The Leupold GX Rangefinder Series for golf isn’t as well known as the Bushnell line of laser rangefinders, but GRS Scores are not far behind. It may also be worth noting that Leupold is the official rangefinder of the Professional Tour Caddies of America. If indeed, PGA Tour Caddies are using them in their tournament preparation, you can bet the Leupold GX rangefinders are solid performers. Leupold & Stevens is a family-owned business based in Beaverton, Ohio. They also manufacture telescopic sights, red dot sights, spotting scopes, and binoculars.
Currently there are four laser golf rangefinders in the Leupold GX series. All of them have 6x magnification, line of sight distances, scan mode, prism lock and fog mode. The Leupold GX1 is the most popular model in the series and gets an impressive GRS Score of 8.96. It is legal under the USGA local rule. The Leupold GX3 is the other legal device in the series. It is slightly more compact and offers OLED screen instead of the LCD fron on the GX1.
Neither the Leupold GX2 or the Leupold GX4 are tournament legal, but if your friends will let you get away with using one, there are a few features worth noting. Both of these devices allow you to input the distance you hit three specific clubs and then they help you decide what club to hit based on an algorithm that takes into account temperature and distance. I guess you have to figure out if wind is a factor by yourself!