Usable Smartphones?

Slacor

Tested the Samsung S8 out - no good for me. Used it for a few days but its effect on me became noticeable.
Transitioned from J3 Prime (No PWM) which worked fine to Nokia 7.1 (No PWM >3% brightness)
If PWM is your issue, both are good phones.

Sunspark

Slacor Wow, that Nokia 7.1 has a colour temperature of 9657.. That's really blue! The standard for video is 6500.

tomek

AGI xs is now my daily driver. I use it with matte screen protector 3mk but I think any will work. At the beginning it was not great one but with time can use it for few hours with no strain

AGI

Gurm I tried S8, S9 and S10 and came out like run over by a truck. It is really different to computer displays. Initially I feel those screens are beautiful, but after 15 minutes I have pain and discomfort for a day. I did not even read. I just looked at youtube and briefly used an app which converts in real-time selfies to some odd characters. I could not tell the name cause it was in Korean. Is there any FACE ID-like crap on those phones or any other potential source of strain while using that kind of apps?
Two days later I quickly tested an A6 and I had minimal discomfort. After 30 minutes from the test I was okay. But I was not convinced and passed. A week ago I had similar results with an AndroidOne s5. I believe it is a Sharp?

Do you guys know if buying brand-new phones from years ago is safe battery-wise? For instance, a new Iphone 6. Would the battery run down quickly because it was manufactured long ago or if unused it is okay? Thanks.

Gurm

Yes, I spent some time with the Galaxy S8, and although it looked sharp and good at the time with minimal strain, I came away with some days of tiredness in my eyes. This quest is getting really frustrating.

AGI

Gurm What is your feeling about AMOLED displays in general? An year ago there was a lot of talking about 240 Hz PWM after many Iphone fans found out they could not handle the X. Has something improved meanwhile? I have not really followed but now that my Galaxy on5 is buried I am relying on a Nokia 3310 3G and it is quite disappointing :-(

Gurm

I've not seen a "modern" amoled that I liked, but that doesn't mean it's the display tech to blame. My old MP3 player had an AMOLED and I had no problem with that screen (although it was only like 3x3"), playing games or watching tiny videos. That said, I've not used an AMOLED phone that was good for me.

tfouto

Shouldn't the phones with higher resolutions be better? Like 4k phones?
If it's dithering, or some kind of pixel flickering, if the pixel is smaller the effect is smaller.

Gurm

tfouto this is why I've started wondering about some "other factor" than dithering. Something else is making these phones super hard to look at.

AGI

tfouto Shouldn't the phones with higher resolutions be better? Like 4k phones?
If it's dithering, or some kind of pixel flickering, if the pixel is smaller the effect is smaller.

In general native resolution on displays is not ideal for me. Someone on this forum had actually suggested the reason why I benefited from using lower resolution is a reduction of dithering. I would too think the smaller the pixels the more noticeable the flicker.
I did not know about 4K phones. Are Samsung S10 and Iphone XS 4K?

Gurm this is why I've started wondering about some "other factor" than dithering. Something else is making these phones super hard to look at.

Incompatibility of eyes/brain with artificial lights, the more pushed the technology, the more troubles. That is what I start thinking. There is some kind of threshold. If I go beyond, my body tells me. Some sort of "allergy". It does not have to be a vision defect. But who knows...even doctors do not.
I feel for me continuing to test new devices hoping for a miracle is not viable. I can't return what I buy. I can't identify a potential root cause for my problems. What works for other people most likely will not work for me. Really bad.

tfouto

AGI Nope, the smaller the pixels less noticiable the flicker.

S10 and IPhone XS are not 4k. Altough Sony Xperia 1 will be.

AGI

tfouto Nope, the smaller the pixels less noticiable the flicker.

Uhm, I need to think more about it. If I use native resolution my eyes feel like in a Jacuzzi and hurt immediately. I can see each pixel pulsing. At lower resolution there is a sort of smoothening, and my eyes/brain do not have to digest that much useless information.
Which type of flickering are you talking about by the way? PWM or dither or both?
I do not have the tools to measure the flicker, unfortunately. I wish someone with proper equipment could run what I believe is a simple test. Measuring the flicker at native and lower resolutions at a given brightness (100%?). That is how I survived the last 15 years, lowering the resolution, and I badly want to know why it worked. It is not a matter of the font size becoming bigger.

Seagull

AGI

I have some thoughts:

With a smaller resolution effectively there are less pixels, and therefore less actual dithering occurring,
The native dithering of your monitor might counteract any dithering forced by your gpu,
also because its now blurring several pixels together,
Could be the level of focus your eyes needs to use to look at the screen,

I have also experienced this, both with a normal computer set up and watching a plasma tv

tfouto

AGI Dither i believe.

tfouto

Seagull There is a user, that said that with Sony XZ1 Premium 4k, it was much easier on the eyes. He could use the phone, with almost no problem.

If the pixels become too small, then the flicker, altough there are more pixels, they become too small to make an impact.

AGI

Seagull With a smaller resolution effectively there are less pixels, and therefore less actual dithering occurring,

I see, interesting.
Is the way backlighting operates totally independent from the screen resolution? Does it just relate to the brightness? Thank you.

AGI

tfouto If the pixels become too small, then the flicker, altough there are more pixels, they become too small to make an impact.

The way I imagine it instead is the tinier the pixels, the more pulsing items per area my eyes will see and get confused by.
I hope you are right though! Does you reasoning apply to monitors as well, does not it? Some colleagues just got 5K monitors. Tomorrow I will take a look at them and see if I get blinded.

tfouto There is a user, that said that with Sony XZ1 Premium 4k, it was much easier on the eyes.

Then the XZ3 should be even better because it has a higher resolution?

sony xperia XZ3 VS Xperia XZ1 smartphone comparison

About 40 seconds into the video, do you know what is the difference between P-OLED and IPS LCD?

AGI

AGI By the way, resolution-wise there is a different school of thought, according to which 5k smartphones may not trigger symptoms because dithering becomes impossible to detect even subconsciously.

Below is the post I was referring to, and this is the link to it.

tfouto There is a user, that said that with Sony XZ1 Premium 4k, it was much easier on the eyes. He could use the phone, with almost no problem.

If the pixels become too small, then the flicker, altough there are more pixels, they become too small to make an impact.

@hpst What do you think about this theory? It does not convince me, because it is inconsistent with what I experienced with laptops, that lowering the resolution makes the eyestrain vanish. Unless it is not dithering that causes the eyestrain...

tfouto

AGI It's XZ2 premium which is 4k. Both XZ2 and XZ3 are not.

I think monitors with 5k, the pixels are not small enough. PPI. 4k on a smartphone is a much higher ppi then 5k on large monitor.

degen

https://www.xda-developers.com/oneplus-dc-dimming-optional-feature-future-update/
https://www.weibo.com/1110411735/HnMTs7oaw?type=comment

Google translation:
"Regarding global DC dimming, this function will lose some display effects, and everyone knows the limitations. Although our engineer Demo has already done well, I have been worried that the experience is not very good, so the attitude is more cautious. Recently, we have received a lot of feedback from us. We will provide it to users who are willing to adopt it in the lab or in the developer options. There will be arrangements later."

JTL

degen woah

JTL

degen https://www.youtube.com/watch?v=t94NB4Bs0w8

It's beautiful...

« Previous Page Next Page »