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Memory
Ace 3 stores your data, including daily stats, sleep information, and activity history,
for 7 days. See your historical data in the Fitbit app.
Display
Ace 3 has a PMOLED display.
Band size
One-size
band
Fits a wrist between 4.8 and 6.8 inches (121 mm - 172 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
(45° to 60° C)
Charging temperature 32° to 109° F
(0° to 43° C)
Water resistance Water resistant up to 50 meters
Maximum operating altitude 28,000 feet
(8,534 m)
30
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