In some ways, the Galaxy S24 Ultra’s display is the best Samsung has ever made. It finally upgraded the PWM dimming rate to match the iPhone, and Samsung’s new anti-glare filter made it easier to see in the sunlight.
However, issues have begun to surface over the past year, raising concerns about whether Samsung will address them in the upcoming Galaxy S25 series.
From grainy displays to dull colors, Samsung needs to work on improving the quality and configuration of the display. Some Galaxy S24 Ultra models have even exhibited permanent smudge marks, indicating premature wear of the oil-resistant layer.
Furthermore, Samsung lacks eye-friendly dimming options for users sensitive to PWM dimming and flickering LEDs. Here’s what Samsung needs to enhance on the Galaxy S25 Ultra’s display to regain the title for the best display on a phone.
Grainy displays
Early users reported grainy displays mainly noticeable at low brightness levels. This issue, known as “mura,” persists on some Galaxy S24 Ultra displays, resembling the problem seen with the Google Pixel 2 XL. The uneven pattern caused by adjacent pixels not being equally bright can affect the overall display quality.
It remains unclear if this issue is due to manufacturing defects or the unique characteristics of the M13 generation. Unlike other OLED displays, the Galaxy S24 Ultra stands out with this graininess problem. Reports suggest Samsung may have addressed this in the Galaxy S25 Ultra by using M13+ panels.
Permanent smudges
Some Galaxy S24 Ultra users face persistent smudges on their screens, likely due to premature wear of the oleophobic coating. This coating, which resists fingerprints and smudges, can degrade over time, leaving the display looking permanently dirty.
This issue affects a significant percentage of Galaxy S24 Ultra users, based on surveys. Owners without this problem are advised to use a screen protector to prevent it. Samsung must address this on the Galaxy S25 Ultra to maintain the high standards expected of a premium smartphone.
Better dimming options
Research shows that PWM dimming on displays and LEDs can cause health issues. Most smartphone manufacturers have taken steps to offer flicker-free options, but Samsung continues to utilize flickering displays. The lack of eye-friendly dimming options can be detrimental to long-term user health.
With the Galaxy S25 series, Samsung has the opportunity to lead the industry in addressing this concern and prioritizing user well-being. Companies like OnePlus, Vivo, and Oppo have already implemented flicker-free displays, setting a precedent for Samsung to follow.
Don’t forget the fans
At launch, the Galaxy S24 Ultra’s display appeared dull compared to previous Galaxy flagships. While Samsung made color adjustments to improve realism, some users prefer vibrant colors. A patch released after the launch provided a vibrancy slider to meet user preferences.
Samsung should ensure that options for color customization are included in the Galaxy S25 Ultra to cater to different user preferences and expectations.