Ringe finders are far superior to GPS devices. A GPS will give you the yardage to the front, back and middle of the green. It's been my experience when playing with someone that has a GPS, they can be off as much as 15 yards when I measure with my rangefinder. I've also had people tell me that they were getting a reading as much as 100 yards different. Turns out that they had the wrong hole or wrong golf course plugged in. IMHO, the GPS is far more complicated and subject to errors if you're not very careful with the info that you input.
I have a very inexpensive Nexus rangefinder and it works very well for me. You can find them at
Precision Pro Golf | Golf Laser Rangefinders | Golf GPS Devices
The major difference between the high-end models and the less expansive ones is bells and whistles. For the vast majority of the time playing in Florida, especially in The Villages, the slope feature is unnecessary. I will say that with my bargain model, sometimes I have to shoot the flag three or four times and may get readings that vary 2-3 yards. That's close enough for me. I'll also say that I sometimes have difficulty getting readings over 200 yards. But again, if I'm that far out, it's not a big deal anyway. I find that the yardage markers on the par threes in TV are pretty accurate. I only need to know how much to take off for a front or back pin. On many of the older golf courses, it's not a problem, but some of the newer courses have greens that might be 3-4 clubs different front to back.
I have nothing to do with this product. My wife bought it for me for my birthday and I've been very happy with it.
Return the GPS and buy something that actually works.