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Fitbit Charge HR
Released:
2015
•
OS:
Fitbit OS
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Specifications
Processor
32-bit ARM STM32L151RD based microcontroller
Display
0.4" OLED Tap display (single-line monochrome)
Battery
Battery Life:
Up to ~5 days typical usage
Charging:
Proprietary USB charging cable (1-2 hours full charge)
Sensors
Optical heart-rate sensor (wrist-based, continuous), 3-axis accelerometer, Barometric altimeter (floors climbed), Vibration motor
Water Resistance
Splash/sweat resistant (not swim-proof) – approx. 1 ATM / 10 m
Connectivity
Bluetooth 4.0 wireless sync (range ~6 m) + USB dongle for PC
Physical Aspects
Design:
Elastomer strap, stainless-steel buckle, fits wrist sizes small to extra large
Weight:
Approx. ~26 g
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