Mileseey S50 Green-Beam Laser Measure Review

About the Mileseey S50 Green-Beam Laser Measure

• Measuring modes: 18 measuring modes, including distance, area/volume, continuous, wall-area, multiple Pythagorean, circle/trapezoid/cylinder, indirect height, and point-to-point
• Display: 2.4-inch IPS display with light and dark mode, customizable text size, and units
• Smart features: App integration with measurement tracking over Bluetooth.
• Power: Dual power with included two rechargeable 1800mAh batteries and support for AA batteries. Charges over USB-C (cable included)
• Other features: Measuring references, side laser alignment level, built-in digital bubble level, automatic display rotation
• Durability: IP54 dust and splash-resistant

It’s worth noting that this is a laser distance meter, designed for precise measurements from point to point—think what you’d normally do with a tape measure, but much faster, over short and long distances. These are useful for home improvement projects, woodworking, floor plan measurements, and staking out lengthy installations such as sound wires, lighting, cables, networking, fences, light strips, and shelving.

If you are looking for something that can estimate distances much farther than 150 yards for golf, hiking, photography, or other activities where you want rough distances beyond 150 yards, you want a rangefinder.

How we tested

We tested the Mileseey S50 Green-Beam Laser Measure in a variety of conditions, including indoor and outdoor measurement in low, moderate, and bright artificial light and sunlight. We put it through its paces over about two weeks across different housing projects and measurements, both indoor and outdoor, compared to both traditional measuring tapes and other laser distance meters. Our testing was conducted primarily with AA batteries, though it also included two AA-sized rechargeable 1800 mAh batteries and a USB cable for charging them.

What we like

The laser is bright and easy to see in almost any condition

As we found when testing for the best laser levels, the actual visibility of the laser you are using is often the most important quality (besides accuracy). If you can’t see the line or dot you are supposed to use for targeting, you have no idea whether the measurement is for the right thing. The S50 excels in this regard with a very bright green dot that was easy to see outside on a sunny day—up to about 70 feet away.

That is important because (as we’ll cover in a second) the distance meter is very precise and you’ll need to be able to see exactly where the measurement is coming from to get a number you can trust. For very long measurements, you may need a second person to verify that the dot is in the right spot. A tripod or another way to steady the beam so it doesn’t flutter is a must.

The measurements are right on the money

To test the S50’s accuracy, I put it to the test, measuring the width of my house and the floor plan of my kitchen, both of which have been professionally measured a half dozen times. The S50 returned on-the-money results every single time, with customizable units so you can get metric and imperial measurements, and even automatically display your distance in feet, inches, or multi-unit format, with accuracy down to 1/32nd of an inch or 1/16th, depending on your application.

For long distances, we were able to confirm accuracy up to about 130 feet outdoors. Anything longer than that is going to require a reflective target to get a strong enough return signal, so we were unable to confirm the 400-foot claims made by the manufacturer fully, but we remain suitably impressed with how well it handled everything we could think of.

The extras, like point-to-point measuring and wall area, are super handy

One of my favorite features of the S50 is the ability to measure from point to point. For example, in my mudroom, I have a raised ceiling with a slanted roof on both sides, so the side wall is basically one big triangle that starts about 8 feet up. Getting a read on the exact width at any point is a pain, requiring two people and at least one ladder.

With the S50 (on a tripod for stability, which is critical for P2P measurement and not included), you can place the device centrally, take one measurement on the left side, swivel it to the right, and take another to get an accurate lateral distance—no ladders required. This is one of the best uses of distance meters like this, and makes it easily worth the cost difference over a simple measuring tape.

In addition, the S50 offers a range of other helpful measurement types, including continuous distance, volume, wall area, general geometric calculations, such as Pythagorean and trapezium, indirect height, staking, and even cylindrical volume. It also includes a side laser for alignment, though it’s nowhere near wide enough to replace a dedicated laser level. Basically, any advanced measurement calculation you need to do, the S50 can help you get it done quickly.

What we don’t like

The app is clunky and not super useful

File this under minor complaints, since you can just ignore it, but the S50 includes an app that lets you send measurements to your phone. Connecting it is fairly straightforward, and the app has a nice, clean interface. It connected instantly, and after creating an account, it sent measurements without issue.

So why don’t we like it? It just doesn’t offer much of a reason to use it. The floor plan drawing is neat, but it's too much of a pain to use regularly. And if you just want to do a single floor plan, just draw one. If you do them regularly, you’ll want a better tool. And sending measurements is potentially useful, but I have a hard time seeing when it would be easier than just using the notes app on your phone or drafting an email, since you’ll need to label each measurement anyway.

Long-distance outdoor measurements are difficult to get right

One thing higher-end (read: more expensive) distance meters offer is the ability to use a built-in camera to provide a live video feed of what the meter is aimed at. The S50 requires you to spot the green dot, which, when you’re measuring something very far away, is a pain. I can eyeball the dot at about 60 feet (caveat: my vision is terrible), but at 100 feet or more outdoors, it's hard to see.

The camera-based approach simplifies the setup, ensuring you get a more accurate result for these long-distance outdoor use cases, and the S50 lacks that. It can still make those measurements, but it may require more careful planning. One trick I used was to put the meter on a steady object or tripod, then just use my cell phone camera’s 30 or 100x digital zoom to find the green dot and ensure it was in the right spot. Even then, it’s hard to make this work beyond 130 feet outdoors, even if the meter can theoretically handle it. You’ll need a reflective target, a second person, and a lot of patience to get it to work beyond that.

Warranty

The Mileseey S50 comes with a non-transferable five-year warranty from the time of purchase, covering defects in workmanship and parts with repair or replacement. The buyer is responsible for shipping in the event of a warranty issue, so you should review the terms on Mileseey’s website.

Should you buy the Mileseey S50 Green-Beam Laser Measure?

Yes, if you want a high-quality professional distance meter at a fantastic price

A laser distance meter is one of those things you assume is overkill until you start using one. While we all learn to measure things as kids, traditional measuring tape is imprecise and much more dependent on the skill of the person doing the measuring than you might think. With the green beam laser distance meter, you’re going to get precise measurements down to 1/32nd of an inch with minimal effort indoors and out.

The Mileseey S50 Green-Beam Laser Measure (available at Amazon) is fast, easy to use, nearly self-explanatory if you’re a handy DIY-level person or a pro, and it gets the job done at distances greater than 120 feet—way beyond any tape measure. While those long-distance outdoor measurements pose their own challenges (try spotting a tiny green dot that far away), they can get the job done if you take the time to prep and use the S50’s features correctly. It also offers built-in calculations for area, volume, indirect height, and point-to-point measurements, and includes a built-in digital bubble level—all features usually found in more expensive meters.

The main thing I’d recommend is investing in a small tripod for the S50—just a basic one will do. It’s a little clunkier, but for a tiny investment, you’ll get the most out of the S50, including point-to-point measurements and easier long-distance reads. Either way, for just about any measurement task you can think of, this is a fantastic device to have in your bag.