OPPO K15 vs Samsung Galaxy S25 Ultra
46.7Performance80
53.6Display66.7
58.6Camera74
79.8Battery65.8
86.7Features94.7
4 spec wins — OPPO K158 spec wins — Samsung Galaxy S25 Ultra
InnoReviews verdict
Samsung Galaxy S25 Ultra wins this phone face-off, 74.8 to 61.1, pulling ahead mainly in performance (+33) and camera (+15). OPPO K15 still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the OPPO K15
- Stronger battery score: 80 vs 66
- 317% higher Front camera: 50 MP vs 12 MP
- 78% higher Wired charging: 80 W vs 45 W
- 60% higher capacity: 8,000 mAh vs 5,000 mAh
Reasons to pick the Samsung Galaxy S25 Ultra
- Stronger performance score: 80 vs 47
- Stronger display score: 67 vs 54
- Stronger camera score: 74 vs 59
- Stronger features score: 95 vs 87
- 300% higher Main camera: 200 MP vs 50 MP
Display
| Spec | OPPO K15 | Samsung Galaxy S25 Ultra |
|---|---|---|
| Screen size | 6.59 ″ | 6.9 ″+5% |
| Panel type | AMOLED | Dynamic LTPO AMOLED 2X |
| Resolution | 2760x1256 | 1440x3120 |
| Pixel density | 460 ppi | 498 ppi+8% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,200 nits | 2,600 nits+117% |
| Screen-to-body | 88.9 % | 92.5 %+4% |
Performance
| Spec | OPPO K15 | Samsung Galaxy S25 Ultra |
|---|---|---|
| Chipset | Dimensity 7360 Super | Snapdragon 8 Elite for Galaxy |
| AnTuTu | — | 2,787,981Top 21% |
| AnTuTu 11 (CPU) | — | 895,141Top 11% |
| AnTuTu 11 (GPU) | — | 989,555Top 21% |
| AnTuTu 11 (Memory) | — | 348,188Top 27% |
| AnTuTu 11 (UX) | — | 555,097Top 27% |
| Geekbench 6 (single) | — | 3,030Top 13% |
| Geekbench 6 (multi) | — | 9,800Top 8% |
| RAM (max) | 12 GB | 16 GB+33% |
| Storage options | 256GB | 256/512GB/1TB |
| Storage type | UFS 3.1 | UFS 4.0 |
Camera
| Spec | OPPO K15 | Samsung Galaxy S25 Ultra |
|---|---|---|
| Main camera | 50 MP | 200 MP+300% |
| Main aperture | f/1.8 | f/1.7 |
| Ultra-wide | 50 MP | 50 MP |
| Telephoto | — | 50 MP |
| Optical zoom | — | 5 x |
| Max video | 4K@30fps | 8K@30fps |
| Front camera | 50 MP+317% | 12 MP |
| OIS | Yes | Yes |
Battery
| Spec | OPPO K15 | Samsung Galaxy S25 Ultra |
|---|---|---|
| Capacity | 8,000 mAh+60% | 5,000 mAh |
| Wired charging | 80 W+78% | 45 W |
| Wireless charging | — | 15 W |
| Active use endurance | — | 13 h |
Design
| Spec | OPPO K15 | Samsung Galaxy S25 Ultra |
|---|---|---|
| Weight | 205 g+6% | 218 g |
| Thickness | 8.3 mm | 8.2 mm+1% |
| IP rating | IP68/IP69 | IP68 |
| Frame material | Aluminum | Titanium |
Connectivity
| Spec | OPPO K15 | Samsung Galaxy S25 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 7 |
| Bluetooth | 5.4 | 5.4 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | OPPO K15 | Samsung Galaxy S25 Ultra |
|---|---|---|
| OS at launch | Android 16 (ColorOS 16) | Android 15 (One UI 7) |
| OS update pledge | — | 7 years |
Audio
| Spec | OPPO K15 | Samsung Galaxy S25 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
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