are the little wrist mount Garmins up to much ?
There are 2 versions - the 'Forerunners' are aimed at sporting activity so more distance / speed type data (I have a forerunner 301 which comes with a heart monitoring chest strap) and the 'Foretrex' which are more navigation orientated with grid refs / bearings etc.I'm guessing you mean the Forerunners? .
I carry one switched off in my pack if i'm out in bad weather, so if i get lost i can turn it on and get a grid ref, then turn it off again and navigate by map and compass from there (that's the plan, but i've never had to resort to it yet)