Size and Weig ht
• Height
1.89 inches (48mm)
• W id th
0 . 7 6 inch (19.3 m m)
• Depth
0 . 3 8 inch (9.65 m m)
• Weight
0.28 oz. ( 0 . 02 lb, 8 g r ams )
Environmental Cond it ions
The F itbit One is not waterproof. It shouldn't be worn while swimming. It is, however, rain, splash, and
sweat‐proof.
• Operat ing Temperature
‐4° to 113° F ( ‐ 20° to 4 5 ° C)
• Non‐Operat ing Temperature
‐22° to 140° F ( ‐ 3 0 ° to 6 0 ° C)
• Relat ive Humid ity
One is splash‐proof, and should not be su bme rg e d more than one meter.
• Maximum Operat ing Alt itude
30,000 feet (9,144 m).
P C & Mac Requirements
Supported Browsers
Troubleshoot ing and Help
Troubleshoot ing and assistance for your F itbit One tracker can be
found at help.f itbit.com.
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Need help?
Do you have a question about the One and is the answer not in the manual?