Sarah: Really, I think the screen is what makes the iPhone X worth buying. The iPhone X display is bigger, and the quality is so much better while the size of the phone is smaller. David: As far as arguing that you don't need the X, the main reason is money. The X is the better phone, but the main advantage of the X is a nice screen. If you don't particularly care about having the latest and greatest display, it's a lot of money to spend.