US Patent 8406085 Swim device

The swim device includes a wrist unit system wearable on a wrist and a hand, at least one hand sensor unit that is wearable on a hand, and at least one foot sensor unit wearable on a foot. The wrist unit system includes a wrist unit and at least one pressure sensor. The wrist unit includes an integrated circuit chip (ICC) computer; a battery; an alarm, a display and housing with input buttons, and a wrist band with an embedded antenna. The hand/foot sensor unit includes an integrated circuit chip (ICC) computer with a battery. The pressure sensor is attached to a cap that is worn on the first segment of a finger or big toe in such a manner that the pressure sensor faces the water-bound side of the finger or big toe.