thanks guys, so on the casio watch, they get mixed reviews. any complaints? model? I'd like to keep all these things under 2oz too. The crackerjack compass you see everywhere is draggy, and off by as much as 90 degrees. I suspect a real needle compass is required, unless the watch is accurate. The watch solution woukd stay in my bag and get temp readings away from my wrist. The barometer would need to provide trends on the lake, helping us decide if we can make it to the other side and back in our kayaks w/o rain wind. Altitude is nice to know, but i suspect its inaccurate as the weather changes.