2010 iPhone 4 32 GB 2012 iPhone 5 64 GB 2014 iPhone 6 128 GB 2016 iPhone 7 256 GB 2018 iPhone XS 512 GB 2019 iPhone 11 Pro 512 GB 2020 iPhone 12 Pro 512 GB
Ref:- https://lemire.me/blog/2020/12/22/in-2011-i-predicted-that-the-iphone-would-have-1tb-of-storage-in-2020/