Samsung Galaxy S8+ vs Xiaomi 15 Ultra
The Samsung Galaxy S8+ (2017) runs on the Samsung Exynos 8895, while the Xiaomi 15 Ultra (2025) runs on the Qualcomm Snapdragon 8 Elite; launch prices were $840 and $999. By overall MobileRank rating, the Xiaomi 15 Ultra leads — 85/100 vs 28/100 (a 57-point difference). Key differences: the Xiaomi 15 Ultra has the bigger battery (6000 mAh vs 3500); the main camera is 12 MP vs 50 MP; the Xiaomi 15 Ultra is faster in AnTuTu (3,030,376 vs 437,463); the Samsung Galaxy S8+ is noticeably lighter (173g vs 225g).
Samsung Galaxy S8+
Xiaomi 15 Ultra
- Lighter: 173g vs 225g
- Cheaper at launch: $840 vs $999
- Better portability (74/100 vs 29/100)
- Higher AnTuTu: 3030376 vs 437463
- Better Geekbench Single: 3050 vs 419
- Better Geekbench Multi: 10200 vs 1445
- Bigger battery: 6000 vs 3500 mAh
- Better main camera: 50MP vs 12MP
- Higher refresh rate: 120Hz vs 60Hz
- Higher performance (92/100 vs 32/100)
- Better camera (87/100 vs 10/100)
- Longer battery life (80/100 vs 15/100)
- Better display (90/100 vs 51/100)
Comparing the Samsung Galaxy S8+ vs the Xiaomi 15 Ultra, the Xiaomi 15 Ultra scores 57 points higher (85/100 vs 28/100). In the "performance" category, the Xiaomi 15 Ultra leads (92/100 vs 32/100). In the "camera" category, the Xiaomi 15 Ultra leads (87/100 vs 10/100). In the "battery" category, the Xiaomi 15 Ultra leads (80/100 vs 15/100). Value score: Samsung Galaxy S8+ — 0/100, 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 S8+ (92/100 vs 32/100). In the "display" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S8+ (90/100 vs 51/100). In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S8+ (87/100 vs 10/100). In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S8+ (80/100 vs 15/100). In the "portability" category, the Samsung Galaxy S8+ significantly outperforms the Xiaomi 15 Ultra (74/100 vs 29/100).
| Specification | Samsung Galaxy S8+ | Xiaomi 15 Ultra | |
|---|---|---|---|
| Processor | Samsung Exynos 8895 | Qualcomm Snapdragon 8 Elite | |
| AnTuTu | 437463 | 3030376 | |
| Geekbench Single | 419 | 3050 | |
| Geekbench Multi | 1445 | 10200 | |
| Display | 6.2" AMOLED | 6.7" LTPO AMOLED | |
| Resolution | — | 3200x1440 | |
| Refresh rate | 60 Hz | 120 Hz | |
| Battery | 3500 mAh | 6000 mAh | |
| Charging | — | 90W | |
| Wireless charging | — | 50W | |
| DXOMark (camera) | — | 159 | |
| Main camera | 12 MP | 50 MP | |
| Ultrawide | 0 MP | 50 MP | |
| Telephoto | 0 MP | 50 MP | |
| Front camera | 8 MP | 32 MP | |
| RAM | 4GB | 16GB | |
| Storage | 64GB | 256GB / 512GB / 1TB | |
| OS | — | Android 15 / HyperOS 2 | |
| Brightness (peak) | — | 3200 nits | |
| NFC | yes | yes | |
| Protection | IP68 | IP68 | |
| Dimensions | 159.5×73.4×8.1 mm | 161.3×75.3×9.4 mm | |
| Weight | 173 g | 225 g | |
| Launch price | $840 | $999 |
Samsung Galaxy S8+
- Main: 12MP
- Front: 8MP
Xiaomi 15 Ultra
- Main: 50MP f/f/1.63
- Ultrawide: 50MP
- Telephoto: 50MP
- Front: 32MP
Samsung Galaxy S8+
- 6.2" AMOLED
- Refresh rate: 60 Hz
Xiaomi 15 Ultra
- 6.7" LTPO AMOLED
- Resolution: 3200x1440
- Refresh rate: 120 Hz
Samsung Galaxy S8+
- 3500 mAh
- Wireless: supported, wattage unknown
Xiaomi 15 Ultra
- 6000 mAh
- NanoReview test: web browsing 12:19 hrs, total 30:03 hrs
- Wired: 90W
- Wireless: 50W
We compared Samsung Galaxy S8+ and Xiaomi 15 Ultra, covering their specs and all relevant benchmarks.
Xiaomi 15 Ultra leads Samsung Galaxy S8+ by 85.6% in our overall performance rating.
Launch price difference: $159. Samsung Galaxy S8+ was $159 cheaper at launch.
performance
In the "performance" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S8+ (92/100 vs 32/100).
display
In the "display" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S8+ (90/100 vs 51/100).
camera
In the "camera" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S8+ (87/100 vs 10/100).
battery
In the "battery" category, the Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S8+ (80/100 vs 15/100).
portability
In the "portability" category, the Samsung Galaxy S8+ significantly outperforms the Xiaomi 15 Ultra (74/100 vs 29/100).
Which is better: the Samsung Galaxy S8+ or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra significantly outperforms the Samsung Galaxy S8+ by 57 points (85/100 vs 28/100).
What is the rating of the Samsung Galaxy S8+ and the Xiaomi 15 Ultra?
The Samsung Galaxy S8+ has a MobileRank rating of 28/100, the Xiaomi 15 Ultra — 85/100.
Which has the better camera: the Samsung Galaxy S8+ or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on camera score (87/100 vs 10/100).
Which is more powerful: the Samsung Galaxy S8+ or the Xiaomi 15 Ultra?
The Xiaomi 15 Ultra leads on performance (92/100 vs 32/100).
Should you choose the Samsung Galaxy S8+ over the Xiaomi 15 Ultra?
The Samsung Galaxy S8+ 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.