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Fitbit: Health & Fitness on the App Store
The Fitbit App
How to Complete Fitbit Sync with iPhone: A Step-by-Step Guide
How to set up and use Fitbit for iPhone and iPad - iMore
Fitbit Supported Devices
How to Sync Your Fitbit with Your iPhone - wikiHow
How to use Fitbit for iPhone and iPad: The ultimate guide
Fitbit: Health & Fitness 4+ - App Store
How to Connect a Fitbit to an iPhone - MUO
How to Sync a Fitbit With an iPhone to Track Your Data - Business Insider