To anyone who is interested, they are all "rangefinders". A golf GPS is a rangefinder. A laser is a rangefinder. That is what they do - they measure the distance or "range" from where you are to whatever the target is that you have in mind. Some do it better than others. I personally prefer a graphics based GPS. My Garmin G5 will do virtually anything a laser will do, and it will do things that a laser can't do (like get accurate distance through trees and over hills when I can't see the target). I used to have both a laser and GPS, but when I got the Garmin, I found that I didn't need the laser any more.
So yes, I use a rangefinder, but I don't use a laser. 