PUBLISHED 12/21/2006
There are two ways to electronically measure your runs: shoe pods or GPS receivers. Both have their limitations--shoe pods need to be calibrated for optimal accuracy and GPS requires a clear line of sight to three or more satellites. But in the right device, these technologies make great workout partners, recording every mile and heartbeat to help you train smarter. We armed RW staffers with three souped-up sports watches to see which ones go the extra mile.
Garmin Forerunner 305
Track every mile you run with this trusted training tool
Polar Running Computer
Monitor your effort accurately during even your toughest workout
Timex Enhanced Men's Ironman Bodylink
Know your finish time before you even cross the line with this running gadget
