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7 digital fitness coaches

Every January countless Americans vow to get in better shape. Make this year different with these gadgets - no personal trainer required.

7 of 7
If you are just looking for the most efficient way to lose weight

Price: $199 for armband, $79 for watch; $10 a month after six months; 24hourfitness.com

When strapped to your arm, the Bodybugg uses your temperature, sweat, and movement to calculate how many calories you're burning throughout the day. Plug the gadget into a PC to select the food you've eaten -- and you'll get assessments and advice on dropping pounds.

Last updated January 15 2010: 7:50 AM ET
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