QA's should always have the resolution list by-heart as it would be helpful when asked either in meeting about a resolution of the device or during scrums. It's kinda easy to remember it if your remember the base resolution and apple devices are limited when you compare to Android. I know that some people would be "A google search would let you know the resolution of the device", but I feel this would be useful when you go for an interview too.
iPhone | Resolution |
iPhone 1 | 320*480 |
iPhone 3G | |
iPhone 3GS | |
iPhone 4 | 640*960 |
iPhone 4S | |
iPhone 5 | 640*1136 |
iPhone 5s | |
iPhone 5c | |
iPhone Se | |
iPhone 6 | 750*1334 |
iPhone 6s | |
iPhone 7 | |
iPhone 8 | |
iPhone 6s Plus | 1080*1920 |
iPhone 7 Plus | |
iPhone 8 Plus | |
iPhone X | 1125*2436 |
iPhone Xr | 828*1792 |
iPhone Xs Max | 1242*2688 |