Apple is testing an iPhone 6 with a 1704 x 960 resolution screen, 9to5Mac reports. The new resolution will be achieved by tripling the initial iPhone “base resolution” of 568 x 320. On a 4.7” screen, the pixel density would be 416 PPI; on a 5.5” screen, the density would be roughly 356 PPI. The aspect ratio will remain 16:9 — though not quite full 16:9 HD, which would be at 1920x1080 resolution, and would allow for 1:1 pixel…
