Greg wrote about the Cirqa which is a device I've been looking at. I wear a Garmin Enduro normally but really want to wear my analogue Tissot Tour de France edition watch. If I do that I miss any extra calorie counting which is important this off season as I try to drop a bit of weight for next cycling season. The Cirqa would track the daily movement I do so keep track of the calories burned. I'd still use my watch or the bike computer for any actual workout.
That's why I've looked at the Cirqa.