Various embodiments concern motion sensor modules able to monitor movement. A motion sensor module can be detachably connected to an electronic device to which the motion sensor module transfers motion data. In some embodiments, the motion sensor module is connected to an electronic device associated with an individual. In other embodiments, the motion sensor module is embedded within an article of clothing worn by the individual (e.g., a shirt, swimsuit, or shoe). The motion sensor module includes at least one inertial measurement unit (IMU) that generates motion data indicative of the motion of the motion sensor module as a whole.