Samsung Galaxy S25 Ultra vs S24 Ultra: Screen Size & Display Comparison | Easy Compare
The Samsung Galaxy S25 Ultra and S24 Ultra are nearly identical in screen size — but there's more to the display story than a 0.1 inch difference in diagonal. Samsung made meaningful improvements to brightness, anti-reflective coating, and software that affect how the screen looks and feels every day. Here's the full comparison.
Bottom line: The S25 Ultra has a marginally larger screen (6.9" vs 6.8") with the same resolution but brighter peak output and better anti-glare. If you have an S24 Ultra, the display alone doesn't justify upgrading. If you're choosing between the two, the S25 Ultra's display is slightly better in real-world use.
Screen Size & Dimensions Comparison
| Spec | Galaxy S25 Ultra | Galaxy S24 Ultra |
|---|---|---|
| Screen size | 6.9 inches | 6.8 inches |
| Phone width | 77.6 mm (3.06") | 79.0 mm (3.11") |
| Phone height | 162.8 mm (6.41") | 162.3 mm (6.39") |
| Phone thickness | 8.2 mm (0.32") | 8.6 mm (0.34") |
| Weight | 218 g (7.7 oz) | 232 g (8.2 oz) |
| Screen-to-body ratio | ~91% | ~89% |
Interestingly, the S25 Ultra has a larger screen but a narrower and lighter body than the S24 Ultra. Samsung achieved this by reducing bezels and slimming the frame — so you get more screen in a slightly easier-to-hold package. The 14g weight reduction (from 232g to 218g) is noticeable during long use.
Display Technology & Resolution
| Spec | Galaxy S25 Ultra | Galaxy S24 Ultra |
|---|---|---|
| Display type | Dynamic AMOLED 2X | Dynamic AMOLED 2X |
| Resolution | 3088 × 1440 (QHD+) | 3088 × 1440 (QHD+) |
| Pixel density | 500 ppi | 505 ppi |
| Refresh rate | 1–120Hz adaptive | 1–120Hz adaptive |
| Peak brightness | 2,600 nits | 2,600 nits |
| HDR support | HDR10+ | HDR10+ |
| Anti-reflective glass | Corning Gorilla Armor 2 | Corning Gorilla Armor |
| Always-on display | Yes | Yes |
Both phones use the same resolution (3088 × 1440), so the S24 Ultra actually has a slightly higher pixel density (505 ppi) due to the smaller screen packing the same number of pixels. In practice, neither screen shows individual pixels at normal viewing distance — both look razor sharp.
The S25 Ultra's Gorilla Armor 2 coating is a meaningful real-world upgrade: Samsung claims it reduces reflections by 50% compared to the first-generation coating on the S24 Ultra. If you use your phone outdoors or in bright light frequently, this difference is visible.
Display Quality in Real-World Use
| Scenario | S25 Ultra | S24 Ultra |
|---|---|---|
| Outdoor sunlight visibility | ✅ Excellent (less glare) | ✅ Very good |
| HDR video (Netflix, YouTube) | ✅ Excellent | ✅ Excellent |
| S Pen writing experience | ✅ Very good | ✅ Very good |
| One-handed use comfort | ✅ Better (narrower) | ⚠️ Wider, harder to reach |
| Reading / text sharpness | ✅ Indistinguishable | ✅ Indistinguishable |
| Gaming (high refresh rate) | ✅ Excellent | ✅ Excellent |
The anti-reflective glass upgrade on the S25 Ultra is the standout real-world improvement for the display. In direct sunlight or under office lighting, the S25 Ultra's screen stays clearer and more readable. Both screens handle HDR content brilliantly — Samsung's AMOLED panels are among the best on any smartphone.
Should You Upgrade from S24 Ultra to S25 Ultra for the Display?
If you own an S24 Ultra: No. The display improvements — 0.1" larger diagonal and better anti-reflective glass — don't justify the upgrade cost on their own. The screens are functionally equivalent in brightness, resolution, and refresh rate. Upgrade for the Snapdragon 8 Elite chip, new AI features, or the titanium design — not the display.
If you're choosing between the two (buying new or refurbished): Pick the S25 Ultra. The narrower, lighter body combined with the better anti-glare coating makes it a better phone to hold and use daily, and the newer chip gives it a longer software support runway.
How Both Compare to iPhone 16 Pro Max
| Phone | Screen Size | Resolution | PPI | Peak Brightness |
|---|---|---|---|---|
| Galaxy S25 Ultra | 6.9" | 3088 × 1440 | 500 ppi | 2,600 nits |
| Galaxy S24 Ultra | 6.8" | 3088 × 1440 | 505 ppi | 2,600 nits |
| iPhone 16 Pro Max | 6.9" | 2868 × 1320 | 460 ppi | 2,000 nits |
On raw specs, the Samsung Ultra phones win on resolution and pixel density. The iPhone 16 Pro Max has the same 6.9" diagonal as the S25 Ultra but at lower resolution — though Apple's ProMotion OLED still looks exceptional in practice due to calibration and processing. The Samsung screens have higher peak brightness, which matters for outdoor use.
Frequently Asked Questions
Is the Galaxy S25 Ultra screen bigger than the S24 Ultra?
Yes, but only marginally — 6.9" vs 6.8", a 0.1 inch difference. The S25 Ultra also has a smaller overall body footprint because of reduced bezels, so you get more screen in a slightly narrower phone.
What is the resolution of the Galaxy S25 Ultra?
The Galaxy S25 Ultra has a 3088 × 1440 QHD+ resolution at 500 ppi. It uses a Dynamic AMOLED 2X panel with 1–120Hz adaptive refresh rate and 2,600 nit peak brightness.
Is the Galaxy S25 Ultra easier to hold than the S24 Ultra?
Yes. Despite a 0.1" larger screen, the S25 Ultra is actually narrower (77.6mm vs 79.0mm) and lighter (218g vs 232g), making it noticeably easier to hold and operate one-handed.
Does the S25 Ultra have better anti-glare than the S24 Ultra?
Yes. The S25 Ultra uses Corning Gorilla Armor 2 with Samsung claiming 50% less reflections compared to the S24 Ultra's Gorilla Armor 1. The difference is visible in bright outdoor conditions.
Want to compare phone screen sizes visually? Use the 6.9 vs 6.8 inch phone comparison on Easy Compare to see how the S25 Ultra and S24 Ultra screens stack up side by side.