Product · Nikon
Nikon Coolshot 20i GIII: dual display, 130 g
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The Coolshot 20i GIII is for golfers who want slope readings in one of the lightest lasers available. At 130 g it matches the distance-only Coolshot 20 GIII, yet adds Nikon's ID Technology slope, a dual display showing both plays-as and straight line figures, and Locked On Quake confirmation.
- Slope control
- Not stated
- Range
- 6-800 yards
- Magnification
- 6x
- Flag lock
- Locked On Quake, First Target Priority
- Weight
- 130 g
In its favour
- Dual display shows the slope-adjusted and the straight line distance at the same time.
- Long 20 mm eye relief and a diopter help golfers who wear glasses or sunglasses.
- Listed accuracy of 1 yard under 100 yards and 2 yards beyond, with IPX4 rain resistance.
Good to know
- The listing does not describe an external slope switch or a separate actual-only mode.
- No magnet is mentioned, unlike the 50i models.
Our take
Dual display and slope
Nikon shows the slope-adjusted plays-as distance and the straight line distance together. Seeing both teaches you how much elevation is affecting a shot and means you always have the actual figure in view.
The listing does not explain how slope is switched off for competitions, so check that before relying on it in a medal round.
For golfers learning a new course, a side-by-side readout makes it easier to build a feel for how much an elevated tee shortens a par three.
Range and accuracy
The range is 6 to 800 yards, displayed in one yard steps. Nikon quotes accuracy of one yard under 100 yards and two yards beyond that. Yards or metres can be selected. First Target Priority ensures the reading is the flag, not the trees behind.
Optics and build
The 6x20 monocular uses multilayer coatings, and both the viewer and laser are Nikon designs. A diopter lets you focus to your own eyesight, and 20 mm of eye relief suits sunglasses or glasses. It is rainproof to IPX4 and runs on a CR2 lithium battery, which is included. The listing mentions an industry leading five year warranty, and spare parts are listed for five years.
Nikon's 20i series has a long history, and this third generation adds Locked On Quake, slope and longer range compared with the previous 20i GII according to the listing.
20i GIII against the 50i GII and Bushnell A1-Slope
The Nikon Coolshot 50i GII adds a magnet, longer range and Golf and Actual Distance modes, at 209 g. The Bushnell A1-Slope weighs 144 g and charges over USB-C. The 20i GIII is the lightest slope laser in this group.
Who might want more
Golfers who want a magnet for the trolley or a rechargeable battery will find better matches in the 50i GII or A1-Slope. If you never use slope, the Coolshot 20 GIII is simpler.
Anyone who needs a hard case should note the listing only mentions the battery as an included component.
Verdict
Pick the Nikon Coolshot 20i GIII if you want slope and straight distances side by side in a very light, rainproof laser. If you want a magnet and longer range, the Coolshot 50i GII is the step up, and for USB-C charging, the Bushnell A1-Slope.
Compared with alternatives in: Best golf rangefinders with slope
Amazon listing title: Nikon COOLSHOT 20i GIII Golf Laser Rangefinder - 6x20 Optics, 800-Yard Range, Rainproof Design, Lightweight, Compact Rangefinder with Slope Compensation, Locked On Quake