I used to use the SkyCaddie and liked it a lot. I now use the Bushnell Pinseeker for the same reasons sited by Idridehd. The Bushnell works very well and I don't have to be concerned about downloading courses or renewing my subscription. I tried the SkyCaddie and the Bushnell together a couple of times just to compare the accuracy. Their measurements were consistently within about 1-2 yards of each other. The Bushnell is actually a little more accurate, because you don't have to approximate where the flag is on the green as you do with the SkyCaddie.