yashsingh1/xdaforums huggingface dataset:
[Xperia Z General] RCJ89:
Get white :D, I had a look at both black and white dummy models in my local three store and glad I chose white. Black to too ordinary for my liking.

@maverick1103, i am also coming from n2, I am not concerned about anything on this phone now tbh all reviews etc and my own xperia-nce (pun and incorrect spelling intended) with the phone taken into account. 28th is just too far away I know its getting closer but still feels ages away.
[Xperia Z General] maverick1103:
Well now after watching that one, I'm leaning towards the white one!! Dam it, I'm not sure now white or black! At first I said if the front screen was white too then it would be white, but then again I'm not keen on white iPhone's as when screen is off you can see the LCD...

Need to decide soon as pre-ordering mine Monday!
[Xperia Z General] RCJ89:
Well the front panel of the z is black no matter what colour the phone is but all in all I did a vote, I showed my friends/family images of the black and white one and which should I choose. Majority said black looks great but white is far better and the other simply said black was boring.

These are the images we looked at

http://www.mobile-review.com/review/image/sony/xperia-z/pic/01.jpg

http://www.mobile-review.com/review/image/sony/xperia-z/pic/02.jpg

http://www.mobile-review.com/review/image/sony/xperia-z/pic/05.jpg

http://www.mobile-review.com/review/image/sony/xperia-z/pic/20.jpg

http://www.mobile-review.com/review/image/sony/xperia-z/pic/21.jpg

http://www.mobile-review.com/review/image/sony/xperia-z/pic/22.jpg

http://www.mobile-review.com/review/image/sony/xperia-z/pic/25.jpg

http://www.mobile-review.com/review/image/sony/xperia-z/pic/26.jpg

http://www.mobile-review.com/review/image/sony/xperia-z/pic/27.jpg
[Xperia Z General] m00moo:
http://www.youtube.com/watch?v=xigKO8Q3SQY

A review posted in last couple of hours. Shouldn't be listed here. Lots of in depth detail and so far it looks good
[Xperia Z General] rufaz:
well, why not, both purple? :silly:
[Xperia Z General] ethan3686:
I still cant like the white one..it looks kind of wierd as though ur using some kind of a back cover for a black phone. It shud have been alll white. Black one for me!
[Xperia Z General] RCJ89:
Only my mum and my GF liked the purple, I have purple shirts but that is as far as purple goes for me lol. I think purple objects are more for females tbh. I wouldn't buy two of the same phone anyway, I would most have the XZ and the M7
[Xperia Z General] redandwhitearmy:
I dont know it is genuine or not but worth posting

Xperia Z used with fisheye lens great video

http://www.youtube.com/watch?v=PGnZOCt4WFU

http://www.youtube.com/watch?v=Ioi_FGNg1V0

http://www.youtube.com/watch?v=XLnC88TT5CY

http://www.youtube.com/watch?v=WC6JY6BPnIY

As the sound quality is too good my opinion is its unrealistic.
[Xperia Z General] maverick1103:
I think I agree with you, black looks boring the white seems to give it more of a premium look imho! Thanks for the share really good comparison of all colours! :beer:

---------- Post added at 12:02 PM ---------- Previous post was at 12:00 PM ----------

I know what you mean, but I prefer to have a black screen and white back and sides.... Compared to the white iPhone I don't like the way theirs, when screen is off you can see LCD screen and sensors I think it makes it look tacky! Just my opinion though.
[Xperia Z General] Shasarak:
Because in the UK the purple version is locked/branded to O2.
[Xperia Z General] stefanve:
added review by kobenobe:

xda thread: http://xdaforums.com/showthread.php?t=2152714

review: http://techfreak08.blogspot.nl/
[Xperia Z General] ethan3686:
that is one fanboy review..nothing is hands on..everything is from internet and things we already know.
[Xperia Z General] omersak:
http://www.gsmarena.com/sony_xperia_z-review-887.php

GSMArena review online,
[Xperia Z General] stefanve:
Very favorable review, thank
[Xperia Z General] omersak:
Yup, not really adding to what we already know - not the greatest screen/camera but still the best mobile phone out there.

Wanted to see some battery rundown tests but GSMarena didn't really add much to their preview. Still waiting.
[Xperia Z General] stefanve:
the screen measurements are considerably better than in the preview though contrast ratio of 700+ instead of 500+.

the measurements are really close to my Samsung tab 10.1v screen which I really like
[Xperia Z General] xl VipeR lx:
Also they did it at 100% we know the xperia z can get quite bright and loses contrast at 70%+ i was just really disappointed they did not show the values at 50% brightness!?!?!?
[Xperia Z General] omersak:
If the shipments arrive tomorrow, i might get to test the screen of a fresh, new xperia z straight out of the retail packaging. Make or break time!
[Xperia Z General] :
Its still a good review and im sure all us who are getting one will enjoy and love the screen. I dont really care what other say, as long as I enjoy the experience then thats all that matters. Ive done HTC and Samsung, time for a Sony for once.
[Xperia Z General] omersak:
Aren't you a tad bit annoyed though at how close Sony was to attaining utter and universal perfection?

Perhaps it being the closest one to do so is a big thing on its own.
[Xperia Z General] :
Yeah I wont hide that it does disappoint me about the screen contrast but I can live with it and I cant see it being something that im gonna sell the phone over. I'm guessing that its a software problem and Sony can fix it. A lot of talk about those kind of options in the retail units. Time will tell but I'll be happy with my new phone coming from a iPhone 5 (which im keeping for the best of both worlds :P )
[Xperia Z General] xl VipeR lx:
You could say that again!
[Xperia Z General] stefanve:
cool! hope you will!
[Xperia Z General] craftycarper1:
I'm sure these issues will be able to be "fixed" via incremental software updates.
[Xperia Z General] stefanve:
where would be the fun in that? now I get to enjoy looking for a better device in a year or two ;)
[Xperia Z General] xl VipeR lx:
Could this make it better you think?

Apparently this is the calibration tool
[Xperia Z General] stefanve:
I guess it will, since the BE dynamically changes contrast, saturation sharpness etc. Everyone says that the screen looks better with BE on, since it can't change the capabilities of the screen you should be able to get more saturated icons en more onscreen contrast.
[Xperia Z General] xl VipeR lx:
good point, i think this could be why SONY is releasing the calibration tool in a firmware update? to compensate for the display not upto par?
[Xperia Z General] Maedhros:
Hey everyone,

Please find a comparison of the ZL and the One X's screens below. The comparison is based on my own observations, nothing scientific :D
[Xperia Z General] redandwhitearmy:
It adds up a lot... photo comparison tool just compared Z , T and S samples definitely Z is better so i dont see a reason to criticize camera as noise can be reduced by ISO .....also finished watching photos so i would say as compared with other cameras

Lumia 920 >Xperia Z.... sadly but true...comparison tool says so...So much less noise and clear and more detailed photos even when Lumia 920 has 8.7MP sensor

but 1 thing i like is that Sony dsc hx5v( 10.2 MP cybershot with Exmor R) was very much comparable to XZ so i would say this is improvement..maybe even better in low light due to improves RS sensor... Sony has reached the level of digital cameras(with low pixel count) however ... still far behind similar pixel count sensors due to overprocessing and noise but improving slowly...

Olympus E-450 (10MP DLSR) tears XZ apart but cant blame XZ... but it tells us it is not about megapixels ... it depends on how your device utilize them

Another point is they never showed low light images so will have to wait till a camera based review comes up...
[Xperia Z General] stefanve:
Sony just likes very natural colors and calibrate the phone screen accordingly.

If you own a THX calibrated tv, or have a tv calibrated by a professional and you show the result to someone that owns a tv still in store mode they will say that the colors look dull and washout. I guess that a bit of over saturation is good for a phone/tablet since it makes reading easier and make icons and other UI elements stand out more.

a 700:1 contrast ratio should be good enough.
[Xperia Z General] TheKingOfPain:
Wow, GSMArena destroyed my expectations. 61 dB ringing phone vs. Xperia U's 72 dB, and I can barely hear it ringing...
[Xperia Z General] RCJ89:
tbh i find the speaker on the Z louder than on the T and its loud enough for me tbh. I am totally happy with everything on the z tbh.
[Xperia Z General] redandwhitearmy:
Another video Sony Xperia Z can take touch input from water drops plus shows what can u do with it underwater ..... : http://www.youtube.com/watch?v=LSEdMTvSMvo
[Xperia Z General] TheKingOfPain:
Xperia Z ringing phone: 61.6 dB

Xperia T ringing phone: 62.1 dB

Xperia U ringing phone: 72 dB (widely recognized as "the phone you can't hear ringing")

Then people say it's loud enough and I really don't know what to think. I'm not saying you're not telling the truth, it's just confusing.

I can't find a review mentioning the vibration alert intensity: is it rough enough to feel it? Xperia U's vibration is barely perceivable even while you're holding it in your hands :(
[Xperia Z General] RCJ89:
Owners of the Z have also said the loud speaker on the Z is loud enough for them, I am going on personal experience and seriously I find the speaker of the Z much louder than the one on the xperia T.
[Xperia Z General] ethan3686:
gsmarena are confusing when it comes to sound tests..whether speakers or headphone..they list S3 as -91 say its loud and i have tried it with headphones and its nowhere near loud...HOX is rated -81 and its more loud..

And regarding screen..yes dissapointed by sony..hope that screen calibration or a BE 2 fix to keep it ON all the time comes up :(
[Xperia Z General] stefanve:
since they don't disclose how they test all measurements done by them are pretty useless
[Xperia Z General] redandwhitearmy:
Xperia U has loudspeaker on back... that does make a difference when phone is ringing....and phone is placed on bed/table with screen facing up...

---------- Post added at 03:57 AM ---------- Previous post was at 03:53 AM ----------

Regarding screen what hurt most was that line saying " it comes nowhere near the standard of its main competitors and it even fared worse than its predecessor" in GSMarena review :( :( their screen analysis is pretty good generally
[Xperia Z General] stefanve:
If/when they release the calibration tool this should be fixable, since the remark was about contrast and inspiring colors, just pump up saturation and e voila more contrast and inspiring colors.
[Xperia Z General] redandwhitearmy:
I will stay optimistic but still what i fear is that Sony has already calibrated this screen to maximum possible level to look better... i doubt that calibration tool will help much... Display is like this only.. we have to accept it or time will tell. anyway i will get the device in 3 weeks so more things will be clear by then.
[Xperia Z General] stefanve:
The BE dynamically changes contrast, saturation sharpness etc. Everyone says that the screen looks better with BE on, while it can't change the capabilities of the screen you should be able to get more saturated icons en more onscreen contrast.

Sony just likes very natural colors and calibrate the phone screen accordingly.

If you own a THX calibrated tv, or have a tv calibrated by a professional and you show the result to someone that owns a tv still in store mode they will say that the colors look dull and washout. I guess that a bit of over saturation is good for a phone/tablet since it makes reading easier and make icons and other UI elements stand out more.

a 700:1 contrast ratio should be good enough.

I'm not saying that with the tool you will get the same result as with an One X, but the difference besides viewing angles can be minimized in away it should not be noticeable in daily use. My Samsung galaxy tab 10.1v has slightly better measurements than the z and the screen looks fantastic, I have never hear anyone complain about that screen. But yeah it's a pity that they didn't use a better screen or at least got rid of the screen protector. but perhaps that makes it more durable and could proof to be a sensible trade off.
[Xperia Z General] xl VipeR lx:
I liked Stuff magazine review, sounded like a production unit!

[YOUTUBE]ws3Rqx9ZcXU[/YOUTUBE]
[Xperia Z General] Gamesarefun83:
Hi all! I am planning to get an Xperia Z as soon as it launches, but after seeing one myself yesterday I can't help but feel somewhat disappointed. The screen contrast is barely better than my Xperia Play from 2 years ago, and basically looks weak and 'greyed out' on all of the menus.

This poor contrast issue has been seen by reviewers of the phone from various websites, but this issue has actually only recently been mentioned (during this week), since the European Xperia Z has started being tested. Since earlier previews/hands on with the device had no mention of this issue, and we're actually extremely positive about the screen in general, I have become suspicious that something has been changed in the phone's 'final' hardware/software (models releasing at the end of February in Europe) from what was shown previously.

I would like to suggest two possible explanations for this mysterious issue with screen contrast, although both will probably be way off the mark, but here goes...

Firstly, perhaps Sony have deliberately reduced/restricted the contrast ratios from the pre-production handsets in order too subtly help the phone conserve battery power. Unfortunately this change has not gone unnoticed by users who instead of getting a bright, vibrant display like they expected, have ended up with a far duller display with opinion dividingly poor contrast ratios.

My second theory is that some reviewers/users have set the phone's brightness to it's maximum setting (why not!?) and for some reason the screen just 'appears' to have a poorer contrast while at this level of brightness. I don't know exactly why this would be the case, although I have noticed this effect before on my television where as the brightness setting increases the contrast setting becomes less noticeable, even if set to maximum. But, when the brightness level is reduced again (to about 65%-75%) the contrast and colour saturation becomes quite obvious once more.

Whatever the reason for this issue, it is a REAL problem that would be best dealt with by people firstly acknowledging it, and then requesting an appropriate solution from Sony. A lot of people seem to be denying that there really is any problem at all (and perhaps with the Xperia Zs shown off at CES last month there actually wasn't). But unfortunately there is a problem with these more recent handsets. So please, Sony, sort it out quick!!
[Xperia Z General] hndr_haryanto:
Sony Mobile Japan has released a couple of new promotional videos for the Xperia Z. The creative 30-second videos don’t showcase the phone but draw on the emotional experience with taglines such as ‘Make Magic’ and ‘Be Moved’.
[Xperia Z General] gjokic:
what aboute vibration on Xperia Z how strong is it

i have S3 and my vibe is good and i want to now is somebody make compersation between them

and could you please compare speaker of Xz with S3

it is very important to me becouse i use 90% outside with lot of traffic and i don't want a missed cals

thanks
[Xperia Z General] maverick1103:
This review is the same as the preview, just had a few little added bits...

The preview and the review have the same contrast results, 705. Hopefully when GSM get another device they can update it, like they said in their preview.
[Xperia Z General] stefanve:
They updated the preview that's why is shows 705.
[Xperia Z General] maverick1103:
Fairly decent review, thanks for the share! Stuff.tv are pretty good on reviews so I'm happy with them rating it 5 stars!
[Xperia Z General] Ambroos:
The vibration on the Z is really strong, very easy to feel.
[Xperia Z General] Shasarak:
Neither of those theories makes much sense to me, I'm afraid.

With an LCD display the contrast ratio doesn't change as a result of the backlight brightness being changed. The backlight is on all the time, and each individual pixel absorbs a certain percentage of the backlight when it's as transparent as possible, and a certain (higher!) percentage when it is as dark as possible. If you make the backlight brighter then both white pixels and black pixels become brighter, because the percentage of the backlight they absorb remains the same, and the contrast ratio is the white brightness divided by the black brightness.

Using some example numbers that probably bear no relation to reality but illustrate the maths: suppose that the brightness of the backlight is 2000 units. Suppose a white pixel allows 50% of that light through, and a black pixel allows 0.1% of the light through. The brightness of a white pixel is therefore 1000, and a black pixel is 2; this gives a contrast ratio of 500:1 (1000 divided by 2 is 500). If we now pump up the backlight brightness from 2000 to 10000, now white pixels have a brightness of 5000, and black pixels have a brightness of 10; but white brightness divided by black brightness is still 500:1.

So, you may be right that people are using a rather high backlight level; or, if Sony were trying to conserve power they might reduce the brightness of the backlight; but either way that can't have any impact on measured contrast ratio.

The measured contrast ratio on the XZ is in the 500-700 range in reviews (while LCD displays on rival phones are in the 1000-1500 range). The reviewers measure screen brightness separately, and that seems to be okay (so, again, I doubt it's a power conservation issue); the reason for the poor contrast is that the black level is unusually bad compared to other phones - the black pixels let too much light through, so blacks come out grey.
[Xperia Z General] Kurowsk1:
You do realise that the menus are meant to be grey yeah?
[Xperia Z General] xl VipeR lx:
Nope wrong

because if you look at gsmarena xperia z review. When it shows the screen test on page 3.

Other devices have different contrast ratios at 50 percent and 100 percent brightness. None of the devices have the same contrast ratio on the brightness being lowered. All the devices improved when the brightness was lowered.

So although your theory is very logical. Gsmarena.com have proved beyond levels do affect contrast ratio

Devices increase their contrast on lowering brightness
[Xperia Z General] Shasarak:
(weary sigh)

That simply indicates that GSM Arena are quoting numbers in a way which implies slightly more accuracy than their instruments actually provide. If you take the Nexus 4 figures, for example, they claim they are:

Full brightness: white, 608; black, 0.45.

50% brightness: white, 314; black 0.22.

This gives us CRs of 1341 and 1447. But suppose that the white levels are correct and measured black levels are out by just 0.01 and should really be 0.44 and 0.23: that would give us CRs of 1382 and 1365 - effectively equal.

So what that tells you is that their instruments can't actually measure black level to an accuracy of +/- 0.01, but probably more like +/-0.02. (Or possibly that both white and black numbers are slightly off). And for everything other than the Nexus 4, the numbers are closer, requiring smaller errors in the measurements to account for them.

It's theoretically possible there could be a difference, if changing the brightness setting on the phone actually does something above and beyond varying the brightness of the backlight; but those numbers aren't anywhere near enough evidence to suspect that's happening.

(Incidentally, I have a degree in Physics, specialising in lasers and optoelectronics, so I do know a little bit about this stuff).
[Xperia Z General] ethan3686:
I think what shasarak is saying is that it wont make a Very big difference with 100% or 50%
[Xperia Z General] horsetastic:
To be totally honest with you all.....After playing with several nice new phones I've come to realise one very simple very important but constantly overlooked fact. They're all so much faster, smoother, more advance then my current phone which is a Desire HD. And my current phone to me is pretty damn awesome and has been for the last 2 years. So really all the new phones are very good, and they vary slightly from one to the next. But you can't really say that they are at all bad in any way really. I'll be getting an Xperia Z for a few simple reasons. The screen size is ideal for me, the build quality is great and it looks awesome. The camera is almost certainly going to be better then the Desire HD's so I'll be happy with that and the general performance is going to be a huge leap forward.

I think more people should try and take a step back sometimes rather then trying to compare the current devices. If you like the Samsungs buy one! If you like the Sony's, buy one! If you like Apple stuff, buy an iPhone. It really is that simple. It's not like you'll be getting a bad phone out of it whatever you choose!
[Xperia Z General] :
Spot on. Problem is though, people treat phones like sports teams these days. Just get what you prefer, for me its Xperia Z and iPhone 5. Not a fan boy of either company, just what a prefer this time around.
[Xperia Z General] horsetastic:
Exactly! I love HTC but they haven't for me produced anything really that great this time. But the new Sony phones look awesome. It's definitely been a tough choice because of all the great phones about so really in the end it's come down to appearance for me lol!
[Xperia Z General] ethan3686:
That is nicely put in a nutshell
[Xperia Z General] stefanve:
Could you tell me (us) what, if any, real world difference a contrast ratio of 1:700 vs 1:1400 (one x) means in terms of eye strain and readability? I have tried to find any thing about this but could not find it.

thanks in advanced :)

found this on http://www.displaymate.com/news.html

"Contrast Ratio: Contrast Ratio is the Spec that tells you how good the display is at reproducing relatively dark content, particularly at or near black. It is measured in an absolutely pitch black Lab. It is very important if you watch movies with dark content under low Ambient Lighting. It's not so important if you are watching in bright Ambient Lighting (like for many HDTVs and most mobile devices) or when watching ordinary television shows and sporting events (because they have almost no dark content). Mobile displays should have at least a true Contrast Ratio of 500 and home theater HDTVs at least 1,500 (a good LCD). Videophiles will want at least 4,000 from Plasma HDTVs, and are waiting anxiously for the much higher values in the new OLED HDTVs, as explained in this Display News article."

and:

"Contrast Rating for High Ambient Light: Contrast Ratios (above) are measured in the dark and are only relevant for displays viewed in low Ambient Lighting. As the Ambient Lighting increases the Screen Reflectance becomes a dominating factor and the Contrast Ratio becomes increasingly irrelevant. We have defined a new Spec called Contrast Rating for High Ambient Light. It is based on Brightness and Reflectance Lab measurements that accurately indicate how well a display performs in high Ambient Lighting. This article includes the Contrast Rating, Lab measurements, and screen shots for 9 Tablets and Smartphones for Ambient Lighting levels up to 40,000 lux."
[Xperia Z General] maverick1103:
Sorry I didn't realise that....
[Xperia Z General] stefanve:
no problem, I was pretty sure my self but looked at the discussions on xda flowing the preview to be absolutely sure of it :)
[Xperia Z General] maverick1103:
I was surprised they changed it if it was the same device, or have they got an new one now?
[Xperia Z General] stefanve:
don't know I can't find the request for a new one on the preview page any more, could be that they got a new one or maybe they remeasured.