Price: £129.99 - £119.00 (as of Jan 17, 2022 04:31:40 UTC – Details)
From the manufacturer
Compatibility: Compatible with iOS 13 or higher & Android OS 8.0 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
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