The fact that Apple still sells iPhone 5S at 32Gb in addition to 16Gb means that there might still be hope for 4" fans. If you're about to switch ecosystem and

The fact that Apple still sells iPhone 5S at 32Gb in addition to 16Gb means that there might still be hope for 4" fans. If you're about to switch ecosystem and hate anything but 4", I'd get the 5S, it's still a fantastic phone with a top-class processor, top-class camera, awesome screen, good battery, and whatnot. It'll still be updated for 2-3 years software-wise, so it's more than enough for an ecosystem jump; after all, in 3 years, you might want to jump again somewhere else for different reasons.