Perks
The SG2 is smaller and easier to carry than the SG3.5 model. The SG2, with its Intelligreen system, can improve your score because it shows definitive distances to the green from all angles. This allows you to work on your shot. The electronic scorecard is handy, and accuracy is decent at around 2.5 yards.
Sacrifices
The SG2 has a smaller screen than the SG3.5, and it is not in color. The unit costs a little more than the SG2.5, unless you buy it used, and basically, it has the same features. The SG2 may be smaller, but it is not lighter. The display is also a little harder to read, and the style is outdated. You will also have to buy a yearly subscription to use the unit.
Bottom Line
Go with the newer units rather than the SG2, as the displays are brighter and less like those old cell phone displays. The SG2.5 and SG3.5 are better choices, and they are less expensive with newer technology. The SG2.5 is lighter as well.
About The Author
Steve Smith has published hundreds of articles on a wide range of topics, including cars, travel, lifestyle, business, golf, weddings and careers. His articles, features and news stories have appeared in newspapers, consumer magazines and on various websites, including Trails.com and eHow.com. Smith holds a Bachelor of Arts in English and journalism from University of New Hampshire Durham.