Fitbit Charge 2 review: The best Fitbit yet - CNET
Fitbit Charge 2 review: a promising fitness tracker, plagued by bugs - The Verge
How to update Fitbit: Step-by-step guide - Wareable
Fitbit Charge 2 Teardown
Fitbit Support on Twitter: "@corninmypoopies Hi, @corninmypoopies. Thanks for your efforts and screenshot. Please verify that you have followed our firmware update troubleshooting tips here: https://t.co/XsPWGBM3UQ. Also, DM us the following: -