The beam divergence of rangefinders is not an indicator of their quality at all. If you compare the beam divergence of the Terrapin X 1.2 mil x 0.5 mil and the PLRF05 0.4 x 2.4 mil, then the Terrapin X has a better one, but the PLRF 05 leaves the Terrapin X far behind in the ability to determine the distance of small targets. The PLRF25 has an even worse beam divergence of 0.7 x 1.70 mil, but there is no better rangefinder.
Here is another example from Vectronix, PLRF25, Vector 23's efficiency in measuring the distance to the same target on a bright day is reduced by almost three times. Therefore, for an accurate comparison, measurements must be taken in the same conditions. Because due to lighting conditions, the same rangefinder can measure the distance to an object on one day, but not on another day.