- This Certified Refurbished product is tested and certified to look and work like new. The refurbishing process includes functionality testing, basic cleaning, inspection, and repackaging. The product ships with all relevant accessories, a minimum 90-day warranty, and may arrive in a generic box. Only select sellers who maintain a high performance bar may offer Certified Refurbished products on Amazon.com
- Get the power of continuous heart rate in Fitbit’s slimmest design yet-all day, during workouts and beyond
- With heart rate, you can better measure calorie burn, and use zones (Fat Burn, Cardio, and Peak) to find the right workout intensity for your goals.
- With sleep stages powered by PurePulse heart rate, automatically track your time spent in light, deep and REM sleep and take steps toward a better night’s rest.
- See how working out more can improve your health by comparing your resting heart rate trends to your activity, Sync stats wirelessly & automatically to computers and 200+ leading iOS, Android and Windows devices.
