User manual

19
Size
Length
Width
Small wristband
5.5 – 6.7 in
140 – 170
mm
0.83 in
21 mm
Large wristband
6.3 – 7.6 in
161 – 194 mm
0.83 in
21 mm
Extra large wristband
7.6 – 9.1 in
194 – 230
mm
0.83 in
21 mm
Environmental conditions
Operating Temperature
-4° to 113° F
(-20° to 45° C)
Non-operating Temperature
-22° to 140° F
(-30° to 60° C)
Water Resistant
Splash proof. Do not shower or swim with the
device.
Maximum Operating Altitude
30,000 feet
(9,144 m)
Help
Troubleshooting and assistance for your Charge HR can be found at
http://help.fitbit.com.
Return policy and warranty
Warranty information and the Fitbit.com Store Return Policy can be found online at
http://www.fitbit.com/returns.