Difference of Belgian Waffle and Wafer biscuit

A  waffle is a leavened batter  or  dough cooked between two plates, patterned to give a characteristic size, shape and surface impression. There are many variations based on the type of  waffle iron and recipe used. Waffles are eaten throughout the world, particularly in Belgium, which has over a dozen regional varieties
A  wafer is a crisp, often sweet and shaped, it is very thin, flat, and dry biscuit, and often used to decorate ice cream for people. Wafers can also be made into cookie with cream flavoring sandwiched between them. They frequently have a waffle surface pattern but may also be patterned with insignia of the food's manufacturer or may be patternless. 
A wafer is a crisp, often sweet, very thin, flat, and dry biscuit, often used to decorate ice cream. 
A waffle is a batter or dough-based cake cooked in a waffle iron patterned to give a distinctive and characteristic shape. It isn't dry. It's crispy on the outside and spongy in the middle(at least, mine are!)
A wafer has the same pattern as a waffle. a waffle is soft and fuffy when eaten. and a wafer is thin hard in crunchy. wafers are normally eaten in ice creem of deserts.
So when you buy wafer production line or waffle maker, you should know their difference between them.