User manual
Table Of Contents
- Get started
- Unlock Fitbit Premium
- Wear Sense 2
- Basics
- Clock Faces, Tiles, and Apps
- Voice Assistant
- Lifestyle
- Notifications from your phone
- Timekeeping
- Activity and Wellness
- Exercise and Heart Health
- Fitbit Pay
- Update, Restart, and Erase
- Troubleshooting
- General Info and Specifications
- Regulatory and Safety Notices
- USA: Federal Communications Commission (FCC) statement
- Canada: Industry Canada (IC) statement
- European Union (EU)
- Argentina
- Australia and New Zealand
- Ghana
- Indonesia
- Israel
- Japan
- Kingdom of Saudi Arabia
- Malaysia
- Mexico
- Morocco
- Nigeria
- Oman
- Paraguay
- Philippines
- Serbia
- Singapore
- South Korea
- Taiwan
- Thailand
- United Arab Emirates
- United Kingdom
- Vietnam
- About the Battery
- IP Rating
- Safety Statement
- Regulatory Markings
- Customiz
Hereby, Fitbit LLC declares that the radio equipment type Model FB521 is in
compliance with Radio Equipment Regulations 2017. The full text of the UK
declaration of conformity is available at the following internet address:
www.fitbit.com/legal/safety-instructions
Frequency Bands and Power
Data given here is the maximum radio-frequency power transmitted in the
frequency band(s) in which the radio equipment operates.
Bluetooth 2400-2483.5 MHz < 13 dBm EIRP
NFC 13.56 MHz < 42 dBuA/m at 10m
Vietnam
About the Battery
This unit contains a non-replaceable internal lithium-ion battery. The battery can
burst or explode, releasing hazardous chemicals. To reduce the risk of fire or burns,
do not disassemble, crush, puncture or dispose of in fire or water.
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