NIB Fitbit Inspire 3 Health and Fitness Tracker, Midnight Zen / Black

Length: 1.55 in (39.32 mm) Width: 0.73 in (18.6 mm) Height: 0.46 in (11.75 mm) Weight: 0.039 lb (17.69 g)  Battery life of up to 10 days. Battery life and charge cycles vary with use, settings and other factors; actual results will vary. We recommend charging your tracker every few days to ensure you are always tracking. • Battery type: Lithium-polymer • Charge time (0-100%): Two hours • Radio transceiver: Bluetooth®  • 3-axis accelerometer • Optical heart rate monitor • Vibration motor • Red and infrared sensors for blood oxygen (SpO2) monitoring. Not available in all countries. Not intended to diagnose or treat any medical condition or for any other medical purpose. Intended to help you manage your well-being and keep track of your information. Requires more frequent charging. • Ambient light sensor  Water resistant to 50 meters. After 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.  The Inspire 3 band is made of a premium, comfortable silicone (similar to that used in many sport watches) and fastens with a plastic buckle and tang.  Both small and large sizes included in box. • Small: Fits wrist 5.1 - 7.5 in circumference • Large: Fits wrist 6.3 - 8.7 in circumference  Fitbit Inspire 3 Classic wristband (both small & large) Charging cable