Having a hard time using a GPS on a golf course? Well, if you ask me which golf GPS is the most convenient my answer is the Garmin Approach S1 Waterproof Golf GPS Watch. I own a Sky Caddie SG2 and a GolfGuru4, but when I needed to buy a new watch, I bought this device, and I’m glad I did. This little gadget is the most convenient way to use a GPS on a golf course. It provides distance to front, center, and back of the green, auto advances to the next hole, and easily measures shot distances. It is quite accurate also comparable to more expensive Golf GPS devices out there. But the thing that I really like about this little gadget is that I don’t need to remember to bring a GPS to the golf course, it’s right there on my arm. All in all, this device is convenient, and relatively inexpensive.