fitbit inspire 3 hr

3-axis accelerometer

optical heart rate monitor

vibration motor

touchscreen

up to 10 days of battery

charge time (0-100%): two hours

radio transceiver: bluetooth

saves 7 days of detailed motion data minute by minute

saves daily totals for the last 30 days

inspire hr only: stores heart rate data at 1 second intervals

during exercise tracking and at 5 second intervals all other times

water resistant to 50 metres

the fitbit app is compatible with most popular phones and tablets:

- apple ios 14 or higher

- android os 8 or higher

- syncing range: up to 9m

- certain features like smartphone notifications may require android 8.0+

classic wristbands (both small & large):

- small: fits wrist 137mm - 193mm in circumference

- large: fits wrist 193mm - 221mm in circumference

colour: black/midnight zen