Galaxy S23 Ultra CAN HURT YOUR EYES

The Galaxy S23 Ultra is the best Android smartphone. At least we used to think so. By all indications, Samsung's flagship smartphone has all the best: design, processor, cameras and screen... Or we were wrong all along.

In 2019, users on Samsung's official forum began asking the company why the screens of their favorite smartphones hurt their eyes and sometimes cause headaches.

How is it that the best screen on the market is also the worst screen among all smartphones? Let's find out.

[ChristianGolca]

Thank you for explaining this in such great detail! I haven’t been able to use any smartphone with an OLED display because of PWM. Not only do I get eye pain and headaches but also terribly dizzy. My current and only smartphone that I can use is the iPhone SE since it has an LCD display.

[oversoul]

My iPhone 15 is in the drawer. I’m not buying another new phone until they fix this.

[sushilpathania]

Not only Samsung phone its tablet also causing eye strain and headache. Finally I sold both on olx, 😀😀

[allkindsofthings]

Bright, vivid colors can be a strain on the eyes. On iPhone: First set the phone's brightness to 100% (to compensate for the next step which make it darker), Then go to Settings, Accessibility, Display. Set the Reduce whitepoint setting to a high value. This reduces the intensity of bright colors. Myself I use 95%. If you find it too dark you need to use a lower value than 95 %. This brings brightness back.

[tiger-ks]

Companies are keeping this matter secret for their own benefit. The cost of manufacturing OLED screens is low. People do not understand this matter.
Anyone who suffers from migraines or depression should change their phone to the iPhone 11 and will see their health will improving

I will publish a study soon on the reason for the large number of suicides in South Korea. One of the reasons is the large amount of depression caused by AMOLED screens.
because South Korea only has AMOLED screens for all device !!!

[susanhawkes]

I am returning an S23 because it hurts my eyes.
I was stunned to find your video.
Thank you for your cleear explanation. My eyes are still ok.

[Uklifehacksofdk]

Even I was a die hard fan of Samsung and already had used 4 Samsung phones in last 8 years . But just 5 months back I got affected with headache dizziness and eye straining even after a few minutes of phone usage.And my doctor suggested me to change the phone . I bought 14 plus afterwards and now am freed from all the hallucinations and headaches. I had opted out 14 pro models considering even it may cause some sort of eye strains. PWM least for 14 plus

[NihilsticFeeling]

I have an s23 ultra... and my computer monitor is a huge oled.. i can stare at my monitor all day no issues. I check something on my phone for 5 minutes and suddenly i cant read anything on my monitor for a couple minutes..

[daineramosquitco]

Thanks for the explanation. I actually like the Samsung Galaxy S23 Ultra before until I figured out that it has this major flaw, which is a low frequency PWM dimming and its a BIG problem because not all people are suitable for such phones with displays like this. I have a Xiaomi POCO X3 NFC from 2020, it has an IPS LCD, BUT... it has a 2358Hz High frequency PWM dimming at low brightness levels and I've been using it for years now but haven't experienced migraines or anything. I hope Apple and Samsung will use high frequency PWM dimming in their future phones.

[step]

The only solution is to choose the smartphones with an IPS display which is hard to find nowadays when it comes to flagship devices.

[allkindsofthings]

It is not only PWM. I find that I get problems with screens (both phone and computer) when the colors are too vivid and exaggerated. I just found this today and am testing it: From Android Settings, tap Display, and then tap Screen mode. Tap Natural (or Basic). Don't choose Vivid. Also under Settings, Accessibility, Display there may be some setting affecting color. My Android phone is old so can't check it now.

[vrch]

I had S 21 ultra and I wanted to change the phone, but I knew about PWM, and I understood why I always felt so bad. And although the desire to buy S 23 was great, I took Nothing phone 2 And what was my surprise when I felt that I had no fatigue in my eyes, because this phone does not have such a large PWM although it has an OLED display.

[deschubby]

If you care about your eye, trust me don't use dark mode, I'd suffered this issue 4 years ago when dark mode were very good alternative for battery saving. If you reading text with dark mode, your pupils will works harder to keep try to focus on every fonts.

[exscape]

Bit of an error around 3:16, but it doesn't change the main point of the video at all. The frequency doesn't change when you dim down with PWM; the pulse width does (hence the name, Pulse Width Modulation). The frequency is constant. Basically, at 100% brightness the screen is always at max brightness, but at lower values, it rapidly switches between max brightness and a lower value (possibly even having it entirely off). The lower the brightness, the longer the screen stays at the lower brightness every cycle. So it might be 50% on/50% off at a mid brightness, and 10% on/90% off at a low brightness setting. A lower pulse width is generally more annoying than a higher one.

[fOrNaLL]

I am "PWN sensitive" person, but switch on the "DC Dimming" (like OLED Saver app) on S22u makes me fell just a little bit better. Still sand in my eyes after 1hour+... This is not only the PWM parameter is harmful in these Samsung AMOLED displays.
E.g. Huawei P20 Pro and P30 were completly pleasant for my eyes, despite ~238Hz

[c.a.]

Dude thank you so much for covering this topic. I have the same nokia for years bc i cant update to a new phone. Hopefully they'll make changes soon. Have you found anything new that works?

[SM-AC]

My phone were a Redmi Note 10 5G. I used lot of IPS LCD display on any phone (Nokia 3 2017, iPhone 5, Samsung Galaxy Note 10.1 inches tablet and actual Redmi Note 10 5G). I prefer LCD display to AMOLED or OLED, except if it's 90 or 120 Hz.

[Djmikequick]

Iv been having problems ever since i got my s23. I changed from fold when the s23 came out. Never had that problem before. Thought it was allergies.

[vladimirzunic]

I have this issue with my Pixel 4a. My next phone will probably be the Xiaomi 13 ultra, because it has an amazingly high PWM, as you said (for Chinese mobile phone brands in general).

[ednewmy]

I understand that OnePlus dropped DC dimming some time ago and also just use PWM now too sadly.