Garmin D2 PX. Big enough to make up for small bits. World wide nav data base included. Batt lasts 20 days. Heart rate, O2 level and stress all mapped against your flight for replay to impress that chic cause you don't have the personality to do so. It tells you when you slept, how you slept, and if it was enough sleep. It complains if you didn't do enough steps or drink enough water. It's the wife on your wrist (steady!).
It ain't apple.
Garmin, for those that need more than a Casio.