OnePlus 15T vs Samsung Galaxy S21 Ultra
64.4Performance37.2
89.7Display56.3
54.2Camera72
92Battery46.4
60Features78.7
8 spec wins — OnePlus 15T5 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
OnePlus 15T wins this phone face-off, 72.5 to 53.9, pulling ahead mainly in battery (+46) and display (+33). 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 OnePlus 15T
- Stronger performance score: 64 vs 37
- Stronger display score: 90 vs 56
- Stronger battery score: 92 vs 46
- 400% higher telephoto: 50 MP vs 10 MP
- 300% higher Wired charging: 100 W vs 25 W
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger camera score: 72 vs 54
- Stronger features score: 79 vs 60
- 186% higher Optical zoom: 10 x vs 3.5 x
- 150% higher Front camera: 40 MP vs 16 MP
- 116% higher Main camera: 108 MP vs 50 MP
Display
| Spec | OnePlus 15T | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.32 ″ | 6.8 ″+8% |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 1216x2640 | 3200x1440 |
| Pixel density | 460 ppi | 515 ppi+12% |
| Refresh rate | 165 Hz+38% | 120 Hz |
| Peak brightness | — | 1,500 nits |
Performance
| Spec | OnePlus 15T | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | Snapdragon 8 Elite Gen 5 | 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) | — | 1,430Top 46% |
| Geekbench 6 (multi) | — | 3,550Bottom 50% |
| RAM (max) | 16 GB+33% | 12 GB |
| Storage options | 256/512GB/1TB | 128GB / 256GB / 512GB |
| Storage type | UFS 4.1 | UFS 3.1 |
Camera
| Spec | OnePlus 15T | Samsung Galaxy S21 Ultra |
|---|---|---|
| Main camera | 50 MP | 108 MP+116% |
| Main aperture | — | f/1.8 |
| Ultra-wide | — | 12 MP |
| Telephoto | 50 MP+400% | 10 MP |
| Optical zoom | 3.5 x | 10 x+186% |
| Max video | — | 8K@24fps |
| Front camera | 16 MP | 40 MP+150% |
| OIS | Yes | Yes |
Battery
| Spec | OnePlus 15T | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 7,500 mAh+50% | 5,000 mAh |
| Wired charging | 100 W+300% | 25 W |
| Wireless charging | 50 W+233% | 15 W |
Design
| Spec | OnePlus 15T | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 194 g+15% | 228 g |
| Thickness | 8.5 mm+5% | 8.9 mm |
| IP rating | IP66/IP68/IP69/IP69K | IP68 |
| Frame material | — | Aluminum |
Connectivity
| Spec | OnePlus 15T | Samsung Galaxy S21 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 7 | Wi-Fi 6E |
| Bluetooth | 6.0 | 5.2 |
| NFC | Yes | Yes |
| USB | — | USB-C 3.2 |
| eSIM | — | Yes |
Software
| Spec | OnePlus 15T | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 16 (ColorOS 16) | Android 11 (One UI 3.1) |
| OS update pledge | — | 4 years |
Audio
| Spec | OnePlus 15T | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | — | Yes |
| 3.5mm jack | — | No |