Determine device (iPhone, iPod Touch) with iOS

Question

Is there a way to determine the device running an application. I want to distinguish between iPhone and iPod Touch, if possible.

Answer 1

To identifiy iPhone 4S, simply check the following:

var isIphone4S: Bool {

    let width = UIScreen.main.bounds.size.width
    let height = UIScreen.main.bounds.size.height
    let proportions = width > height ? width / height : height / width

    return proportions == 1.5 && UIDevice.current.model == "iPhone"
}