What are the sizes of upright digital pianos?

Upright digital pianos are more widely used in home applications or piano classroom teaching. What is the difference between upright digital pianos of different sizes? Do pianos of different sizes have an effect on timbre? Here are some different sizes of upright digital pianos.
How much is the actual size of the general upright digital piano
Method/Process
The general 88-key piano, its piano keys plus both ear modules, the total width is between 3750px and 4250px (most contemporary family upright digital pianos are maintained around 3875px), and the total width of the front and rear left and right is generally 1750px. According to the height of the piano, it can be roughly divided into three vertical digital piano sizes: large and medium-sized, medium and small.
1. Large and medium-sized upright digital piano: also known as standardized upright digital piano, height above 3000px, suitable for small and medium-sized theaters, concert halls, auditoriums, etc., widely used in art schools, large and primary schools, etc. in China, its acoustic material quality and playing characteristics are very high, is the choice of many song staff to use the piano. Taking the specifications of the G-31 model of the Gunoli Digital Piano as an example, the actual size is 3875px(W)*1600px(D)*3300px(H).
2. Small and medium-sized upright digital piano: the height is in the middle of 2750px-120cm, which is suitable for occasions or home applications with relatively high application regulations, but small places. Yamaha column type EU118CPE mirror glass black model size: 149.5cm(W)*59cm(D)*118cm(H)
3. Small and medium-sized upright digital piano: the height is within 2750px, suitable for home applications, and it is rare in China's sales market at this stage.
How harmful is the height of the piano or the size of the piano to the piano tone? Is the higher the piano, the better the timbre? In fact, it is necessary to dissect it in detail.