IPhone X
IPhone X versus other models
https://www.apple.com/iphone/compare/?afid=p238%7Cs8x2J0ynG-dc_mtid_20925d2q39172_pcrid_221539685277&cid=wwa-us-kwgo-iphone-slid--
https://www.apple.com/iphone/compare/?afid=p238%7Cs8x2J0ynG-dc_mtid_20925d2q39172_pcrid_221539685277&cid=wwa-us-kwgo-iphone-slid--
Older IPhones 5 and 4s
https://www.digitaltrends.com/apple/apple-iphone-5-vs-iphone-4s-spec-showdown/
https://www.digitaltrends.com/apple/apple-iphone-5-vs-iphone-4s-spec-showdown/