In Canada, a personal injury firm is representing a personal trainer who was injured in an accident. In the first of its kind, the firm is going to attempt to use the fitbit data to show what activity level the client is at now and compare it to the average activity level of someone her age and profession. It is unclear right now if the court in Canada will accept the information as accurate or allow it as evidence in the case.
However, it begs the question as to what other types of matters could fitbit data be used for. What if health insurance companies or employers started requesting the data to determine your level of activity when considering to insured you. In reality, the data collected by fitbit or any of the other similar brands could act as a black box for the human body. It is hard to lie and say you can no longer run after an accident, when fitbit data says otherwise.