yashsingh1/xdaforums huggingface dataset:
[One (M7) General] Shasarak:
Maybe. There are other possibilities, though. Maybe the screen simply has inconsistent performance from model to model due to poor (or non-existent) quality control. Maybe there was a change of screen between the prototype and retail version, with the prototype version having better performance. Maybe some of the reviewers have dodgy instruments, or measured incorrectly.

The 3dnews.ru test was (I think) performed actually at HTC's stand at MWC and, as such, couldn't have been conducted in the dark, which might have messed with the results; and Spyder colorimeters are less accurate than more pricey models; they would certainly also have been looking at pre-production hardware, while tweakers.net and uk.hardware.info are more likely to have been using a final version.
[One (M7) General] Eggcake:
German Review at computerbase titled "The New Number One"

Regarding battery:

They said that in their video test it lasted "only" 4.5 hours with MAX brightness. With 200 cd/m² an hour longer and with energy saver turned on over 7 hours. In everyday use it lasted 2 days which is very good.

They rated as following:

Display: ++

Battery: +

Performance (Productive) : ++

Performace (Entertainment) : ++

Build Quality: ++

Positive:

Display (Sharpness, Contrast, Brightness, Color Accuracy, Viewing Angles)

Very high performance

Exceptional Build Quality / Materials

Good camera with additional functions

Above average battery in every day use

Sense TV a real "+"

Very good speakers

Negative:

Battery not replaceable

No mSD slot

Camera not very detailed

No Android 4.2 (yet)

So wow...not many negative points :)

Edit:

To add on the above display post:

They reported 483cd/m² with 6600K color temperature and a contrast of nearly 1:1100
[One (M7) General] jonas2295:
AW: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

@ hamdir,

Here are the values .

Can't attach pictures via xda app on pms.
[One (M7) General] jonas2295:
AW: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

@ all .

HTC is going to replace my phone right away and will do diagnostics on my phone .

So everybody calm down if they didn't yet :)
[One (M7) General] nsane:
Ok so after 24 hours with the phone these are the issues I have so far

1) Camera banding when taking pictures/videos under neon lights

2) Hairline gap at the top of the phone between metal and plastic

3) When NFC is turned on, it interferes with FM radio and IR blaster

4) An avalanche of software issues...the most crucial of which is the HTC email client not doing push email in a reliable manner in combination with an MS Exchange 2010 server.

Bottom line...as I bought this phone at P4U retail store...I am returning it.
[One (M7) General] ipmanwck:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

Oh dear :( regarding camera under normal usage like taking pics of moving people in a house like my kid and nice pictures of say some geese on a lake how does the camera do. Seems like all reviews don't tell the entire story ?

Is it better than gs3 camera ? Iphone camera ?

Or should I wait for GS4 camera.

Custom Stock Rom v4.1 Eternity

Brilliantly Stock
[One (M7) General] NiCk.JaY:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

Congrats :)
[One (M7) General] puremind:
No.

From my experience as a screen calibrator, screen of the same model and type cannot have a difference in brightness of more than 5%.

Dodgy instruments or poor measurement protocol cannot have an error margin on maximum brightness of more than 5%. The best instruments really add value and precision for color accuracy and black level measurement, but not for overall brightness. One of the reviews used the i1 Pro, which is a good Spectroradiometer and even thought the measurement range is 0.2cd/m² to 300cd/m² brightness cannot be wrong by more than 10%.

Measurement in the dark has no impact on maximum brightness measurement; it can only have an minor impact on black level measurement and white balance, but usually only at levels below 0.25 cd/m²

Different screen calibration can display different brightness, but whether it is that or different panels...battery performance will be seriously impacted.

But HTC have been using different display models since forever, most OEM's do, and it was the case on the One X. This is a more likely reason for the observed differences. Different screens have different color temperature sweetspot for best contrast/brightness.

---------- Post added at 11:50 AM ---------- Previous post was at 11:31 AM ----------

Thanks, have now added to my original post. The same pattern can be observed for the One so far:

- 26.02.2013 RUS 3dnews.ru: 382cd/m² and 1,258:1 contrast | 6,938K color temperature

- 14.03.2013 GBR uk.hardware.info: 426cd/m² brightness | 977:1 contrast | 7,820K color temperature

- 14.03.2013 NLD Tweakers.net: 489cd/m² | 1159:1 contrast | 8,166 color temperature

- 19.03.2013 DEU Notebookjournal: 385cd/m² and 1100:1 contrast

- 20.03.2013 DEU Computerbase.de: 483cd/m² brightness | 1100:1 contrast | 6,600K color temperature

- 20.03.2013 GBR pcpro: 481cd/m² brightness | 1202:1 contrast

- 20.03.2013 DEU Chip.de: 479cd/m² brightness: 1020:1 contrast

Until custom ROM's enable a cap on auto brightness, different screen versions will have different battery life in automatic brightness mode as a result!
[One (M7) General] Turbotab:
Given the delay in shipping, I'm sure the early QA issues will be quickly resolved. I understand it is frustrating for the person with the issue, and we should not give HTC a free pass, as they should aim for 0% faults, but no company is perfect.

Major UK PC Magazine awarded the One their recommended "A-List award"

http://www.pcpro.co.uk/reviews/smartphones/380644/htc-one

Quote

The handset alone is a design tour de force, and the lovingly crafted aluminium body combines stunning looks with outstanding build quality. The loss of expandable storage is a blow, but there’s little else to find fault with: Sense 5 is slick; class-leading power is matched to decent battery life; and the Full HD screen oozes quality. HTC needed to come out fighting with its latest handset, and it’s done so with gusto: the One is the finest smartphone money can buy.
[One (M7) General] stroker507:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

From techradar
[One (M7) General] Goku80:
hamdir another unboxing for you mate from the UK

[YOUTUBE]1zzHmnBRfuA[/YOUTUBE]
[One (M7) General] puremind:
Or you could download another email client (there are several good alternatives). Having said that the gap at the top is a bit worrying considering Jonas has had his metal grid come off. Better return it
[One (M7) General] djbenny1:
another niggle that im not sure if anyone else has or has noticed:

if you start with your finger at the top of the phone then run it down over the screen toward the bottom....

on my phone, at the top aluminium > screen interface, there is a step UP - in other words, the screen is slightly raised relative to the top aluminium

however, at the screen > bottom aluminium interface, there is also a step UP - in other words, the bottom aluminium is slightly raised relative to the screen

as it is, its not annoying, but as soon as you put a screen protector on, it becomes VERY noticeable at the top of the screen
[One (M7) General] shox22:
chip.de measured 479cd/m²

http://www.chip.de/artikel/HTC-One-Handy-Test_61040873.html
[One (M7) General] vegetaleb:
Nice video!

What I love with a new phone is the first boot

BTW good to see you here Goku
[One (M7) General] Shasarak:
The i1pro (as used by tweakers.net) is certainly a quality device. 3dnews.ru used a Spyder 4 - not a device I imagine a professional calibrator would be seen dead with. :) The Spyder 4 may be better than its predecessor, but errors well above 10% were not unknown with early Spyders.

Most other reviews don't specify what they used, as I recall.

I'm surprised to hear you say that ambient light doesn't affect colorimeter readings. My own experience has mostly been with an old i1 device (not i1pro) but certainly measuring in darkness was essential with that - any ambient light in the room at all made the results meaningless.
[One (M7) General] sr1ks:
Pocket now live podcast

Sony XZ vs HTC One vs SGS4

http://pocketnow.com/2013/03/20/samsung-galaxy-s-4-vs-htc-one-vs-xperia-z
[One (M7) General] Shasarak:
What makes the "multiple screen suppliers" theory less plausible, IMO, is that the results we're seeing don't obviously divide into clear-cut groups. Computerbase.de and tweakers.net have very similar measurements for maximum brightness and contrast ratio, but widely differing colour temperature results; 3dnews.ru has a colour temperature within shouting distance of the computerbase.de value, but a very different figure for maximum brightness. If there were an obvious correlation between colour temperature and brightness, that would point to discrete categories of display; but with no apparent correlation (so far) that suggests the variation is more random than organised.
[One (M7) General] omersak:
http://www.computerbase.de/artikel/handys/2013/htc-one-im-test/5/

Wow, the HTC One ****s a major brick in the video rundown battery tests - with all phones set to 200 cd/m².

Worrying.
[One (M7) General] Shasarak:
Yeah - Galaxy S3 has 29% better battery life, and the iPhone5 35% better at the same measured screen brightness. That's rather scary. On the plus side, I think many (not all) of the reviews complaining about battery life are doing so on the basis of performance while playing video; battery life when doing other things seems to be (relatively) better.
[One (M7) General] puremind:
No, I am saying this relative to maximum brightness measurements, not in general.

Actually even unexpensive colorimeters are superior to spectroradiometer (e.g. i1 Pro) when it comes to measuring high brightness levels or at very low stimulus (below 0.2 cd/m²). Spectroradiometers are more discerning in terms of color accuracy. Of course with professional grade equipment, spectroradiometers do not have these issues and have an increased range of accuracy across the brightness spectrum. But the i1 Pro is only semi-professional.

My point though is there is no way the room lightning or the device quality can make readings jump from 385cd/m² to 480cd/m², no matter how cheap the colorimeter or spectroradiometer would have been. We are dealing with two different screen versions. Having seen the 385cd/m² version in the shop, I can say for sure that it exists right now.
[One (M7) General] stephen2282:
Read the next paragraph. It says that in everyday scenario the battery does fine and with power saving it can lasts up to 3 days! With power saving video playback lasts up to 7 hours too. It's only obvious that video playback will be worse because the phone is playing the video at full 1920x1080 pixels rather than older phones downscales the video. So the resuit is considered good.
[One (M7) General] omersak:
The video used for the test is 720p.

Also, given that playing 1080p movies in it's native resolution is one of the key benefits of having a 1080p screen, shouldn't they have put in a bigger battery?

HTC One - Black vs Silver, for those having trouble deciding:

http://pocketnow.com/2013/03/20/htc-one-color-options-compared-how-i-chose-my-favorite

I'm seriously thinking about switching my preorder to black. It looks amazing.
[One (M7) General] huxley309:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

Little gizmodo bit on the htc.

http://gizmodo.com/5990813/it-took-five-years-to-make-a-beautiful-android-phone
[One (M7) General] Shasarak:
No. The video used was 720p in all cases, and the screen brightness set to the same measured level in all cases. They're exactly comparable.
[One (M7) General] puremind:
Yes I noted that too, however reviews are multiplying now, and the type 485cd/m² is now well defined and very consistent. Likewise the 385cd/m² is well characterized and I myself have seen it in the shop.

Also, as you pointed out, the Tweakers review used the i1 pro, which is not good for measuring color temperature above 300cd/m².

And then there is the methodology question. Some testers measure white color temperature, while others measure the color temperature across the full brightness spectrum from 0% to 100% stimulus.
[One (M7) General] gelo01:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

I just fell in love with the black.. :D
[One (M7) General] Shasarak:
Ah, okay. :)

I assume you remembered to turn off power save mode? :p (I'm kidding! :) )

We've got at least one anomalous brightness reading - 426 from uk.hardware.info. (They say they use "a professional colorimeter", whatever that means).

It would also be good if we could nail down the colour accuracy a bit. I wasn't aware that the i1pro has problems at high brightness levels - thanks for that. That might be adversely affecting the tweakers.net review - but surely not enough to turn 6500K into nearly 8200K? Or could it?

What's needed is more readings! Any video calibrators in London want to offer their services? I'll bring my One over to you as a start. :)

---------- Post added at 01:27 PM ---------- Previous post was at 01:25 PM ----------

Someone really ought to start a separate thread for "Different handsets may have different screens". I'd volunteer, but I don't really have the time to maintain it....
[One (M7) General] voltron2k11:
I might switch to the black one too ... only problem being that I don't want to wait
[One (M7) General] djbenny1:
seeing as I'm returning my silver One, I'll probably ask if i can get the black instead when it comes in stock - not sure if itll be possible though as I'm on a contract - what you reckon?
[One (M7) General] stephen2282:
It is? :eek: Sorry that i didn't know that.

It should be due to the upscaling on One then, most devices with 1080p screen will upscale 720p to fit in, it works like that in televisions.
[One (M7) General] nsane:
Disclaimer,

I have only had the phone for 48 hours. Moreover, my comparisons are the Xperia Arc, Droid 4 and HTC vision Z....

Battery life on the HTC one is perfectly fine for "business" use.

Leave the house at 7am

100 emails.

Kindle/News reading on train (3 hours approximately)

1-2 hours talking on the phone

5 minutes GPS navigation to find an office

20 Pictures taken with Camscanner

Arrive at home at 9pm

20% battery left.

This is more than good for me. Don't know if perhaps it is not good enough compared to other phones...

Perhaps, the battery performance is poor when playing games or watching videos....
[One (M7) General] voltron2k11:
great batterie life :)

what are your settings, and are you using lte?
[One (M7) General] stephen2282:
Sounds good with your min. 3 hours on screen time + whole day of mobile network + average use of camera. Am definitely getting the phone. :victory:
[One (M7) General] LordManhattan:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

No they're not. The i5 and S3 are pushing way fewer pixels than the One. You can't seriously think that a 1080p display will magically transform into a 720p display by watching a 720p video. The One still have to push 1080p, because that is the resolution of the screen and therefore absolute.

The One alone has to push 2 million pixels compared to 900k (S3). That's double of what the S3 has to push, and that will naturally use more power.
[One (M7) General] djbenny1:
correct me if I'm wrong, but basically you are saying :

to the One, it makes no difference if it is showing 720p video or 1080p video - it still has to illuminate 1920x1080 pixels
[One (M7) General] Shasarak:
And?

The number of physical pixels in the screen is virtually irrelevant in terms of how much power the screen uses. The physical size of the screen (its area) certainly is relevant - twice the screen area means you have to generate twice as much light to maintain the same brightness - but how you sub-divide the area is not.

As for the processing, any self-respecting phone GPU should be able to upscale 720p to 1080p using a neglible amount of power.

At a guess, I'd say the iPhone gives much better results because its screen is physically smaller, while the S3 gives much better results because OLED displays are intrinsically much more efficient than LCD at the same brightness level if you're playing back video. (That difference is much smaller if you're viewing something like a webpage with a mostly-white background).
[One (M7) General] LordManhattan:
Yes and no, you have to take bitrate, format, filesize etc. into consideration. Have you tried to run a 10GB movie on a 5 year old (reasonable priced) laptop? Won't happen :p What i'm saying is that the One's display is a 1080p display, and you can't change that no matter what. It'll always show 1920x1080 pixels. Take benchmarks for example. Remember when 720p started to enter the mobile market, and we saw drops in on-screen benchmark results? That's because the phone had to push more pixels. A great comparison is the S2 Vs the Note. Same internal hardware except for the resolution. The S2 gets higher (on-screen) FPS than the Note.

So, again; the One has to push 2073600 pixels whilst the S3 only has to push 921600 pixels. And on top of that, since HTC uses LCD, they have to use stronger backlighting because of the pixel density. AMOLED doesn't have this problem since each pixel emits its own light, but LCD has to use backlighting and a higher pixel density will result in weaker brightness (since higher density), so they have to adjust the backlight, and that - again, has an impact on battery life.

It's a messy post, but i hope you understand some parts :p
[One (M7) General] Shasarak:
Gaming benchmarks and video benchmarks are very different things. In a 3D game you're actually generating an image with more pixels in it, which requires more processing power; but in this case each phone is decoding the video internally to produce the same 1280x720 image. The very last stage is to upscale or downscale that image to the resolution of the screen, and upscaling and downscaling is something which any half-way decent GPU can do with one hand behind its back; certainly it requires far less processing than decoding the video in the first place.
[One (M7) General] jesr:
Camera comparison: HTC One vs Nokia Lumia 920 vs Apple iPhone 5 vs Samsung Galaxy S III vs Sony Xperia Z vs Google Nexus 4

One of the most surprising things for me is that lately I've been noticing SENSE 5 seems to please even former haters! This is very commendable because usually OEMs are adverse to evolve/change their UI.
[One (M7) General] LordManhattan:
Yes, but we also have to take screen technology into account, and there are a lot of variables that makes this hard. It would be a lot easier if both screens were 720p and AMOLED (or the other way around). Then we could've concluded "Aha! HERE'S the thing!". Now it's:

- Screen resolution

- Screen type

- Device CPU/GPU

- Video resolution

- Video bitrate

- Video size

- Video format (is the format natively supported by the hardware? Or is it by software?)

- Video Framerate

There are a lot of things to take into account, and i don't think it's that black and white.

It's an interesting topic, but i don't think one of us will win this discussion. I believe that we are both right, but we are at the same time slowly drifting away from the original topic :p
[One (M7) General] nsane:
For those who were asking about LTE.

I am on UK voda. No LTE.

I also forgot to mention that I have Blinkfeed activated and both bloomberg and financial times pulling news updates.

To be honest...I still think that Sense 5 is an unnecessary battery hog.

I honestly cannot find one single function provided by Sense that I could not replicate in an AOSP Rom. Difference being that in the latter case it would be tailored to my use and specifications.

Frankly, I cannot wait to have an AOSP Rom.

I genuinely think that this phone will be amazing for my personal type of use, once I can actually set it up in a manner that pleases me.

I am also considering disabling everything around Rosie, installing Nova Launcher and verifying whether I have a battery performance improvement. But I doubt it.

I might also add that my email usage is probably slightly more battery intensive than most people due to work reasons.

But again...perhaps nowadays everybody has about 100 mails er day.

Again, IMHO battery is perfectly fine.
[One (M7) General] MrKaon:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

So it's official :

UK Samsung Galaxy S4 will use quad-core Snapdragon 600 processor,not8-core
[One (M7) General] CreepyDroid:
Same for most (if not all )European countries. The S600 variant is the true international model.
[One (M7) General] djbenny1:
whether they believe it or not, i honestly think this is good news for prospective UK GS4 owners
[One (M7) General] omersak:
It is but they won't be able to brag about having an "eight core" phone anymore. Lulz.
[One (M7) General] MrKaon:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

It's very good news for HTC marketing team here in Europe also US. no more 8 core bla bla bla.
[One (M7) General] beno619:
+1

Im still a little disappointed tho, I thing Exynos 5 is going to be a disaster, if its substantially faster than S600, who cares ? if its only marginally faster or on par performance wise & battery wise, who cares ?

Now imagine it does have problems with thermals and quad A7's arnt powerful enough to run TouchWiz, Disaster for samsung !
[One (M7) General] sr1ks:
The back/menu button is back

Paul O'Brien ‏@PaulOBrien 10m

HTC One + Xposed = missing menu option restored. #win pic.twitter.com/y4hOuN9pJ6
[One (M7) General] combat goofwing:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

Samsung confirms quad core S4 for UK - http://tpt.to/a3jRpSb - shared from Taptu

S4 UK to get less powefull processor
[One (M7) General] djbenny1:
probably stupid question, but does this hide the on screen menu button then?
[One (M7) General] horsetastic:
Re: HTC Flagship 2013 - HTC One - Qualcomm® Snapdragon™ 600 - Mega Information Thread

You really should read a bit before posting. See the page before this....literally a couple of posts back.....
[One (M7) General] sr1ks:
Dont actually know myself yet.. I dont have a One (yet) to try myself
[One (M7) General] Shasarak:
Dude, there is no discussion here, and there is nothing to win. I have no agenda, and I'm not trying to prove anything; it's simply that you've made a number of claims that are objectively wrong, and I'm pointing them out.

Screen resolution is irrelevant to performance in this benchmark, for reasons I've already explained twice. Just accept it and move on.

Video resolution is irrelevant because all the phones are playing the same video.

Video bit-rate is irrelevant because all the phones are playing the same video.

Video size is irrelevant because all the phones are playing the same video.

Video framerate is irrelevant because all the phones are playing the same video.

Video format is probably irrelevant because all the phones are playing the same video, but just might be a relevant factor if the video in question is in a rather obscure format which some of the other phones decode in hardware while the One doesn't; but unless you can present some evidence that this is the case, I regard that as doubtful. If it's a common video format then, even if the One doesn't handle it well, that doesn't in any way invalidate the benchmark: the One still has poor battery life when playing back video.

CPU, GPU and display type probably are things that contribute to the poor battery life, but the battery life doesn't suddenly, magically improve just because it is better on devices with a different screen, CPU and GPU; it remains just as bad, and doesn't render the benchmark unfair. So what exactly was your point?