And, of course, your fitness tracker could betray you: If you tell someone you're heading to the gym, but end up laying around watching bad reality television instead, the data it collects will reflect your laziness -- or, as the Pennsylvania case suggests, perhaps even more serious deceptions. The whole reason you gave your friends access to your fitness tracker data was so they could help motivate you. That's not a…
The case is solved by a brilliant detective combining with a precociously smart computer guy who downloads the raw data from the gps tracker and determines that while route and speed are typical, the data betrays it was someone else because of the difference in gait, recorded by the accelerometer that was built into the device for an upcoming feature not yet released by the tracking company. This is either proved in a courthouse scene where the accused has to run across the room, or by deception by secretly tagging both the accused and their unsuspecting alibi runner and comparing the data.
Or something like that, anyway.