You have no option however to purchase apple iphone if you want a smart device with upgraded OS. Apple is the only business that manufactures apple iphone as well as makes use of iOS mobile os. It has full control over the OS upgrade that adds most recent and also greatest features to apple iphone. As quickly as Apple sends out an OS upgrade, users around the world are able to download it on their apples iphone. On the various other hand, Android phone makers are extremely sluggish regarding upgrading the OS variation and also in some cases do not offer upgrade whatsoever. Some individuals likewise complain that their cellular phones with older Android OS do not sustain all sorts of applications. If you still wish to purchase an Android smart phone, ensure you get the branded one.