Binocular Microscope: It has two eye pieces
Monocular Microscope: It has one eye piece
One difference between Monocular and Binocular is the physical look and the way to use them. Binocular comprised of two lenses and easy to use for a long time. Monocular looks like a telescope, it has a single lens. It is hard to use for a long time. If you are a hunter or viewing objects for a long time, then binocular will be the best choice, because it can be easily used because both lenses will help you to find the object.
Size and Weight:
Monocular is smaller than a binocular and can accommodate easily in pocket to carry. Binocular is bigger and heavier than monocular, and you won’t carry them all the time with you because it occupies more space.
Viewing and Quality:
Monocular gives better and magnified view experience. You may find a bit flat compared the view you get from binoculars. But you get advantages from binoculars because they have 2 lenses and give you three-dimensional view, overall depth and distance than with monocular. You have adjusted both lenses individually to get better focused at the same time. But in monocular you have only one lens and not adjustable.
Which one to chose?
Now let’s talk about what’s the purpose you are using Binocular or monocular. If you are bird watcher, see gaming animal, on a boat. It’s up to you, but in my opinion, the binoculars are best. Because of its wide field of view and two lenses. In my opinion, if you are a hunter or bird watcher binoculars is best for you.