Samsung Galaxy S20 Ultra vs Xiaomi 15 Ultra
The Samsung Galaxy S20 Ultra (2020) runs on the Samsung Exynos 990, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $1399 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 64/100 (a 21-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 5000); the main camera is 108 MP vs 50 MP; the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 901,346).
Samsung Galaxy S20 Ultra
Xiaomi 15 Ultra
- Better main camera: 108MP vs 50MP
- Lighter: 222g vs 225g
- Better portability (37/100 vs 29/100)
- Higher AnTuTu: 3030376 vs 901346
- Better Geekbench Single: 3050 vs 1222
- Better Geekbench Multi: 10200 vs 3060
- Bigger battery: 6000 vs 5000 mAh
- Faster charging: 90W vs 45W
- Faster wireless charging: 50W vs 15W
- Cheaper at launch: $999 vs $1399
- Higher performance (92/100 vs 58/100)
- Better camera (87/100 vs 73/100)
- Longer battery life (80/100 vs 56/100)
- Better display (90/100 vs 88/100)
Comparing the Samsung Galaxy S20 Ultra vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 21 points higher (85/100 vs 64/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 58/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 73/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 56/100). Value score: Samsung Galaxy S20 Ultra — 34/100, Xiaomi 15 Ultra — 82/100; it is biased by price level, so it should not be compared directly between devices at different prices. In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S20 Ultra (92/100 vs 58/100). In the "display" category, the Xiaomi 15 Ultra and the Samsung Galaxy S20 Ultra are nearly equal (90/100 vs 88/100). In the "camera" category, the Xiaomi 15 Ultra is a bit better (87/100 vs 73/100). In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Samsung Galaxy S20 Ultra (80/100 vs 56/100). In the "portability" category, the Samsung Galaxy S20 Ultra is a bit better (37/100 vs 29/100).
| Specification | Samsung Galaxy S20 Ultra | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Samsung Exynos 990 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 901346 | 3030376 | |
| Geekbench Single | 1222 | 3050 | |
| Geekbench Multi | 3060 | 10200 | |
| Display | 6.9" Dynamic AMOLED 2X | 6.7" LTPO AMOLED | |
| Resolution | 3200x1440 | 3200x1440 | |
| Refresh rate | 120 Hz | 120 Hz | |
| Battery | 5000 mAh | 6000 mAh | |
| Charging | 45W | 90W | |
| Wireless charging | 15W | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 108 MP | 50 MP | |
| Ultrawide | 12 MP | 50 MP | |
| Telephoto | 48 MP | 50 MP | |
| Front camera | 40 MP | 32 MP | |
| RAM | 12GB / 16GB | 16GB | |
| Storage | 128GB / 256GB / 512GB | 256GB / 512GB / 1TB | |
| OS | Android 10 | Android 15 / HyperOS 2 | |
| Brightness (peak) | — | 3200 nits | |
| NFC | — | yes | |
| Protection | — | IP68 | |
| Dimensions | — | 161.3×75.3×9.4 mm | |
| Weight | 222 g | 225 g | |
| Launch price | $1399 | $999 |
Samsung Galaxy S20 Ultra
- Main: 108MP f/f/1.8
- Ultrawide: 12MP
- Telephoto: 48MP
- Front: 40MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S20 Ultra
- 6.9" Dynamic AMOLED 2X
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Samsung Galaxy S20 Ultra
- 5000 mAh
- Wired: 45W
- Wireless: 15W
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Samsung Galaxy S20 Ultra and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Samsung Galaxy S20 Ultra by 70.3% in our overall performance rating.
Launch price difference: $400. Xiaomi 15 Ultra was $400 cheaper at launch.
performance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S20 Ultra (92/100 vs 58/100).
display
In the "display" category, the Xiaomi 15 Ultra and the Samsung Galaxy S20 Ultra are nearly equal (90/100 vs 88/100).
camera
In the "camera" category, the Xiaomi 15 Ultra is a bit better (87/100 vs 73/100).
battery
In the "battery" category, the Xiaomi 15 Ultra notably outperforms the Samsung Galaxy S20 Ultra (80/100 vs 56/100).
portability
In the "portability" category, the Samsung Galaxy S20 Ultra is a bit better (37/100 vs 29/100).
Which is better: the Samsung Galaxy S20 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S20 Ultra by 21 points (85/100 vs 64/100).
What is the rating of the Samsung Galaxy S20 Ultra and the Xiaomi 15 Ultra?
The Samsung Galaxy S20 Ultra has a MobileRank rating of 64/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Samsung Galaxy S20 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 73/100).
Which is more powerful: the Samsung Galaxy S20 Ultra or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 58/100).
Should you choose the Samsung Galaxy S20 Ultra over the Xiaomi 15 Ultra?
The Samsung Galaxy S20 Ultra is a better fit for everyday use. The Xiaomi 15 Ultra is a better fit for gamers and power users, mobile photography enthusiasts, those who care about battery life, budget-conscious buyers.