I bought this watch because I like to walk for fitness, and I wanted something to help me measure my intensity and help me keep up my pace. This watch fits the bill perfectly, and I even use it when I do aerobics. I've also used it a couple of times on my bike, but it doesn't seem to pick much up unless I stand up when going up a hill. Still, that's not what I bought the watch for anyway!
The light works excellently, the activity timer is perfect (and it even stores your past records, so you can review your exercise for the week), the barometer and altimer are both fun and informative, and the watch looks great too. I am a small young women with little wrists, but it doesn't look to clunky and it fits really well because the strap has holes all the way up the band so you can make it really tight if you want. The screen is really clear and easy to read, and even though I have accidentally knocked it a few times, there is not a scratch on it. I love wearing it everyday, and it is so useful.