Samsung Galaxy S21 Ultra vs Xiaomi 13
37.2Performance51.7
56.3Display52.8
72Camera52
46.4Battery62.5
78.7Features65.3
9 spec wins — Samsung Galaxy S21 Ultra8 spec wins — Xiaomi 13
InnoReviews verdict
Xiaomi 13 wins this phone face-off, 55.5 to 53.9, pulling ahead mainly in battery (+16) and performance (+15). Samsung Galaxy S21 Ultra 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 Ultra
- Stronger display score: 56 vs 53
- Stronger camera score: 72 vs 52
- Stronger features score: 79 vs 65
- 213% higher Optical zoom: 10 x vs 3.2 x
- 116% higher Main camera: 108 MP vs 50 MP
Reasons to pick the Xiaomi 13
- Stronger performance score: 52 vs 37
- Stronger battery score: 63 vs 46
- 233% higher Wireless charging: 50 W vs 15 W
- 168% higher Wired charging: 67 W vs 25 W
- 98% higher AnTuTu 10: 1,550,000 vs 783,817
- Lower launch price: $899 vs $1,199
Display
| Spec | Samsung Galaxy S21 Ultra | Xiaomi 13 |
|---|---|---|
| Screen size | 6.8 ″+7% | 6.36 ″ |
| Panel type | LTPO AMOLED | OLED |
| Resolution | 3200x1440 | 2400x1080 |
| Pixel density | 515 ppi+24% | 414 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,500 nits | 1,900 nits+27% |
| AnTuTu 10 (CPU) | 263,424Top 88% | — |
| AnTuTu 10 (GPU) | 126,989Top 82% | — |
| AnTuTu 10 (Memory) | 165,563Top 72% | — |
| AnTuTu 10 (UX) | 227,841Top 82% | — |
Performance
| Spec | Samsung Galaxy S21 Ultra | Xiaomi 13 |
|---|---|---|
| Chipset | Samsung Exynos 2100 | Snapdragon 8 Gen 2 |
| AnTuTu 10 | 783,817Top 65% | 1,550,000+98%Top 22% |
| Geekbench 6 (single) | 1,430Top 52% | 2,050+43%Top 31% |
| Geekbench 6 (multi) | 3,550Top 56% | 5,500+55%Top 28% |
| RAM (max) | 12 GB+50% | 8 GB |
| Storage options | 128GB / 256GB / 512GB | 128GB / 256GB / 512GB |
| Storage type | UFS 3.1 | UFS 4.0 |
Camera
| Spec | Samsung Galaxy S21 Ultra | Xiaomi 13 |
|---|---|---|
| Main camera | 108 MP+116% | 50 MP |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | 12 MP | 12 MP |
| Telephoto | 10 MP | 10 MP |
| Optical zoom | 10 x+213% | 3.2 x |
| Max video | 8K@24fps | 8K@24fps |
| Front camera | 40 MP+25% | 32 MP |
| OIS | Yes | Yes |
Battery
| Spec | Samsung Galaxy S21 Ultra | Xiaomi 13 |
|---|---|---|
| Capacity | 5,000 mAh+11% | 4,500 mAh |
| Wired charging | 25 W | 67 W+168% |
| Wireless charging | 15 W | 50 W+233% |
Design
| Spec | Samsung Galaxy S21 Ultra | Xiaomi 13 |
|---|---|---|
| Weight | 228 g | 189 g+17% |
| Thickness | 8.9 mm | 8 mm+10% |
| IP rating | IP68 | IP68 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | Samsung Galaxy S21 Ultra | Xiaomi 13 |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6E | Wi-Fi 6E |
| Bluetooth | 5.2 | 5.3 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 | USB-C 2.0 |
| eSIM | Yes | No |
Software
| Spec | Samsung Galaxy S21 Ultra | Xiaomi 13 |
|---|---|---|
| OS at launch | Android 11 (One UI 3.1) | Android 13 (MIUI 14) |
| OS update pledge | 4 years+33% | 3 years |
Audio
| Spec | Samsung Galaxy S21 Ultra | Xiaomi 13 |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |