POCO M8 5G vs Samsung Galaxy S21 Ultra
35Performance37.2
64Display56.3
31.6Camera72
57.4Battery46.4
70.7Features78.7
10 spec wins — POCO M8 5G9 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
Samsung Galaxy S21 Ultra wins this phone face-off, 53.9 to 48.2, pulling ahead mainly in camera (+40) and features (+8). POCO M8 5G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the POCO M8 5G
- Stronger display score: 64 vs 56
- Stronger battery score: 57 vs 46
- 113% higher Peak brightness: 3,200 nits vs 1,500 nits
- 80% higher Wired charging: 45 W vs 25 W
- 22% lower weight: 178 g vs 228 g
- Lower launch price: $229 vs $1,199
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger camera score: 72 vs 32
- Stronger features score: 79 vs 71
- 116% higher Main camera: 108 MP vs 50 MP
- 100% higher Front camera: 40 MP vs 20 MP
- 40% higher Geekbench 6 (single): 1,430 vs 1,024
Display
| Spec | POCO M8 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.77 ″ | 6.8 ″ |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1080x2392 | 3200x1440 |
| Pixel density | 388 ppi | 515 ppi+33% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 3,200 nits+113% | 1,500 nits |
| Screen-to-body | 92 % | — |
Performance
| Spec | POCO M8 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | Snapdragon 6 Gen 3 | Samsung Exynos 2100 |
| AnTuTu 11 | 837,903+7%Bottom 30% | 783,817Bottom 22% |
| AnTuTu 11 (CPU) | 292,124+11%Bottom 20% | 263,424Bottom 17% |
| AnTuTu 11 (GPU) | 130,371+3%Bottom 36% | 126,989Bottom 33% |
| AnTuTu 11 (Memory) | 179,700+9%Bottom 39% | 165,563Bottom 35% |
| AnTuTu 11 (UX) | 235,708+3%Bottom 25% | 227,841Bottom 20% |
| Geekbench 6 (single) | 1,024Bottom 35% | 1,430+40%Top 46% |
| Geekbench 6 (multi) | 2,960Bottom 38% | 3,550+20%Bottom 50% |
| Wild Life Extreme stability | 99 %Top 26% | — |
| RAM (max) | 12 GB | 12 GB |
| Storage options | 256/512GB | 128GB / 256GB / 512GB |
| Storage type | UFS 2.2 | UFS 3.1 |
Camera
| Spec | POCO M8 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Main camera | 50 MP | 108 MP+116% |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | — | 12 MP |
| Telephoto | — | 10 MP |
| Optical zoom | — | 10 x |
| Max video | 4K@30fps | 8K@24fps |
| Front camera | 20 MP | 40 MP+100% |
| OIS | No | Yes |
Battery
| Spec | POCO M8 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 5,520 mAh+10% | 5,000 mAh |
| Wired charging | 45 W+80% | 25 W |
| Wireless charging | 0 W | 15 W |
Design
| Spec | POCO M8 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 178 g+22% | 228 g |
| Thickness | 7.4 mm+17% | 8.9 mm |
| IP rating | IP66 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | POCO M8 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6E |
| Bluetooth | 5.1 | 5.2 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | POCO M8 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 15 (HyperOS 2) | Android 11 (One UI 3.1) |
| OS update pledge | 4 years | 4 years |
Audio
| Spec | POCO M8 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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