The Samsung Galaxy S25 Ultra display resolves the graininess issues, improves color rendering

29 January 2025
This is compared to the S24 Ultra display, which appeared grainy at very low brightness settings. 

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Anonymous, 29 Jan 2025Bit rate of true 10bit QHD is basically same of 4K 8 bit. ... more1440p 20:9 120 hz 10 bit is 16,59 gbit/s, 4k 20:9 120 hz 8 bit is 19,11 gbit/s

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    • Anonymous
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    • 29 Jan 2025

    vik457, 29 Jan 2025Why aren't more native 10-bit panels there?Bit rate of true 10bit QHD is basically same of 4K 8 bit.
    Ultra power hungry.

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      • Anonymous
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      • 29 Jan 2025

      raditz594, 29 Jan 2025Does the S25U have the anti-glare coating on it?It is not coating, it is nature of glass itself.

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        • Anonymous
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        • 29 Jan 2025

        Still extremely wrongly calibrated ( vivid + warm + punchy) like all past samsung phones?

          Graininess on an AMOLED? I guess I never knew that such a display could also suffer an age-old issue like picture grain. In fact, I hardly ever notice it on my S23, but then again, I don't use it with such low brightness anyway.

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            • 29 Jan 2025

            raditz594, 29 Jan 2025Does the S25U have the anti-glare coating on it?Yes.

              Darth Caesium, 29 Jan 2025The power increase is probably still large enough to be una... moreWhat was that with rgb subpixel layout and evaporative inkjet printing and pholed?

                Does the S25U have the anti-glare coating on it?

                  vik457, 29 Jan 2025So what needs to change? Perhaps display chips on more effi... moreThe power increase is probably still large enough to be unavoidable even on a smaller node, so multiple things have to be done. Basically:

                  Smaller node + phosphorescent blue LEDs + tandem display = (probably) achievable native 10-bit panel with 3000+Hz PWM dimming

                  Besides that, though, if the issue is yields, then evaporative inkjet printing would eliminate such an issue, and would bring down costs very significantly. It would also allow for true RGB subpixel layouts, so 1440p resolutions would no longer be needed, thus improving power efficiency and consumption, and lowering heat generated, which again would alleviate potential burn-in concerns that a native 10-bit panel with 3000+Hz PWM dimming rates might cause.

                    Darth Caesium, 29 Jan 2025That doesn't make that acceptable though. An 8-bit + 2... moreNo wonder Mr. Sr6 hates OLEDs. 😭
                    Lil bro is just upset! 😞

                      xPandamon, 29 Jan 2025No clue why someone down voted it. I guess people are just ... moreYou know what mura effect is?

                        Shahar , 29 Jan 2025Am I going crazy? I don't see any difference between t... moreLook at the top left of the circle. It definitely looks better. But I think the screen you use to look at the picture may be the reason why it looks the same to you

                          Anonymous, 29 Jan 2025For the same reason that a matte screen protector is grainy. No clue why someone down voted it. I guess people are just not smart. The foil\ display has tiny divets and such, like very fine sandpaper, which breaks how the light reflects, reducing reflections.

                            Nikojas, 29 Jan 2025There is a review embargo that's why we don't hav... moreThere are plenty of battery tests out there already. Both YouTube and on the web.

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                              • Luke
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                              • 29 Jan 2025

                              I posted the same yesterday, after 1h playing with S24U and S25U in store. Display of 25 is a bit better than 24.

                                Could just be display calibration improvements being done for the S25 Ultra.

                                  Darth Caesium, 29 Jan 2025Probably because of power consumption, cost or defect rates.So what needs to change? Perhaps display chips on more efficient node?

                                    vik457, 29 Jan 2025Why aren't more native 10-bit panels there?Probably because of power consumption, cost or defect rates.

                                      Darth Caesium, 29 Jan 2025That doesn't make that acceptable though. An 8-bit + 2... moreWhy aren't more native 10-bit panels there?

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                                        • Shahar
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                                        • 29 Jan 2025

                                        Am I going crazy? I don't see any difference between the two images (the pink one)..

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