Can I test my iPhone 4 and iPhone 5 apps on an iPad mini retina I'm new to the iOS world. I'm developing iOS apps but I have no device for testing, so finally I have decided to buy a device, but I'm confused which device to buy.

I want to test my app for both iPhone and iPad, so I decided to purchase iPad mini with retina.

Can I test my iPhone 4 and iPhone 5 retina apps and graphics on the iPad mini with retina?
Yes, you can run iPhone apps on a retina iPad mini but you cannot test anything that may rely on the hardware features that exist in the iPhone but not the iPad - namely the GPS. If you buy an iPad Mini with Cellular, I think you'd be all set.