User's Manual

24
Size
Wristband sizes are shown below. Note that accessory wristbands sold separately may vary slightly.
Metal wristbands are one size fits all.
Small wristband Fits a wrist between 5.5 and 6.7 inches in circumference
Large wristband Fits a wrist between 6.7 and 8.1 inches in circumference
Extra large wristband Fits a wrist between 8.1 and 9.3 inches in circumference
Environmental conditions
Operating Temperature
14° to 113° F
(-10° to 45° C)
Non-operating Temperature
-4° to 140° F
(-20° to 60° C)
Water Resistant Splash proof.
Maximum Operating Altitude
30,000 feet
(9,144 m)
Help
Troubleshooting and assistance for your Fitbit Alta HR can be found at http://help.fitbit.com.
Return policy and warranty
Warranty information and the fitbit.com return policy can be found online at
http://www.fitbit.com/returns.