Fitbit Charge 4 Specs

Available Colors Black, Rosewood, Storm Blue/Black, Granite Reflective Woven
Battery Life Up to 7 days; up to 5 hours with continuous GPS use
Bluetooth Bluetooth 4.0
IP Rating Water resistant to 50 meters (not recommended wearing in a hot tub or sauna)
Material Tracker includes a plastic resin case and the band includes a stainless steel buckle
Operating Temperature -4° to 140° F
Sensors Optical heart rate monitor (accuracy is affected by physiology and location of device); GPS; NFC; Altimeter
Size 1.4in l x 0.9in w x 0.5in h
Special Features Music control via Bluetooth LE on Android and iOS devices
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