The larger iPhones are excellent for viewing media of all kinds, even (some would say especially) video. I have an iPad Pro which in theory is a great video-viewing device, but because of where I use it, I have to sit hunched over a table top, which isn't ideal for extended periods of time. My XS Max can be used in any number of situations, which is a huge advantage. But more importantly, I've found that the experience of watching video on the iPhone is very different psychologically compared to my big TV or even the 10.5" iPad. There is a degree of intimacy when using the iPhone which makes viewing video a more personal and involving experience. Viewing long movies on the XS Max screen isn't always practical, but subjectively it can be very satisfying and even rewarding.