We do not recommend wearing Fitbit Charge 4™ in a hot tub or sauna. After swimming or getting the band wet, we recommend drying the band because, as with any wearable device, it's best for your skin if the band is clean and dry. Measures heart rate data at 1-second intervals during exercise tracking and at 5-second intervals all other times Saves 7 days of detailed motion and heart rate data, minute by minute We recommend charging every few days to ensure you’re always tracking. Battery life and charge cycles vary with use, settings, and other factors actual results will vary. Red and infrared sensors for oxygen saturation (SpO2) monitoringĭevice temperature sensor (skin temperature variation available in the Fitbit app)īattery life up to 7 days, or up to 5 hours with continuous GPS use. Use Charge 4 with the Fitbit app to follow your cycle, record symptoms and more.įind moments of calm throughout the day with personalized breathing sessions based on your heart rate.
calendar and app notifications when your phone is nearby & send quick text replies on Android. Active Zone Minutes and calories burned to see how you impact your goals. then set a goal and get real-time stets as you move. Go into exercise modes during your favorite workouts. Track breathing rate, heart rate variability, skin temperature and more for your well-being in the Fitbit app. Use do not disturb or sleep mode to mute calls & set a vibrating alarm for reminders or to wake peacefully.
Track 5p02 to help you learn when there may be an indication of important changes to your fitness & wellness. Make purchases from Charge 4 at millions of stores or transit stations-no phone or wallet necessary. Track activity, sleep, heart rate and more with multi-day battery so you can do more on a single charge.
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