cool new G-SHOCK release, a proper fitness tracking watch thingy!
The GBD-H1000 series
https://world.g-shock.com/asia-mea/en/products/g-squad/gbd-h1000/
Has an optical heartbeat sensor, GPS/GLONASS/QZSS, altitude, barometric pressure, and compass
Also, most interestingly, solar assisted charging! The timekeeping and notification features will keep running just on solar, the GPS and heart tracking needs more juice so topping up the battery with the charger is advised after using that