Sony Xperia Z5 Premium: Sony explains what 4K resolution really means

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The Sony Xperia Z5 Premium became popular for being the world’s first smartphone with a 4K resolutiondisplaying 8 million pixels with 880+ ppi pixels density rate on a compact 5.5-inch display. This display power tops even the most popular flagships of today. For example, the Samsung Galaxy S6 only has a Super AMOLED display with Quad HD resolution and a pixel density of 577 ppi.

But users have noticed that while the Xperia Z5 Premium boasts of a 4K resolution, it does not always give out the stunning display property. All functions on the phone are only at 1080p Full HD resolution, even on the device’s Xperia UI. It appeared that users can only enjoy the 4K resolution feature in the device’s native Gallery and Video Player app, and view 4K images and videos.

One reason pointed out is for the device to save battery, using only maximized display properties whenever needed (such as when watching videos of 4K resolution). Otherwise, the display remains at 1080p Full HD.

Sony has made an official statement in which it said: “Xperia Z5 Premium features a 4K display with a resolution of 3840×2160 pixels based on SID Standard and enables all video and image content to be enjoyed in 4K resolution. All other content is displayed at 1080P or lower resolution in order to optimise the performance and battery stamina for this device, ensuring you can enjoy the 4K resolution when you need it most.”

For refreshers, the Sony Xperia Z5 Premium sports a 5.5-inch wide screen with 2160 x 3840 pixels resolution, and with IP68 certification for water and dust proofing protection. It runs under an octa-core Snapdragon 810 processor, with Adreno 430 GPU. It packs 4 GB worth of RAM, along with 32 GB worth of built-in internal storage capacity, with support for external microSD expansion of up to 200 GB worth.

As for the camera, the device has a 23 megapixels rear camera that can record videos of up to 4K resolution. It also comes with a 5 megapixels front camera for seflies and video calling, which can record videos of up to 1080p Full HD resolution. The device is powered by a 3430 mAh battery.