# [R], 175 bytes

<!-- language-all: lang-r -->

    cat(paste('iPhone',c('3G','3GS','4','4S','5','5c','5s','6','6 Plus','6s','6s Plus','SE','7','7 Plus','8','8 Plus','X','XR','XS','XS Max','11','11 Pro','11 Pro Max')),sep='\n')

[Try it online!][TIO-k7j171ya]

[R]: https://www.r-project.org/
[TIO-k7j171ya]: https://tio.run/##K/r/PzmxRKMgsbgkVUM9MyAjPy9VXSdZQ93YXV0HSAQDSRMQBjFMQTgZRBQDCTMQVgjIKQVzIASMG@wKJMxBGCZiAcIwTgQIB4GIYDCh4JtYAWQYGoIJhYCifDgDLKWpqVOcWmCrHpOnrvn/PwA "R – Try It Online"

Manual is shorter than this programmatic take:
# [R], 231 bytes

<!-- language-all: lang-r -->

    r=rep;b='';m='Plus';cat(paste("iPhone",paste0(r(c(b,3:6,'SE',7:8,'X',11),c(1,2,2,3,3,1,2,2,4,3)),c(b,'G','GS',b,'S',b,'c','s',b,'s','s',r(b,6),'R','S','S',r(b,3))),c(r(b,9),m,b,m,b,b,m,b,m,r(b,3),'Max',b,'Pro','Pro Max')),sep='\n')

[Try it online!][TIO-k7j17ebe]

[R]: https://www.r-project.org/
[TIO-k7j17ebe]: https://tio.run/##LYzNCsIwEIRfRXqZBPZgrVRtyVE8CcVePHhpQkDB/pBU8O3jJpFllm@H2XEhOOXs0moFtKNC9/54tGZYxTL41Yri1T3nyRaUzq1wwghNVVMT@jPo0BwJd1BZSjKipB1PxZNpT5WMviZcwOpBjHkbNnwin8lxrJaEG1IkKlrcECsiniSN/BCl/5QThOvwTV2dm5H2Jjr86e2i8JggQ/gB "R – Try It Online"