The website Bling My Thing:
We’re pretty sure they aren’t far off from the truth.
Two sizes – 4.7 inches and 5.5 inches Screens made entirely out of sapphire crystal Pixel density of 441 pixels per inch, from the current 326 ppi display
There will be optical image stabilisation for the 8 megapixel camera f/1.8 aperture lens – an improvement over the iPhone 5s’ current f/2.2 lens New 802.11ac Wi-Fi standard Pressure, temperature and humidity sensors Possibly a solar power charger built into the screen All we can do is sit back and wait till around September 2014!
Please note that this are just a dummy prototype of a potential iPhone 6. I'm not saying that it couldn't be a real prototype though, but what I mean is that it's very easy to create these dummies. And if it is the real deal, there is nothing that says that the final iPhone will look like it.
I must say that the size seems to be perfect though. I would buy it in an instant.