Over at WWR, we’ve looked at a number of Casio ProTrek watches. In my eyes, if you’re on the hunt for an outdoors-focused watch with a lot of technical capabilities, the ProTrek lineup is the place to be. If you’re also fond of tracking your exertions, you’ve had to go for a fitness watch that also had GPS built in. That is, until the Casio ProTrek WSD-F21HR was announced.
