No device is better at turning a workout into a game than the new Nike+ Training system. Eight pressure sensors in the shoes (included) collect information on your movements—how fast, how high, and how hard you play—and wirelessly transmit the data to your iPhone. From there, post your stats and feedback on the Nike+ Leaderboard to compare your NikeFuel score with friends and pro athletes alike. The app offers what Nike calls drill packs to help improve speed, explosiveness, and strength—directing you in everything from hill climbs to sumo squats to crunches. Bonus: since each pack lasts only 10 to 15 minutes, it’s easy to fit in a workout, or two or three. Bummer: it’s currently compatible only with the iPhone.
BEST FOR: The Competitive Set