Today's medical cellphone apps focus on fitness, an area that doesn't require FDA approval. Strap this heart monitor around your chest while you jog, and it beams info over Bluetooth to the Nokia N79 Active. Software on the phone records your heart rate, along with your route, altitude, speed and distance, as calculated by a GPS chip in the phone. Chart your progress, or compare it with your friends', on Nokia's Sports Tracker Web site.
Nokia N79 Active $530 (est.; Polar heart rate monitor included); nokia.com