We did some math last night on the iPhone screen based on the 326ppi that Apple currently uses for Retina handheld devices. We did some rounding and got just over 3.95 inches diagonal. Rounding on numbers this important is a bad idea, so today we decided to let the calculator keep all of those decimals.

Here is Pythagoras:

1136Pixels/326PPI=3.484… inches for one side

640Pixels/326PPI = 1.9632…inches same as the current

Square both sides: x^2 + y^2 = 15.9924. Take the Square root…

3.9990511674646 ~ 4 inches.

If this iPhone becomes the one Apple sells as the “new iPhone”, then we will likely see it called a “4-inch iPhone”.

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