Casio Pro Trek Smart WSD-F20 review

The rugged and chunky Pro Trek Smart WSD-F20 is Casio’s second attempt at an adventure-loving Android smartwatch for people who like to hike the hills, paddle up stream and generally get off the grid.A replacement for the Casio Smart Outdoor Watch WSD-F10, the WSD-F20 looks almost identical to its predecessor, although it’s slightly thinner. The major headline upgrade here, though, is the inclusion of built-in GPS, so now you can take on the great outdoors without your phone. That&rs