Reviewed: 30 April 2007
Light weight, cadence and stride length feature, ease of use, comfort, ability to customise each exercise display, large memory, seemingly scratch resistant outer casing in daily wear, small footpod, easy setup.
NO MAC OS X SOFTWARE!!! Sort it out Polar, seriously!! Clunky diary software with well documented redraw problems, IR interface often problematic, soon to be available GPS add on will not allow route downloads (stupid omission), no comprehensive printed documentation or pouch provided as with the S625X.
An excellent tool that has improved my running an enormous amount - a feature I'd never have expected to use (cadence) has been the best, teaching me to stay lower to the ground and conserve energy. This in itself is taking 30-40 seconds a kilometre off my time. As I wrote though the software could be a lot better and there is STILL no Mac version, which is astonishing.
Buy one, but only from the US - the UK price is a joke. I got mine on eBay the week it came out for about 165 pounds. It's now around 350 I think.