Samsung Galaxy S21 Ultra vs vivo X100 Ultra
37.2Performance64.4
56.3Display67.6
72Camera75.8
46.4Battery75.5
78.7Features86.7
6 spec wins — Samsung Galaxy S21 Ultra9 spec wins — vivo X100 Ultra
InnoReviews verdict
vivo X100 Ultra wins this phone face-off, 71.8 to 53.9, pulling ahead mainly in battery (+29) and performance (+27). 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
- 170% higher Optical zoom: 10 x vs 3.7 x
- 116% higher Main camera: 108 MP vs 50 MP
- Has eSIM — the other doesn't
Reasons to pick the vivo X100 Ultra
- Stronger performance score: 64 vs 37
- Stronger display score: 68 vs 56
- Stronger camera score: 76 vs 72
- Stronger battery score: 76 vs 46
- Stronger features score: 87 vs 79
Display
| Spec | Samsung Galaxy S21 Ultra | vivo X100 Ultra |
|---|---|---|
| Screen size | 6.8 ″ | 6.78 ″ |
| Panel type | LTPO AMOLED | LTPO AMOLED |
| Resolution | 3200x1440 | 1440x3200 |
| Pixel density | 515 ppi | 517 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,500 nits | 3,000 nits+100% |
| Screen-to-body | — | 89.8 % |
Performance
| Spec | Samsung Galaxy S21 Ultra | vivo X100 Ultra |
|---|---|---|
| Chipset | Samsung Exynos 2100 | Qualcomm Snapdragon 8 Gen 3 |
| 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) | 1,430Top 46% | — |
| Geekbench 6 (multi) | 3,550Bottom 50% | — |
| RAM (max) | 12 GB | 16 GB+33% |
| Storage options | 128GB / 256GB / 512GB | 256/512GB/1TB |
| Storage type | UFS 3.1 | UFS 4.0 |
Camera
| Spec | Samsung Galaxy S21 Ultra | vivo X100 Ultra |
|---|---|---|
| Main camera | 108 MP+116% | 50 MP |
| Main aperture | f/1.8 | f/1.75 |
| Ultra-wide | 12 MP | 50 MP+317% |
| Telephoto | 10 MP | 200 MP+1900% |
| Optical zoom | 10 x+170% | 3.7 x |
| Max video | 8K@24fps | 8K@30fps |
| Front camera | 40 MP | 50 MP+25% |
| OIS | Yes | Yes |
Battery
| Spec | Samsung Galaxy S21 Ultra | vivo X100 Ultra |
|---|---|---|
| Capacity | 5,000 mAh | 5,500 mAh+10% |
| Wired charging | 25 W | 80 W+220% |
| Wireless charging | 15 W | 30 W+100% |
| Active use endurance | — | 12.9 h |
Design
| Spec | Samsung Galaxy S21 Ultra | vivo X100 Ultra |
|---|---|---|
| Weight | 228 g | 229 g |
| Thickness | 8.9 mm+4% | 9.2 mm |
| IP rating | IP68 | IP68/IP69 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | Samsung Galaxy S21 Ultra | vivo X100 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6E | Wi-Fi 7 |
| Bluetooth | 5.2 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C 3.2 | USB-C 3.2 |
| eSIM | Yes | No |
Software
| Spec | Samsung Galaxy S21 Ultra | vivo X100 Ultra |
|---|---|---|
| OS at launch | Android 11 (One UI 3.1) | Android 14 (OriginOS 4) |
| OS update pledge | 4 years | — |
Audio
| Spec | Samsung Galaxy S21 Ultra | vivo X100 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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