Sony further clarifies why Xperia Z5 Premium mostly runs at 1080p despite 4K display

Sony further clarifies why Xperia Z5 Premium mostly runs at 1080p despite 4K display
The Sony Xperia Z5 Premium is the first handset in the world to include a 4K display, and as we told in our hands-on coverage, it's a real joy to behold. But despite boasting an unholy number of pixels that comfortably trumps any other smartphone for density, there are quite a few caveats. As Sony mentioned shortly after the announcement of the Z5 Premium, the device only renders media in 4K, with the vast majority of the smartphone's experience set at a less extravagant 1080p. Noted at the time as a battery-saving measure, the Japanese firm has further clarified its stance on why the Xperia Z5 Premium's 4K display, for the most part, does not run at its native resolution. 

With a new 23-megapixel camera capable of 4K video, having a 4K display for viewing them can only enhance the user experience. However, Sony knows well that pushing an interface at 2160 x 3840 is going to wreak havoc with battery retention. While some may feel shortchanged that the 4K smartphone isn't always as sharp as it should be, Sony's explanation is a legitimate one:

Since most apps aren't built for 4K displays as yet, rendering applications and games in 4K mode would be a profligate use of resources:

The idea of future-proofing seems a noble enough cause, but one can't help wondering if this is a marketing ploy to set the Z5 Premium apart from the rest. Even to the average consumer, '4K' is an alluring buzzword, despite the fact that for the most part, users cannot make the most of it. 

After the stuttered arrival of the Xperia Z3+ and Z4, Sony needed a strong response, and on paper, the Z5 Premium is just that. But with its marquee feature being somewhat peripheral, early adopters may be waiting a long while to really make use of its capabilities.

If you are considering the purchase of an Xperia Z5 Premium, then the full article is well worth checking out at the source. 

source: Sony via AndroidCentral

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Xperia Z5 Premium
  • Display 5.5" 2160 x 3840 pixels
  • Camera 23 MP / 5 MP front
  • Processor Qualcomm Snapdragon 810, Octa-core, 2000 MHz
  • Storage 32 GB + microSDXC
  • Battery 3430 mAh(19.17h 3G talk time)



1. B-power

Posts: 258; Member since: Feb 22, 2014

Not even 1440p? Come on sony

10. deanylev

Posts: 234; Member since: Mar 11, 2014

There's a good reason. Scaling down 3840x2160 to 1920x1080 is an even 4/1 pixel ratio, which means 0 distortion and scaling artifacts. 3840/2 = 1920, and 2160/2 = 1080. 2560x1440 on the other hand would look warped and not scale right.

17. sreya8125

Posts: 1; Member since: Oct 01, 2015

ohh come on bro , why dont u manufacture a complete perfect phone , so that we all will be thankful to u #b-power

32. crazycompact

Posts: 17; Member since: Sep 02, 2015

PA do not be bad, When you will analyze Z5 Compact?

2. Norris

Posts: 121; Member since: Jun 26, 2015

Smart move by Sony

3. hafini_27

Posts: 949; Member since: Oct 31, 2013

This makes so much sense. No complaints at all.

4. Omarc07

Posts: 574; Member since: Nov 12, 2012

I want this phone !! I wish at&t would get it.

6. scramasax

Posts: 45; Member since: Mar 07, 2015

I will wait for the SD 820 and the Ultra version...

7. Zomer

Posts: 361; Member since: May 31, 2013

Lol the S810 isn't capable of rendering 4K content, so it isn't that futureproof.

8. Busyboy

Posts: 731; Member since: Jan 07, 2015

19. buccob

Posts: 2968; Member since: Jun 19, 2012

Yes, and even the 801 was capable of 2560x2048

30. alex3run

Posts: 715; Member since: May 18, 2014

SD805 cannot handle WQHD properly even though it is theoretically capable of UHD.

24. dimas

Posts: 3363; Member since: Jul 22, 2014

From what year are you living? It's not 2012 anymore.

35. marorun

Posts: 5029; Member since: Mar 30, 2015

Rendering picture and movie is a lots easier than UI and games.

13. ryq24

Posts: 875; Member since: Oct 17, 2011

If Sony is very confident with their lines of Z5 phones and they want to enter the US market they should give their phones to Marques Brownlee and have him review their phones. He is one of the best reviewer and influential guy in the US.

52. kent-gaga

Posts: 609; Member since: Apr 10, 2012

to bad their marketing team is having a permanent vacation somewhere else =.= As much as i love Sony, I still have to admit their marketing strategy is a disaster

14. jeroome86

Posts: 2314; Member since: Apr 12, 2012

Don't need 4k on smart phones. I was born with human eyes.

50. DonGateley

Posts: 5; Member since: Sep 05, 2015

No virtual reality HMD in your conceivable future, I take it.

53. kent-gaga

Posts: 609; Member since: Apr 10, 2012

you were born with human legs, so no need for cars you were born with human hands, so no need for forks ... 4k display on a phone of course is pretty much a "gimmick", according to many people, but it's also a first step for something better in the future just because you can't see it now doesnt mean it's useless for the rest of time

15. dayugdog

Posts: 8; Member since: Sep 30, 2015

At least Sony learned the hindrance of LG G3.

16. Genza

Posts: 576; Member since: Mar 12, 2014

After Phonearena removed the article about Xperia Z5 DxOMark Now they are ignoring the most important thing that Sony conveyed in the article. "We also believe Xperia Z5 Premium is capable of offering the clearest, sharpest Virtual Reality platform – we’re working on a few things here internally, so stay tuned for more news soon."

18. Wiencon

Posts: 2278; Member since: Aug 06, 2014

This is really shameful. #Z5DXOneverforget

21. buccob

Posts: 2968; Member since: Jun 19, 2012

Indeed, Virtual Reality is getting more and more attention, and this will be the best mobile device for VR. I really don't understand why PA is so bias against Sony.

36. marorun

Posts: 5029; Member since: Mar 30, 2015

You mean biased toward samsung right?

43. buccob

Posts: 2968; Member since: Jun 19, 2012


22. dimas

Posts: 3363; Member since: Jul 22, 2014

Who would want to see facebook, viber and tinder notifications in 4k anyway? Unless eagles and hawks know how to use phones, sony's approach on z5p display is not a deal breaker for me.


Posts: 9; Member since: Nov 25, 2014

well phonearena is funded by samsung and apple

28. alex3run

Posts: 715; Member since: May 18, 2014

That's easy. Snapdragon 810 has too weak GPU for 4K.

37. marorun

Posts: 5029; Member since: Mar 30, 2015

Nope its has all its need to Run 4K for the UI and normal app at least. for game thats may be another matter but for game no current SOC can run them at 4k anyway.

38. alex3run

Posts: 715; Member since: May 18, 2014

quite agree here. But... I don't think the UI speed will be stellar on UHD.

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