Fitbit can alter the rules of the agreement without needing your explicit approval — simply continuing to use your device or app means you've agreed to whatever changes were made.
Fitbit's terms require users to resolve disputes through binding individual arbitration, waiving the right to participate in class action lawsuits — a significant limitation on legal recourse. The company also claims a broad license over user-generated content and integrates Google's data practices for users with Google accounts, expanding the scope of data handling. You can opt out of the arbitration clause by sending written notice to Fitbit within 30 days of first agreeing to the terms, as specified in the dispute resolution section.