In an interview was stated: „The OnePlus One has one of the best screen/front space ratios on the market.“ The best screen ratios are like this:

So I assumed it should have at least 72%, otherwise it wouldn't be one of the phones with the best ratio. I just made some calulations and came to the conclusion that the phone height shouldn't be more than 147.2 mm. (The Xperia Z1 has a height of 144.4 mm, this would explain why they did't show the whole Xperia when teasing us.)

Calculation:

- We know from the lockscreen leak that screen raio is
**16:9**. So the viewable screen dimensions would be **121.8 x 68.5 mm**.
- So the surface area of the screen alone is 83,39 cm²
- OnePlus One can't be wider that 73.9 mm since we were told that we „saw“ it under a Xperia Z1. So I assumed a minimuim witdh of 71.5 mm to hold the screen (that would be 1.5mm bezels at both sides) and a maximum width of 73.8 mm to fit under the Xperia Z1.

**If screen ratio is 75%:**
*With an assumed width of 71.5 mm the resulting height would be 145.8 mm. (see note below)*
With an assumed width of 72.5 mm the resulting height would be

**143.8 mm**.

With an assumed width of 73.0 mm the resulting height would be

**142.8 mm**.

With an assumed width of 73.5 mm the resulting height would be

**141.8 mm**.

With an assumed width of 73.8 mm the resulting height would be

**141.2 mm**.

**If screen ratio is 74%:**
*With an assumed width of 71.5 mm the resulting height would be 147.0 mm. (see note below)*

With an assumed width of 72.5 mm the resulting height would be **144.9 mm**.

With an assumed width of 73.0 mm the resulting height would be **143.9 mm**.

With an assumed width of 73.5 mm the resulting height would be **143.0 mm**.

With an assumed width of 73.8 mm the resulting height would be **142.4 mm**.

**If screen ratio is 73%:**
*With an assumed width of 71.5 mm the resulting height would be 148.1 mm. (see note below)*
With an assumed width of 72.5 mm the resulting height would be

**146.1 mm**.

With an assumed width of 73.0 mm the resulting height would be

**145.1 mm**.

With an assumed width of 73.5 mm the resulting height would be

**144.1 mm**.

With an assumed width of 73.8 mm the resulting height would be

**143.5 mm**.

**If screen ratio is 72%:**
*With an assumed width of 71.5 mm the resulting height would be 149.3 mm. (see note below)*
With an assumed width of 72.5 mm the resulting height would be

**147.2 mm**.

With an assumed width of 73.0 mm the resulting height would be

**146.2 mm**.

With an assumed width of 73.5 mm the resulting height would be

**145.2 mm**.

With an assumed width of 73.8 mm the resulting height would be **144.6 mm**.
Actually I can hardly believe that the assumed 71.5 mm phone width would be enough to hold the screen. As you can read

here, the 5.5 inch WQHD display by JDI has full dimensions of

**70.94 x 128.26 mm**, since it has some borders itself. So there would only be 1.56mm left which would mean 0.78 mm on both sides to hold the screen!!! Is that possible? The 1080p display in the OnePlus One will also have some little borders. Does anybody know what could be the minimum width to hold such a screen with a viewable width of 68.5 mm and a real width of about 70.94 mm?

So I assume screen ratio will be more like 72% or worse.

** Because ****if**** screen ratio would be 75% or better the OnePlus One would completely fit under a Xperia Z1 no matter what the width is and they could have shown it like that.**
As others have observed we can actually vaguely see the bezel of the OPO under the Z1. If we assume a width of 73.8 mm this translates to a height of 144.6 mm which would not fit under a Z1 which would explain the cut-off-teasing-picture.

So I think I can claim with an anticipated success rate of about 72% that the dimensions of the OnePlus One will exactly be nearly 144.6 x 73.8 mm or something similar. Sure, all this depends on the assumption that they didn't show the whole Z1 because otherwise we could have seen a bit of the OnePlus One. What do you think?

Kind regards,

OneOver „Sherlock“ Zero

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