Answer 4 quick questions to see whether Nikon COOLSHOT 20i GIII or Nikon COOLSHOT 20 GIII better matches how you play, aim and manage your rangefinder.
This is the fundamental difference: the 20i GIII adds Nikon’s incline/decline distance compensation.
Both share the same compact Nikon platform; decide whether having slope available is useful outside competition.
Both are 6x, 800-yard-class, CR2-powered and roughly 4.6 ounces.
Check live prices at purchase time rather than assuming a fixed difference.
Nikon COOLSHOT 20i GIII fits golfers who want Nikon’s compact 6x, 800-yard-class platform plus ID incline/decline technology for slope-adjusted distance.
Nikon COOLSHOT 20 GIII fits golfers who want the same compact 6x, 800-yard-class Nikon concept focused on straight-line distance without buying a slope-compensation feature they do not need.