MILESEEY S 50 Laser Measuring Meter
MILESEEY S 50 Laser Measuring Meter Review
Handheld Laser Measuring Devices are Four Decades Old
In 1993, Leica Geosystems introduced DISTO, the first-generation laser distance measuring tool. While cumbersome and bulky by today’s standards, it opened an era of accurate and precise layout and measurement in the design, engineering, and construction industries. These devices replaced the specialized surveying equipment that oftentimes needed a tripod and two people to operate. The MILESEEY S 50 Laser Measuring Meter is a new handheld laser distance measuring device that can operate up to 400 ft within an accuracy of 1/16”. The MILESEEY S50 marks another step in the progression of value priced and highly accurate measurement tools.
MILESEEY S 50 Features
We routinely use multiple laser devices, ranging from a quick, simply featured pocket-sized red laser that simply measures Point A to Point B measurements; to a 400 ft camera equipped top-end device that I use for complex measurements and calculations. The MILESEEY S 50 has many of the same features along with some additional ones as my high-end device. Here are the major features of the MILESEEY S 50 make it noteworthy:
- Green laser technology that is extremely bright, even in broad daylight
- Accuracy of measurements to 400 feet within a 1/16 of an inch.
- 18 built-in calculation algorithms along with a wide variety of options in setting up the S 50.
- A nice, bright 2.4” diagonal screen that can be set to light or dark backgrounds.
- Bluetooth integration to the Life Smart app on iOS or Android platforms to record and store data.
- Ability to change the line alignment from front to rear and a tripod-centered setting. The S 50 also has a unique built-in side laser for alignment and placement.
MILESEEY S 50 Laser Measuring Meter Specifications
| Measuring range | 0.16ft~400ft (0.05m~120m |
| Min. Accuracy | ±1/16” |
| Reference Points | Front / Back / Side Laser Alignment / Tripod |
| Memory | 30 sets of data |
| Auto Power Off | After 180 seconds of no operation |
| Display | 2.4-inch IPS color display |
| Battery Type | Two AA rechargeable NI-MH batteries |
| Charging Port | USB-C |
| Laser Class | Class 2 |
| Laser Type | 500 to 530 nanometers <1 milliwatt |
| Laser Type (Side Laser) | 630 to 670 nanometers, <1 milliwatt |
| Operating Temperature | 0° C to 40° C |
| Storage Temperature | -10° C to 60° C |
| Maximum Relative Air Humidity | 90% |
| Maximum Altitude | 2000 meters |
| IP Rating | IP 54 |
| Dimensions | 131 by 61 by 31 millimeters |
| Weight | 145 grams |
MILESEEY S 50 Calculation/Measurement Routines
| Single Measurement | YES |
| Continuous Measurement | YES |
| Area | YES |
| Wall Area | YES |
| Volume | YES |
| Stake Out | YES |
| Indirect Length | YES |
| Indirect Height | YES |
| 2X Indirect Height | YES |
| Point To Point (P2P) | YES |
| Trapezium | YES |
| Triangular Area | YES |
| Circular Area | YES |
| Cylinder Volume | YES |
| Addition / Subtraction | YES |
MILESEEY S 50 Settings Options
| Measurement Units | M, cm, mm, ft, inch 1/32, inch, 1/16, 0’0” 1/32,0’0”1/16, |
| Link | On / Off |
| Display Rotation | On / Off |
| Offset Correction | Input offset value |
| Timer | 0, 3, 5 second delay |
| Background Color | Light / Dark |
| Font Size | Large / Small |
| Beeper | On / Off |
| Digital Level | On / Off |
| Favorite Functions | Select Favorite Functions |
Evaluating the MILESEEY S 50
The first test we ran for the MILESEEY S 50 Laser Measuring Meter was to set up a jig on a desk and aim difference lasers at the same location on a wall about 20 feet away. Each of the lasers measured the distance at the same dimension as the S 50.
The next test was to determine the accuracy of the MILESEEY S 50 Laser Measuring Meter in relation to other lasers we own. We marked the width and height with target markers to ensure that we took each measurement at the same locations. Again, the S 50 and test lasers calculated the area of the test wall with the identical calculated answer.
We ran through the various area, volume and Pythagoras functions and found the graphic hints useful and easy to master. The ability to see the graphical suggestions was a feature we liked without having to revert to a different screen or page to an alternate portion of the User Interface. The S 50 earned very high marks for the step-by-step graphic instructions.
Point-To-Point Measurement
Since the MILESEEY S 50 Laser Measuring Meter provides a of Point-to-Point (P2P) measurement capability, we ran a test to see how it worked. There is a small soffit in our shop that we elected to measure that is above a sink and represented a remarkably close example to the graphics shown on the S 50 graphic examples.
The dimension between the corner and the laser target is 48 ½ inches according to our FatMax tape measure.
We set the MILESEEY S 50 Laser Measuring Meter on the tripod mode and used the built-in bubble level to set the device level. We took a measurement according to the graphic hints. The test results yielded a reading of 51.5 inches. We repeated the tests several times and the readings clustered around a 51-inch value.
True Point-to-Point measurement is a 3D trigonometric solution that depends upon three variables. These variables are a distance measurement, a vertical angle measurement and a horizontal angle between the two points. A laser measuring device like the S 50 can accurately provide the distance and vertical angles within fully accurate limits. It cannot provide the horizontal angle and must rely upon mathematical algorithms to fill in the needed information and produce a resulting dimension.
We asked the MILESEEY engineers how we could produce the best possible P2P readings, and this is what they gave us as an answer:
Measurement Precautions
- A tripod is required for measurement. Please set the reference to the tripod reference, and the tripod must not be moved during the measurement process. After measuring the first point, pause for 1 second before proceeding to measure the second point.
- The recommended straight-line distance to the measured object is within 10 meters. When measuring the vertical distance between two points, the angle between the two points must be within 25°.
- The greater the distance to the measured object, the larger the deviation; the larger the angle when measuring two vertical points, the larger the deviation.
Cause of Error
The machine itself has relatively small precision error; the main error is caused by the change of the reference point when the angle is rotated.
They also indicated that the variation in accuracy would be around ± 3%.
This information tracks with the variation that we measured. The bottom line is that without the ability to accurately provide the horizontal included angle, the Point-to-Point results from a simple laser measuring device will be a reasonable approximation of the actual dimension.
A unique S 50 feature – Side pointing laser
One of the unique features of the MILESEEY S 50 Laser Measuring Meter is the second laser that shines out of the side of the device. This feature is useful if the user wants to take a measurement from the centerline of a column to the outside wall. The side-shining laser allows the user to visually ensure the user aligns the laser with the middle of the column. While there are other more complex ways to do this alignment, the side laser makes this alignment easier and quicker.
A suggestion for the MILESEEY is to create a slit in the rubber over-mold to enable the red laser to shine farther vertically. Currently, the case material blocks the laser light. The cut-off of the side laser is visible in the following pictures.
Green Laser – Outside Visibility
The green laser technology is far superior to a red laser in outdoor conditions. Green laser light is much more sensitive to and capable of being seen by the human eye. We evaluated the difference between the two laser lights in a parking lot in mid-day Florida sunshine. At 67 feet, we could no longer see the red laser light. The MILESEEY S 50 green laser dot was clearly visible as seen in the following picture. We moved the MILESEEY S 50 across the street (an additional 45 feet), and the user at the laser device could no longer see the dot, but the dot was clearly still visible to another person located at the target building.
Flexibility of Measurement Datum
The MILESEEY S 50 Laser Measuring Meter is the first laser measurer that has four laser datum points for measurement. The most used one is the datum located at the rear of the device. We use this feature for determining dimensions like the inside wall-to-wall dimensions of a closet.
Sometimes the user requires the datum at the front of the measurer. The S 50 accommodates this need as well.
Where the S 50 breaks out of the pack is the location of a datum right at the centerline of a tripod mount. Many laser measurers have a tripod datum location, but the mounting hole is offset to one side of the device and not truly in the centerline of the device. While this may seem inconsequential, and we have not thought through all the nuances, we like the location of the S 50 datum in a symmetric position.
Finally, the tripod location lines up with the side-positioned laser of the S 50. We found this arrangement of the laser datum to be convenient when wanting to take a reading of distance between the centerline of a column to the outside wall of the building as an example.
App Integration
The MILESEEY S 50 is Bluetooth equipped and allows connection between iOS and Android smartphones and tablets, and the SmartLife App. Users can create sketches, log floorplans, and create other documents directly in the SmartLife app. The App supports Excel, CSV, and image exports. Store up to 30 records on the device and enjoy unlimited cloud backup for every project. The app is intuitive and easy to use. A SmartLife sketch of our front office area follows:
Screenshot
MILESEEY S 50 Laser Measuring Meter Price
At the time of its introduction, the MILESEEY S 50 will have a MSRP of $139.99 USD. As it is a new product, MILESEY is offering an incentive of $40 off on Amazon during the first month (till Oct. 22nd).
As a basis for comparison, the Bosch GLM165 is for sale on Amazon at a MSRP of $189.00. I have used the Bosch Blaze units for years and the MILESEEY S 50 has many additional features and capabilities, not the least of which is a substantially longer range of 400 feet. I look at the S 50 as an excellent value at its MSRP pricing. It is a spectacular value with the incentive for such a fully featured device.
Who is MILESEEY?
MILESSEY was founded in 2009. In its 26 years, MILESEEY has grown into a global force, with a presence in over 100 countries and more than 10 million users worldwide. The company holds over 300 patents in laser and optical technologies and has pioneered multiple industry firsts, including the first green-light laser measurement device. You can find more information at www.mileseeytools.com
MILESEEY’s Post-Purchase Challenge
This season, MILESEEY TOOLS has partnered with HomeTalk, the world’s largest DIY home and garden community, to launch the #50KHomeGlowUpChallenge. Running from September 24 to December 24, 2025, the campaign invites both professionals and DIY enthusiasts to share their most inspiring home transformation projects—with a total prize pool of $50,000.
The challenge builds on MILESEEY’s positioning of “Professional Precision + User-Friendly for the Masses,” and highlights how precise measurement can turn creative ideas into professional-quality results.
At the heart of the#50KHomeGlowUpChallenge is the same MILESEEY S50 Green-Beam Laser Distance Measurer that we outlined in this review.
