Samsung Galaxy S21 vs Xiaomi 15S Pro
34.4Performance72.8
49.1Display69.1
40.8Camera69.5
36.9Battery82
78.7Features86.7
4 spec wins — Samsung Galaxy S2112 spec wins — Xiaomi 15S Pro
InnoReviews verdict
Xiaomi 15S Pro wins this phone face-off, 74.6 to 43.6, pulling ahead mainly in battery (+45) and performance (+38). Samsung Galaxy S21 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the Samsung Galaxy S21
- 28% higher telephoto: 64 MP vs 50 MP
- 21% lower weight: 171 g vs 216 g
- Has eSIM — the other doesn't
Reasons to pick the Xiaomi 15S Pro
- Stronger performance score: 73 vs 34
- Stronger display score: 69 vs 49
- Stronger camera score: 70 vs 41
- Stronger battery score: 82 vs 37
- Stronger features score: 87 vs 79
Display
| Spec | Samsung Galaxy S21 | Xiaomi 15S Pro |
|---|---|---|
| Screen size | 6.2 ″ | 6.73 ″+9% |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 2400x1080 | 1440x3200 |
| Pixel density | 421 ppi | 521 ppi+24% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,300 nits | 3,200 nits+146% |
| Screen-to-body | — | 90 % |
Performance
| Spec | Samsung Galaxy S21 | Xiaomi 15S Pro |
|---|---|---|
| Chipset | Samsung Exynos 2100 | Xiaomi XRing O1 |
| AnTuTu | 746,547Bottom 18% | — |
| AnTuTu 11 (CPU) | 252,025Bottom 14% | — |
| AnTuTu 11 (GPU) | 127,819Bottom 35% | — |
| AnTuTu 11 (Memory) | 144,909Bottom 16% | — |
| AnTuTu 11 (UX) | 221,794Bottom 18% | — |
| Geekbench 6 (single) | 1,430Top 46% | 2,985+109%Top 14% |
| Geekbench 6 (multi) | 3,550Bottom 50% | 9,250+161%Top 13% |
| Wild Life Extreme stability | — | 86 %Top 50% |
| RAM (max) | 8 GB | 16 GB+100% |
| Storage options | 128GB / 256GB | 512GB/1TB |
| Storage type | UFS 3.1 | UFS 4.1 |
Camera
| Spec | Samsung Galaxy S21 | Xiaomi 15S Pro |
|---|---|---|
| Main camera | 12 MP | 50 MP+317% |
| Main aperture | f/1.8 | f/1.44 |
| Ultra-wide | 12 MP | 50 MP+317% |
| Telephoto | 64 MP+28% | 50 MP |
| Optical zoom | — | 5 x |
| Max video | 8K@24fps | 8K@24fps |
| Front camera | 10 MP | 32 MP+220% |
| OIS | Yes | Yes |
Battery
| Spec | Samsung Galaxy S21 | Xiaomi 15S Pro |
|---|---|---|
| Capacity | 4,000 mAh | 6,100 mAh+53% |
| Wired charging | 25 W | 90 W+260% |
| Wireless charging | 15 W | 50 W+233% |
Design
| Spec | Samsung Galaxy S21 | Xiaomi 15S Pro |
|---|---|---|
| Weight | 171 g+21% | 216 g |
| Thickness | 7.9 mm+5% | 8.3 mm |
| IP rating | IP68 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | Samsung Galaxy S21 | Xiaomi 15S Pro |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5.0 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 | USB-C 3.2 Gen 2 |
| eSIM | Yes | No |
Software
| Spec | Samsung Galaxy S21 | Xiaomi 15S Pro |
|---|---|---|
| OS at launch | Android 11 (One UI 3.1) | Android 15 (HyperOS 2) |
| OS update pledge | 4 years | — |
Audio
| Spec | Samsung Galaxy S21 | Xiaomi 15S Pro |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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