Lasers red or green are for dark targets in marginal light.
Laser you can see in daylight.
Laser distance measure generally has a laser output of less than 1mw class 2.
Laser glasses effectively filter your vision to limit the light you see making it easier for you to identify your laser beam in daylight.
In some circumstances you may not be able to see it more than 3m 9 feet.
I find them highly effective for target shooting but it s easy to depend on them rather than good sight alignment and control.
So one device s laser brightness is pretty much the same as another.
Outside in full sun you will not be able to see the laser dot more than about 10 or so meters 30 feet.
It s basically the same principle used by the laser card but instead of creating a light filter in a small localized area it creates a light filter across your entire field of vision.