POCO X6 vs Samsung Galaxy S21 Ultra
25.3Performance37.2
54.1Display56.3
44.1Camera72
59.3Battery46.4
65.3Features78.7
6 spec wins — POCO X610 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
Samsung Galaxy S21 Ultra wins this phone face-off, 53.9 to 45.6, pulling ahead mainly in camera (+28) and features (+13). POCO X6 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the POCO X6
- Stronger battery score: 59 vs 46
- 168% higher Wired charging: 67 W vs 25 W
- 21% lower weight: 181 g vs 228 g
- 20% higher Peak brightness: 1,800 nits vs 1,500 nits
- 10% lower thickness: 8 mm vs 8.9 mm
- Lower launch price: $249 vs $1,199
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger performance score: 37 vs 25
- Stronger camera score: 72 vs 44
- Stronger features score: 79 vs 65
- 150% higher Front camera: 40 MP vs 16 MP
- 69% higher Main camera: 108 MP vs 64 MP
Display
| Spec | POCO X6 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.67 ″ | 6.8 ″+2% |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1220x2712 | 3200x1440 |
| Pixel density | 446 ppi | 515 ppi+15% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,800 nits+20% | 1,500 nits |
Performance
| Spec | POCO X6 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | Snapdragon 7s Gen 2 | Samsung Exynos 2100 |
| AnTuTu | — | 783,817Bottom 22% |
| AnTuTu 11 (CPU) | — | 263,424Bottom 17% |
| AnTuTu 11 (GPU) | — | 126,989Bottom 33% |
| AnTuTu 11 (Memory) | — | 165,563Bottom 35% |
| AnTuTu 11 (UX) | — | 227,841Bottom 20% |
| Geekbench 6 (single) | 1,011Bottom 31% | 1,430+41%Top 46% |
| Geekbench 6 (multi) | 2,816Bottom 33% | 3,550+26%Bottom 50% |
| Wild Life Extreme stability | 98 %Top 43% | — |
| RAM (max) | 12 GB | 12 GB |
| Storage options | 256/512GB | 128GB / 256GB / 512GB |
| Storage type | UFS 2.2 | UFS 3.1 |
Camera
| Spec | POCO X6 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Main camera | 64 MP | 108 MP+69% |
| Main aperture | f/1.79 | f/1.8 |
| Ultra-wide | 8 MP | 12 MP+50% |
| Telephoto | — | 10 MP |
| Optical zoom | — | 10 x |
| Max video | 4K@30fps | 8K@24fps |
| Front camera | 16 MP | 40 MP+150% |
| OIS | Yes | Yes |
Battery
| Spec | POCO X6 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 5,100 mAh+2% | 5,000 mAh |
| Wired charging | 67 W+168% | 25 W |
| Wireless charging | 0 W | 15 W |
Design
| Spec | POCO X6 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 181 g+21% | 228 g |
| Thickness | 8 mm+10% | 8.9 mm |
| IP rating | IP54 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | POCO X6 | Samsung Galaxy S21 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6E |
| Bluetooth | 5.2 | 5.2 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | POCO X6 | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 13 (MIUI 14) | Android 11 (One UI 3.1) |
| OS update pledge | 3 years | 4 years+33% |
Audio
| Spec | POCO X6 | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | Yes | No |