Within the world of mobile touchscreens, there is one big player when it comes to manufacturing for all major brands. Samsung owns approximately 95% of the market share in mobile screens. They even manufacture screens for Apple iPhones. With only one major manufacturer, shortages on phone parts, especially touchscreens are the new normal in this industry.
The Samsung Galaxy S7 and S8 have been out for a number of years now but they are still used by many people around the globe. Replacement screens for these devices are in hot demand even today, but one is a lot tougher than the other because of the type of glass used in the screen.