Looking for an honest Samsung Galaxy S25 Ultra 5G vs Xiaomi 15 Ultra comparison in 2026? We scored both smartphones on the same six-dimension framework — performance, battery, display, camera, design and value — using identical methodology, so the numbers below are directly comparable. In our overall scoring the Samsung Galaxy S25 Ultra 5G comes out ahead 78/100 to 52/100 — a 26-point gap. The widest gap is in performance, where the Samsung Galaxy S25 Ultra 5G pulls noticeably ahead. On price the Xiaomi 15 Ultra undercuts the Samsung Galaxy S25 Ultra 5G by 18% ($1,099 vs $1,299), which materially changes the value calculus for budget-conscious buyers.
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Samsung Galaxy S25 Ultra 5G clearly outperforms the Xiaomi 15 Ultra in the smartphones category, especially in performance (benchmark 220 vs 50), scoring 78 vs 52. If you want the better overall smartphones, Samsung Galaxy S25 Ultra 5G is the recommended choice.
Picking Samsung Galaxy S25 Ultra 5G over Xiaomi 15 Ultra means trading these off.
✓ Pros
✗ Cons
✓ Pros
| Spec | Samsung Galaxy S25 Ultra 5GW | Xiaomi 15 Ultra |
|---|---|---|
| Display | 6.9"✓ | 6.73" |
| Display Type | Dynamic AMOLED 2X | LTPO AMOLED |
| Resolution | — | 3200 x 1440 pixels |
| Refresh Rate | 120Hz | 120Hz |
| Brightness | — | 3200nits |
| HDR | — |
Buy Samsung Galaxy S25 Ultra 5G if…
Buy the Samsung Galaxy S25 Ultra 5G if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
Buy Xiaomi 15 Ultra if…
Choose the Xiaomi 15 Ultra if budget is your top priority — it offers competitive specs at a lower price point.
Samsung Galaxy S25 Ultra 5G clearly outperforms the Xiaomi 15 Ultra in the smartphones category, especially in performance (benchmark 220 vs 50), scoring 78 vs 52. If you want the better overall smartphones, Samsung Galaxy S25 Ultra 5G is the recommended choice.
Yes, Samsung Galaxy S25 Ultra 5G scores higher overall (78 vs 52).
Xiaomi 15 Ultra is cheaper at $1099 vs $1299 for the Samsung Galaxy S25 Ultra 5G.
Buy the Samsung Galaxy S25 Ultra 5G if you want the best performance in this comparison. It scores higher overall and is the recommended choice for most buyers.
Choose the Xiaomi 15 Ultra if budget is your top priority — it offers competitive specs at a lower price point.
Xiaomi 15 Ultra has a larger battery (6,000mAh vs 5,000mAh for the Samsung Galaxy S25 Ultra 5G), which generally means longer use between charges.
Samsung Galaxy S25 Ultra 5G has the larger display (6.9" vs 6.73").
Reviewed by VersusMatrix Editorial Team
Last updated: May 11, 2026
Methodology: AI-powered analysis of technical specifications from manufacturer data. Scores are calculated by comparing products across multiple dimensions and normalized relative to the full category database. Our editorial process is independent and not influenced by affiliate partnerships.
Scores are relative within the smartphonescategory. Percentages show each dimension's weight in the overall score. A difference of less than 0.5 points is considered a tie.
✗ Cons
| HDR10+, Dolby Vision |
| Protection | — | Gorilla Glass Victus 2 |
| Chipset | Snapdragon 8 Elite | Qualcomm Snapdragon 8 Elite |
| CPU | — | Octa-core (2x4.32 GHz Oryon V2 + 6x3.53 GHz Oryon V2) |
| GPU | — | Adreno 830 |
| RAM | 12GB | 12GB |
| Storage | 256GB | 512GB✓ |
| Storage Options | — | 512GB |
| Main Camera | 200MP✓ | 50MP |
| Aperture | — | f/1.63 |
| OIS | — | Yes |
| Zoom | — | 4.3x optical, 10x optical periscope |
| Video | — | 8K@30fps, 4K@120fps |
| Front Camera | 12MP | 32MP✓ |
| Battery | 5000mAh | 6000mAh✓ |
| Charging | 45W | 90W✓ |
| Wireless Charging | — | 80W |
| OS | Android 15 | Android 15, HyperOS 2 |
| Wi-Fi | — | Wi-Fi 7 (802.11be) |
| Bluetooth | — | Bluetooth 5.4 |
| NFC | — | Yes |
| USB | — | USB-C 3.2 Gen 2 |
| Water Resistance | IP68 | IP68 |
| Biometrics | — | Under-display fingerprint, Face unlock |
| Dimensions | — | 161.4 x 75.3 x 9.5 mm |
| Weight | 218g✓ | 229g |
| Colors | — | Black, White |
| Price | 1299$ | 1099$ |
Samsung Galaxy S25 Ultra 5G has a higher-resolution main camera (200MP vs 50MP). Note that megapixels are one factor — sensor quality and processing also matter.
Samsung Galaxy S25 Ultra 5G is lighter at 218g vs 229g.