It seems the world’s first 4K smartphone, Sony’s Xperia Z5 Premium, won’t always display content in 4K, or upscale 108op content to 4K resolutions like many Ultra HD televisions.
When the device was revealed earlier this month, Sony boasted about its 5.5-inch 808ppi display that crams eight million pixels onto a single screen. To put the Xperia Z5 Premium’s pixel density in perspective, Samsung’s Galaxy S6 features a Quad HD Super AMOLED display with a 2560×1440 557ppi screen.
But according to PhoneArena, at IFA the Z5 Premium’s display only displayed content at a 1080p resolution, rather than the advertised 2160 x 3840 resolution. The Z5 will be able to render 4K pictures and video in Sony’s native gallery and video player, and some speculation indicates users will be able to set 4K backgrounds as well. However, Sony has not recreated the Xperia’s UI in 4K or upscaled it to a resolution above 1080p.
The counter argument to this issue is rendering a 4K interface would put unnecessary strain on the device, causing the Z5 Premium’s Snapdragon 810 to slow down significantly, as well as likely limit battery life.
Below is Sony’s official statement on the subject:
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