Quantitative Wheezing: Adidas vs Garmin vs TomTom Sports Watches

Numbers are your friend when you're training, and these watches are real mathletes
GPS sport watches

When you're out training, it's nice to know exactly how much ground you've covered – and exactly what effect all that exercise is having.

These three bits of smart wrist candy will do exactly that – but which watch is the one for you? Well, it depends entirely on how you want to train. Read on