Nikon Prostaff 3i Laser Rangefinder (with Angle Compensation)

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nikon prostaff 3i rangefinderYard Range: 8-650 yards
Magnification: 6X 21mm objective lens
Display Type: LCD/Black
Dimensions: 4.4″ x 1.4″ x 2.8″
Waterproof/Fog-proof: No/Water-resistant
Angle Compensation: Yes
Measuring System: Yards/Meters
Measuring Distance: Line of sight/Slope
Use: Bow Hunting, Rifle Shooting, Target Shooting

Our Rating: 5 out of 5 stars

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Nikon PROSTAFF 3i Rangefinder Review

The Prostaff 3i has a 650 yard ranging distance, Nikon’s advanced ID Technology, and the very intuitive Tru-Target Priority System. It’s extremely compact in size, has multi-coated lenses, and an automatic power down mode. This Nikon rangefinder proves you don’t have to spend a lot to still get a feature-packed rangefinder.

The Nikon Prostaff 3i is new on the market and reviewers are yet to add their two cents about it. But what little has been said so far is keeping the 3i at 100 percent consumer satisfaction.

To get a deeper feel of its capabilities, you can compare it to its similar but older counterparts, the Nikon 550 and Nikon 440 that still get positive and solid reviews with great ratings. They’ve been praised for their quality performance and are what you consider ‘keepers’ once bought. It has to be assumed that the 3i is just as sound, if not better.

If you are still not convinced, review the questions and answers below for more info about the Prostaff.

Update - 2019.11.24The Prostaff 3i is certainly not the new kid on the block any more! With 4 years of production under its belt, this rangefinder has proven to have a solid track record and is a great buy for the hunter after a very compact device.
  • Price
  • Selective target modes
  • ID technology
  • Ultra-compact
  • Ballistic data

  • Not fully weatherproof



Can the Prostaff 3i give me readings from any angle?

If you’re rifle shooting, the answer is going to be yes. Unlike the Aculon, the Prostaff 3i can calculate for angle compensation. It has the cutting-edge ID (Incline/Decline) technology that allows you to be able to get readings from any +/-89 degree angle.

That means if you’re sitting up in a tree or if you’re down a steep hill looking up, this rangefinder will give you a horizontal distance at pretty much any angle.


How accurate is it in zooming in to targets?

This range finder has Nikon’s Spot On Ballistic Match Technology built in so that you can get really accurate readings pretty quickly, especially with the BDC reticles and 18mm ocular lens. Its maximum range is 650 yards to reflective targets and some reviewers have stated that they’ve pulled readings at 400 yards.


Can the Prostaff 3i range in on close and small targets when hunting?

Yes. This rangefinder has advanced technology that lets you keep a close and accurate eye on your prey large or small. In addition to the standard Distant Target Priority Mode, the Tru Target Technology also gives you the option of using First Target Priority Mode.

This gives you the closest readings in a group as well as identify small targets amid larger ones. It might just give small game ranging a whole new perspective.


Can this rangefinder survive bad weather?

Some people would first ask you to define ‘bad weather’. If you’re talking about some rain and gloomy conditions, then you needn’t worry about your Prostaff 3i standing up to ‘bad weather’. However, if you’re hoping it’ll survive a dive in a pond or a flash flood during the Monsoon’s, then you’ll be disappointed.

Unfortunately this device, like some others of Nikon’s rangefinder line, doesn’t come waterproof. Rain and water resistant – yes. Waterproof – no. If waterproofing is important to you, you might find a more suitable rangefinder among the reviews here:


Noteworthy Features:

  • LCD screen, single button operation, multi-coated optics
  • Distant Target and First Target Priority Mode options
  • 18mm ocular lens for faster readings
  • BDC reticles and Spot On Ballistic Match Technology for precise and consistent performance
  • ID (Incline/Decline) Technology


Our Verdict on the Prostaff 3i

The aim of it is, the Nikon Prostaff 3i is your ultimate rangefinder with tons of features packed into an itty-bitty unit. For everything it sports, it’s well priced. However, a better bonus would’ve been if it was fully waterproof. Withstanding harsh conditions is a must in a productive hunt. But, despite the lack of waterproofing, we still liked this device enough to give it a spot on our list of the best target shooting rangefinders, which is worth taking a look at.

However, one such Nikon can that out-dirt any 4X4 pickup is the Nikon Team Realtree 1200. It even has a finish that’ll match your hunting outfit! It might not have all the bells and whistles that the Prostaff brags about, but it’ll stay by your side through the thick and thin of it all – fog or rain, bring it on!

But, Leupold knows better than to pick and choose what units get this extra perk. They’ve made the choice simple with outfitting all their rangefinders with waterproofness. The Leupold RX-1600i TBR/W with DNA is the epitome of rugged and tough when out on the hunt.

But, don’t hold this against Nikon. They help to keep costs low by piling in what really matters. The Prostaff 3i will still withstand about as much weather as you can. It might even outdo you! Don’t be a wuss, get out in the bush!

Nikon (16229) Prostaff 3I Rifle Range Finder, Black
41 Reviews
Nikon (16229) Prostaff 3I Rifle Range Finder, Black
  • Displays in 0.1-yard Increments; Ultra-Compact Size
  • ID (Incline/Decline) Technology; Large Ocular Lens



Simon is an avid outdoor enthusiast who is passionate about bringing you the most up to date, accurate & understandable information on hunting, optics, and the outdoors.

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