POCO X3 NFC vs Samsung Galaxy S21 Ultra
23.6Performance37.2
60.2Display56.3
34.2Camera72
49.4Battery46.4
44Features78.7
5 spec wins — POCO X3 NFC13 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
Samsung Galaxy S21 Ultra wins this phone face-off, 53.9 to 40.2, pulling ahead mainly in camera (+38) and features (+35). POCO X3 NFC still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the POCO X3 NFC
- Stronger display score: 60 vs 56
- Stronger battery score: 49 vs 46
- 32% higher Wired charging: 33 W vs 25 W
- Has 3.5mm jack — the other doesn't
- Lower launch price: $229 vs $1,199
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger performance score: 37 vs 24
- Stronger camera score: 72 vs 34
- Stronger features score: 79 vs 44
- 100% higher RAM (max): 12 GB vs 6 GB
- 100% higher Front camera: 40 MP vs 20 MP
Display
| Spec | POCO X3 NFC | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.67 ″ | 6.8 ″+2% |
| Panel type | IPS LCD | LTPO AMOLED |
| Resolution | 2400x1080 | 3200x1440 |
| Pixel density | 395 ppi | 515 ppi+30% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | — | 1,500 nits |
| 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 | POCO X3 NFC | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | Snapdragon 732G | Samsung Exynos 2100 |
| AnTuTu 10 | 410,000Top 83% | 783,817+91%Top 65% |
| Geekbench 6 (single) | 740Top 81% | 1,430+93%Top 52% |
| Geekbench 6 (multi) | 1,950Top 84% | 3,550+82%Top 56% |
| RAM (max) | 6 GB | 12 GB+100% |
| Storage options | 64GB / 128GB | 128GB / 256GB / 512GB |
| Storage type | UFS 2.1 | UFS 3.1 |
Camera
| Spec | POCO X3 NFC | Samsung Galaxy S21 Ultra |
|---|---|---|
| Main camera | 64 MP | 108 MP+69% |
| Main aperture | f/1.9 | f/1.8 |
| Ultra-wide | 13 MP+8% | 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 X3 NFC | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 5,160 mAh+3% | 5,000 mAh |
| Wired charging | 33 W+32% | 25 W |
| Wireless charging | — | 15 W |
Design
| Spec | POCO X3 NFC | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 215 g+6% | 228 g |
| Thickness | 9.4 mm | 8.9 mm+5% |
| IP rating | IP53 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | POCO X3 NFC | Samsung Galaxy S21 Ultra |
|---|---|---|
| 5G | No | 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 X3 NFC | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 10 (MIUI 12) | Android 11 (One UI 3.1) |
| OS update pledge | 2 years | 4 years+100% |
Audio
| Spec | POCO X3 NFC | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | Yes | No |