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Free shipping on orders $50+
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45 day money back guarantee on devices and accessories
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1 year limited warranty on devices and accessories
†Free trial is activated upon device purchase and cannot be gifted. Valid payment method required. Cancel before free trial ends to avoid subscription fees. New Premium users only. Content and features subject to change. Subject to our Terms for Paid Services.
Reasons you’ll love Charge 4 Reasons you’ll love Charge 4
Even more to love
Up to 7-Day Battery Life
Track activity, sleep, heart rate and more with multi-day battery so you can do more on a single charge.*
Secure Tap to Pay
Make purchases from Charge 4 at millions of stores or transit stations—no phone or wallet necessary.**
Oxygen Saturation (SpO2)
Track SpO2 to help you learn when there may be an indication of important changes to your fitness & wellness.⧫⧫
Alerts When You Decide
Use do not disturb or sleep mode to mute calls & set a vibrating alarm for reminders or to wake peacefully.
Health Metrics
Track breathing rate, heart rate variability, skin temperature and more for your well-being in the Fitbit app.⧫⧫⧫
20+ Goal-Based Exercises
Go into exercise modes during your favorite workouts, then set a goal and get real-time stats as you move.
All-Day Activity
Track steps, distance, floors, Active Zone Minutes and calories burned to see how you impact your goals.
Smart Features
Get call, text, calendar and app notifications when your phone is nearby & send quick text replies on Android.
Menstrual Health Tracking
Use Charge 4 with the Fitbit app to follow your cycle, record symptoms and more.
Guided Breathing
Find moments of calm throughout the day with personalized breathing sessions based on your heart rate.
* Varies with use and other factors; up to 5 hours with continuous GPS.
** Transit available in select cities. See bank and transit availability.
*** Water resistant to 50M.
⧫ Spotify Premium subscription required. Not available in all countries.
⧫⧫Skin temperature variation and SpO2 are not available in all markets. Skin temperature is only available in the Fitbit app and only displays variation. Significant changes in ambient temperature may negatively impact skin temperature tracking. The SpO2 feature is not intended to diagnose or treat any medical condition or for any other medical purpose. It is intended to help you manage your well-being and keep track of your information. The SpO2 feature requires more frequent charging.
⧫⧫⧫The Health Metrics dashboard and the metrics displayed in the dashboard are not available in all countries. Not intended for medical purposes. This feature is not intended to diagnose or treat any medical condition and should not be relied on for any medical purposes. It is intended to provide information that can help you manage your well-being. If you have any concerns about your health, please talk to a healthcare provider. If you believe you are experiencing a medical emergency, call emergency services.
†Premium content and features subject to change.