Capacity
The total volume of the pan, roughly speaking, is the amount of food that fits in it in one “load”. This parameter is somewhat secondary — when choosing a frying pan, the type and size still play the main role (see the points above), and the volume is directly related to them. However, it can be useful when choosing among similar options: usually, the larger the estimated cooking volumes, the larger the pan is better to take.
Wall height
The height of the walls is selected by the manufacturer depending on the type of pan (see above) and its size, however, similar products may vary in the height of the sides. In such cases, it is worth considering the features of the intended application. So, high sides are convenient for stewing, preparing sauces and other types of cooking that involve a large amount of liquid; in addition, they allow you to fit more content. On the other hand, deep pans are more expensive and heavier. The shallow depth, in turn, makes it easy to flip pancakes, omelettes and other similar dishes, but reduces capacity.