https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/MobileHIG/LaunchImages.html#// APPLE_REF/DOC/UID/TP40006556-CH22-SW1 (closed)
Icon Size Mesh
Four Generations 960:640
Five Dynasties 1136:640 x 568
Iphone6 1334:750
Iphone6 Plus 1920:1080
iphone1,3.5 inch, ratio 4:3
iphone2,3.5 inch, ratio 4:3
iphone3,3.5 inch, ratio 4:3
IPHONE3GS, 3.5 inch, proportional 4:3
IPhone4, 3.5 inch, proportional 4:3
iphone4s,3.5 inch, ratio 4:3
iphone5,4 inch, ratio 16:9
iphone5c,4 inch, ratio 16:9
iphone5s,4 inch, ratio 16:9
iphone6,4.7 inch, ratio 16:9
iphone6plus,5.5 inch, ratio 16:9
Apple has not produced iphone1, 2, 3 of these three types of mobile phones.
The history of the iphone is as follows:
1) The first generation of Apple phones, called iphone,2007.6.29, was discontinued in 2008.
2) The second-generation Apple phone is called the iphone 3G, released in 2008.7.11 and discontinued in 2010.6.7.
3) The third generation of Apple phones called iphone 3GS was released in 2009.6.19 and 2012.9 discontinued.
4) The fourth generation of Apple phones is called iphone 4 on sale in 2010.6.24.
5) followed by 4S, 5, 5S and so on.
Apple machine (will keep updating)