The Apple iPhone SE has the body of an iPhone 5s, but the guts of the iPhone 6s. The chamfered edges work well in the compact size of the iPhone SE as a welcome change from the curved sides of the 6 and 6s series.
The iPhone SE costs almost as much as the iPhone 6s in India, but in the US, it costs almost half of its elder brother despite packing similar specifications.
As a result, the phone is sold out in the US, even though it has a small screen which a lot of people have suddenly developed a liking to that lacks 3D touch.