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
(45° to 60° C)
Charging
temperature
32° to 95° F
(0° to 35° C)
Water resistance Water resistant up to 50 meters
Humidity range While Fitbit Sense can operate in humidity conditions between 0%
and 100%, we recommend not operating in conditions over 60% for
prolonged periods of time.
Maximum
operating altitude
28,000 feet
(8,534 m)
Learn more
To learn more about your watch, 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.
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