Casio's new Pro Trek smartwatch gets bigger battery life and a new dual display
Casio is back with the third instalment of its Wear smartwatch and it's still all about tracking in the great outdoors. The WSD-F30 is the successor to the WSD-F20 (upgrade to WSD-F10) and once again falls under Casio's Pro Trek Smart series packing built-in GPS and the ability to access maps while offline. Essential reading:…