Up to 5 days of battery life. Compatible with iOS and Android. Ready for more feel good time: the slim case and comfortable strap ensure long-lasting comfort. The stress management index in the Fitbit app indicates how your body deal with stress on a scale of 1 to 100. The higher the value, the more relaxed you are. In the Fitbit app, you can see how long you were in light, deep and REM sleep phases every morning. You will also receive tips for a more restful sleep. Thanks to the sleep index you know at a glance how well you have really slept and can easily track the development of your sleep quality. The tracker detects and vibrates when you reach your personal target heart rate zones and collect active zone minutes. So you can better estimate and increase the effect of your training. More comprehensive personalised insights about your stats show you how activity, heart rate, stress and sleep affect each other. So you can make smarter decisions for your health.

Technical Details Age Range: ‎Adult Color: ‎Moon white / stainless steel soft gold Size: ‎One Size Style: ‎Fitbit Luxe Compatible with: ‎Smartphone Display Size: ‎0.76 Inches Display Type: ‎OLED Weight: ‎0.03 Kilograms Shape: ‎Round Material Type: ‎Synthetic Meter: ‎Heart rate monitor, sleep duration, blood oxygen monitor Number of Items: ‎1 Power Source: ‎Battery Features: ‎Notifications, Time Display, View, heart rate monitor Sport: ‎Fitness Wattage: ‎50 watts Included Components: ‎Battery. Batteries Included?: ‎Yes Brand: ‎Fitbit Department: ‎unisex_adult Manufacturer: ‎Fitbit Language: ‎English Item model number: ‎FB422GLWT Product Dimensions: ‎3.63 x 1.75 x 1 cm; 26.17 g ASIN: ‎B08ZF5WCC2 Additional Information Batteries: 1 Lithium Polymer batteries required. (included) Date First Available: 20 April 2021 Is Discontinued By Manufacturer: No

Battery.

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