- XS because it's the perfect spec bump, you can use it in one hand and you don't compromise on the OLED which you would if you went for the R. I'm sticking to my X but if I hadn't upgraded last year I'd go for the Space Gray 256 gig XS 🙏if coming from the 7, I assume you may still enjoy the form factor. I would get the Xr probably. It’s cooler looking and has basically the same specs.I went with the Space Gray XS 256GB. Upgraded from an iPhone 8 Plus. The screen size comparison between the 8 Plus and XS sold it for me. Having the same screen size to the 8 Plus in a smaller form factor is what I'm most excited about. Also, OLED.