There is some marks of using on the phone not no crack , not affect using .
Tested , Unlocked accept 4G networks ， All buttons ,screen , battery , camera ,calling ，WIFI, all are full working
iphone 5C run iOS 10, iphone 5 run ios 10, iphone 5s run ios 12
They are old version phone , many App or website no longer compatible with old verison iOS . maybe your sim cards can't work with this phone , beuae these phones are too old .
All phone are clean apple ID and IEMI , but apple stop provide serivice for the ios under 12 ,so maybe you can't sigin in your apple ID in thiese device.
Package contents: One mobile phone and one charger