Display size is an ever growing important feature in modern smartphone. Having as big display as possible is a current trend in the smartphone market. New trend of bigger aspect ratios are enabling bigger displays to be fitted fueling also development of other technologies such as notches and punch holes. This report forecasts the display size by different price tier and It can be used by component manufacturers, handset vendors, operators, vehicle makers and developers to identify or prioritize the most popular display features penetrating billions of mobile devices worldwide.