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The time for wild analyst speculation is here again, and the confident claims about the next iPhone come less than a month after the unveiling of Apple's latest phone. Jefferies & Co. analyst Yesterday, Peter Misek published findings from his research intended for investors, in which he tries to reveal the direction the company will take.

In this document reported by the server BGR.com, a quote appeared that Misek strongly believes in a larger iPhone 6:

While we see risk in Q4 and FY2013 overall, we now believe that better gross margin will allow Apple to fare well before introducing the iPhone 6 with a 4,8" screen.

Although Peter Misek confidently throws information about an iPhone 6 with a larger display, even with a specific diagonal size, he probably does not have a solid basis for his claims, after all, he would not be the first analyst with wild predictions that never come true. Although I consider the information to be pure speculation, it might be worth considering whether such a device could even arise in the captured conventions.

It's no secret that Apple is testing a large number of screen sizes, both for the iPhone and the iPad. However, what Apple is trying is not telling, most of these devices will end their life cycle only as a prototype. There is no doubt that the 4,8-inch iPhone is among the test devices. But would such a device even make sense?

Let's summarize a few facts:

  • The current aspect ratio of the iPhone is 9:16, and Apple is unlikely to change it
  • The horizontal pixel count is a multiple of 320, any further increase in resolution would mean multiplying both the horizontal and vertical counts to avoid fragmentation
  • Apple will not release a new iPhone without a Retina display (> 300 ppi)

If Apple chose a 4,8-inch screen, it would lose the Retina display at the current resolution, and the density would be around 270 pixels per inch. To achieve a Retina display according to existing conventions, the resolution would have to be doubled, bringing us to a meaningless 1280 x 2272 pixels and a density of 540 ppi. Moreover, such a display would be extremely energy-intensive and very expensive to produce, if it could be produced at all.

I've written about the possibility before to create a larger iPhone, specifically 4,38" while maintaining a constant resolution and density of around 300 ppi. I can honestly imagine an Apple phone with a larger screen size than the current four inches, especially with slimmed down bezels around the display. Such a phone could have an almost identical chassis to the iPhone 5/5s. On the other hand, 4,8" seems like a meaningless claim, at least if Apple doesn't plan to fragment iOS with a completely new resolution.

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