The iPhone 5 was the last true black iPhone.
The iPhone 5s Space Gray does not count. It's gray. Gray is a shade of black, yes, but gray is not 100% black.
Yes, the Space Gray iPhone 5s has black windows in the back and a black front. But the casing and the back metal are all gray. Lay down a 5s next to a 5 and it will be immediately apparent that the iPhone 5 is black. Yes, the iPhone 5 has a dark gray back (Slate), but even that gray is much darker than the gray of the Space Gray 5s. Also, the casing of the iPhone 5 is black.
And the 5c does not come in black.
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I don't
start anything!
I am a Graphic Designer by profession. A percentage of black is gray and not black. It's not my fault that lots of people want to call their gray iPhones black. I don't make the color rules.