The second incarnation of the popular sleep and fitness tracker sure is a goodie. Misfit Shine 2 Fitness & Sleep Monitor sees the addition of an all-new 3-axis magnetometer and 3-axis accelerator inside the pebble-like device to measure the strength and pull of external magnetic fields, while the usual suspects such as steps, calories and distance are taken care of. Can be worn on the wrist or clipped discreetly to clothing.