Xperia Z5 lineup Launched [This thread is featured in Phonearena]

[jos]

This thread is mentioned in phonearena...

[jos]

Got a link?

http://www.phonearena.com/news/Xperia-Z5-Premium-may-have-a-1080p-interface-render-only-media-in-4K_id73531

[JuztBe]

And couple months ago I read:  "Sony doesn't see the need for higher resolution phones" . 
http://linustechtips.com/main/topic/376955-sony-doesnt-see-the-need-for-higher-resolution-phones/page-1

[TheKDub]

I'd absolutely love to get the Z5, if only it wasn't so damn expensive... 

 

Maybe it will drive down the price of the Z3? Hopefully?

 

Otherwise I'll end up just going with a 64GB ASUS Zenfone 2..

[SirNumbers]

I'd absolutely love to get the Z5, if only it wasn't so damn expensive... 

 

Maybe it will drive down the price of the Z3? Hopefully?

 

Otherwise I'll end up just going with a 64GB ASUS Zenfone 2..

The Z3 was on sale for 300 on the sony store like 2 months ago which is insane

[TheKDub]

The Z3 was on sale for 300 on the sony store like 2 months ago which is insane

 

Damn...

 

If it goes down that low again I might get that instead of the zenfone lol

[ahjolinna]

It seems almost everything is actually rendered in 1080p and then upscaled to 4k and this should according to Sony give the 2 day battery life. What do you guys think? is this a good or bad move/idea?

 

Sony's Xperia Z5 Premium is the world's first phone with a 4K resolution display, cramming 8 million pixels in a 5.5" display for the breathtaking 800+ ppi pixel density for the first time on a mobile device. How huge is the gap with the next best thing in pixel density? Well, the Galaxy S6 with its Quad HD Super AMOLED display has 577ppi, for instance.

 

When we took screenshots of the Z5 Premium's display at the IFA expo, however, we noticed that they all show 1080p resolution, not the display's actual 2160 x 3840 pixels count. There are quite a few forum threads dedicated on this development already, hinting that the world's first 4K phone won't always run the native screen resolution, especially when it comes to the Android interface. It seemed that you will be able to render 4K media like pictures and videos in Sony's native gallery and player in their full glory, perhaps even set 4K wallpapers, but when it comes to the Xperia UI, it hasn't been redrawn by Sony, or upscaled further than 1080p. 

 

At the time, most comments on the matter argued that this actually makes sense, as rendering a 4K interface around would place unnecessary strain on the graphics subsystem, leading to Snapdragon 810 performance slowdowns, and/or a battery life hit. These can be easily avoided by enabling 4K only where it matters most - in the camera/gallery, and during video playback and upscaling.

 

Well, now we have Sony's first official statement on this pressing 4K matter, and they explained to us exactly why the company went with the 4K-on-demand concept for their seasonal flagship:

 

"Xperia Z5 Premium features a 4K display with a resolution of 3840x2160 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."

Just like the Z5 and Z5 Compact, the Z5 Premium is still listed as a "two-day battery" phone in Sony's feature sheet, despite its jaw-dropping display resolution, and now we know how Sony managed to pull this off. Granted, it has a larger battery than those two as well, but running the display in 1080p most of the time, and only firing up on all 4K cylinders when rendering video or images in such ultra high definition, contributes to having the battery stamina Sony's phones are now acclaimed for, despite sporting a display with record pixel density. There you have it.

 

 

source: phonearena

[The Official Czex]

I charge my phone everyday like clockwork; I don't mind battery life cuts if it means I get true 4K video. So, no, it is a terrible idea.

[LukaP]

GOOD NEWS!

[LukaP]

I charge my phone everyday like clockwork; I don't mind battery life cuts if it means I get true 4K video. So, no, it is a terrible idea.

your video will be 4k. your games will be 4k. just that the usual stuff like the UI and FB wont be rendered with 4x the pixels for no damn reason

[Sauron]

I think the following:

 

- a 4k screen on a phone doesn't make any sense at all.

- it makes even less sense if it's going to render stuff at 1080p. What the hell is the point?

- the 2 day battery life is nice if it's true; it only leaves me longing for what it could have been if they had been sensible and only used a native 1080p screen

 

just my 2c

[The Official Czex]

your video will be 4k. your games will be 4k. just that the usual stuff like the UI and FB wont be rendered with 4x the pixels for no damn reason

 

I know. I like the crispy pixels.

[Kryptic BladeZz]

Good idea! You don't need eye candy to browse the UI. It should also make it a little snappier on the 1080p content.

[LukaP]

I know. I like the crispy pixels.

Why the hell would you care if your UI is rendered at 1080p or 4k for sharpness? its a small screen, you literally wont notice the difference

[Warcony]

your video will be 4k. your games will be 4k. just that the usual stuff like the UI and FB wont be rendered with 4x the pixels for no damn reason

I figured this was what they were doing. Makes sense (though 4K on a 5.5" screen doesn't really).

Aside: Users better be sure that YouTube doesn't start playing in 4k while on data...Bye bye cap!

[Guest Philosophy]

My Z3 is absolute crap.. 

[The Official Czex]

Why the hell would you care if your UI is rendered at 1080p or 4k for sharpness? its a small screen, you literally wont notice the difference

 

Sometimes transition UI animations don't look as smooth in 1080p. Trust me, I'll notice the blur.

[ZetZet]

I think the following:

 

- a 4k screen on a phone doesn't make any sense at all.  True

- it makes even less sense if it's going to render stuff at 1080p. What the hell is the point?          It's a selling point. 

 

- the 2 day battery life is nice if it's true; it only leaves me longing for what it could have been if they had been sensible and only used a native 1080p screen     3 days.

 

just my 2c

[Real_PhillBert]

Why the hell would you care if your UI is rendered at 1080p or 4k for sharpness? its a small screen, you literally wont notice the difference

 

If you are not going to notice the difference, why bother putting a 4k display on your phone anyway. 

 

I honestly dont see any advantages. 

[LukaP]

If you are not going to notice the difference, why bother putting a 4k display on your phone anyway. 

 

I honestly dont see any advantages. 

Specs in a world where more resolution is more better.

Sometimes transition UI animations don't look as smooth in 1080p. Trust me, I'll notice the blur.

*insert facepalm gif* You sir do not have a basic grasp of display mechanics. What you are refering to (if anything) is either a refresh rate problem, bad panel with lots of ghosting, a software "motion" blur filter, or a combination of those factors.

 

Resolution has nothing to do with how smooth animations are. it has to do with how much detail is on screen and how thin the lines can be. and trust me, at a normal viewing distance of about 30cm, there is a big chance you cant see the difference between 1080 and 4k, because your eyes are limited in "resolution" to about  1.2–1.8 arc minutes per line pair, which implies a pixel spacing of 0.6–0.9 arc minutes. That is more than the pixel spacing of a 5.5" 1080p panel at 30-40cm

[The Official Czex]

Specs in a world where more resolution is more better.

*insert facepalm gif* You sir do not have a basic grasp of display mechanics. What you are refering to (if anything) is either a refresh rate problem, bad panel with lots of ghosting, a software "motion" blur filter, or a combination of those factors.

 

Resolution has nothing to do with how smooth animations are. it has to do with how much detail is on screen and how thin the lines can be. and trust me, at a normal viewing distance of about 30cm, there is a big chance you cant see the difference between 1080 and 4k, because your eyes are limited in "resolution" to about  1.2–1.8 arc minutes per line pair, which implies a pixel spacing of 0.6–0.9 arc minutes. That is more than the pixel spacing of a 5.5" 1080p panel at 30-40cm

 

Exactly. When the UI animations kick in, the lines of pixels are downsampled creating a blurred effect.

[LukaP]

Exactly. When the UI animations kick in, the lines of pixels are downsampled creating a blurred effect.

you deserve a proper facepalm gif now. 

 

1. There is literally no downsampling going on.
2. one doesnt downsample any "lines of pixels"
3. downsampling sharpens the image if anyhitng
4. this is upsampled, always, and 1080-4k upsampling (if done right) is without any interpolation.

[The Official Czex]

 

you deserve a proper facepalm gif now. 

 

1. There is literally no downsampling going on.
2. one doesnt downsample any "lines of pixels"
3. downsampling sharpens the image if anyhitng
4. this is upsampled, always, and 1080-4k upsampling (if done right) is without any interpolation.

 

 

Isn't the hardware originally outputting at 4K? 4K to 1080p is downsampling, not upsampling. If it's running at 1080p then getting upsampled to 4K, then I was wrong.

[LukaP]

Isn't the hardware originally outputting at 4K? 4K to 1080p is downsampling, not upsampling. If it's running at 1080p then getting upsampled to 4K, then I was wrong.

the screen is 4k. The software renders at 1080p, and then hardware upsamples it to 4k for the screen. I guess you just misunderstood the post

[The Official Czex]

the screen is 4k. The software renders at 1080p, and then hardware upsamples it to 4k for the screen. I guess you just misunderstood the post

 

Ah, OK, I see what it's doing now. Thanks, sorry about the missunderstanding. I thought it rendered and displayed @4K not 1080...