35
Band size
Band sizes are shown below. Note that accessory bands sold separately may vary slightly.
Small band Fits a wrist between 5.5 - 7.1 inches (140 mm - 180 mm) in circumference
Large band Fits a wrist between 7.1 - 8.7 inches (180 mm - 220 mm) in circumference
Environmental conditions
Operating
temperature
14° to 113° F
(-10° to 45° C)
Non-operating
temperature
-4° to 14° F
(-20° to -10° C)
113° to 140°F
(0° to 42° C)
Charging
temperature
32° to 108°F
(45° to 60° C)
Storage temperature
for 6 months
-4° to 95° F
(-20° to 35° C)
Water resistance
Water resistant up to 50 meters
Maximum operating
altitude
28,000 feet
(8,534 m)
Learn more
To learn more about your tracker, how to track your progress in the Fitbit app, and how to build
healthy habits with Fitbit Premium, visit
help.fitbit.com
.
Return policy and warranty
Find warranty information and the fitbit.com return policy on
our website
.
Содержание FB422
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