Sensors & components
3-axis accelerometer, optical heart rate monitor, vibration motor
Display
Touchscreen, grayscale OLED
Battery life
Up to 5 days of batteryRead legal footnote3
Battery type
Lithium-polymer
Charge time (0-100%)
Two hours
Radio transceiver
Bluetooth 4.0
Memory
Saves 7 days of detailed motion data – minute by minute, saves daily totals for past 30 days, stores heart rate data at 1 second intervals during exercise tracking and at 5 second intervals all other times
Water resistance
Water resistant to 50 metres
Operating temperature
-10° to 45° C
Maximum operating altitude
8 535 m
Syncing
Syncs automatically and wirelessly to 200+ leading Android, iOS & Windows 10 devices using Bluetooth LE wireless technology
Syncing range
Up to 6 m
What’s in the box
Fitbit Inspire HR, classic wristband (small & large options), charging cable, user manual
