Get lean with high-tech toys and go green by using clean-energy chargers to power them.
Fit to WearLearn exactly what you burn with this calorie-counting cuff, which monitors sleep quality, physical activity and more to produce an accurate tally. $250; BodyMedia.com
Pocket-Size Power PlantHarness solar and wind energy to charge AA batteries or run handheld electronics. $45; HYmini.com
Smarty PantsThese workout bottoms use kinetic energy, making you the battery for your MP3 player. Your music maker will never run out of juice before you do. In prototype at DesignBoom.com
Powering PistonPop this 11-ounce baby in your purse and walk to generate juice (one minute walking equals one minute of iPod nano playing time). $160; NPowerPeg.com
Sun CatcherTurn the sun's rays into free electricity for your portable devices with this affordable charger. You are golden. $80; Solio.com
Wet TunesOur testers voted this waterproof MP3 player best sound and least likely to come off while swimming. $120; SpeedoUSA.com
Nama-Stay HomeA small speaker inside this earth-friendly mat puts your favorite yoga download at your ear. $30; Gaiam.com
You Say You Want a Revolution?This bike computer does almost everything but reinvent the wheel: It's a GPS, heart-rate monitor, odometer and personal trainer. $450; Buy.Garmin.com
Let It RideNow even stationary bikes are green. Plug this one in and your spin session will feed energy back into the power grid and lower your electric bill. $1,199; ResourceFitness.net
Gear up for your next event.
SELF gives you great advice on being healthy, happy, slimmer, fitter and less stressed.
Join the SELF Healthy Cities Goal on Active.com Trainer. We'll add weekly goals to log and members of the healthiest city will get a free online training plan.