Sleep Score in the Fitbit app so you can better understand your sleep quality and work toward better rest Notifications & Apps: Stay connected with call calendar and smartphone app alerts text notifications and convenient apps like weather and timer Plus send quick replies to messages (Android only) Available when phone is nearby 24/7 Heart Rate: Use 24/7 heart rate to better track calorie burn optimise workouts and uncover personalised health trends that inspire you to make moves on your health and fitness goals To support you during this difficult time, we’re offering a 90-day free trial of Premium to help you stay active, sleep well and manage stress. Unlock it all in the Fitbit app NOTE: Don’t use a USB hub or battery pack to charge Show More