I wanted altimeter and compass. I' using Casio PRG-70 since about 6+ years and I use them all the time during all kind of outdoor activities from hiking to biki

I wanted altimeter and compass. I' using Casio PRG-70 since about 6+ years and I use them all the time during all kind of outdoor activities from hiking to biking to try finding way at Burning Man playa. This watch does not require batteries or charging at all - it gets all the charge it needs from day light (i.e. does not need actual sun light). They are submersible in water, dustproof in sandstorms, can be dropped on floor 100s of time, scratch proof against even fairly severe bumps, and has no problem in freezing cold or dessert heat. This makes them extremely reliable piece of tech you can count on regardless of your forgetfulness for charging them or natural elements. For me, they are my must-have outdoor companion. It was big bummer to see Apple Watch does not have compass and altimeter (there is no mention of it) and relies on iPhone for getting elevation and direction. They could have explored way for self-charging that many time pieces thses days offer. Smartwatch that doesn't need charging would truely be breakthrough.