OPPO K13 Turbo vs Samsung Galaxy S21 Ultra
42.6Performance37.2
59.6Display56.3
30.7Camera72
79.8Battery46.4
60Features78.7
7 spec wins — OPPO K13 Turbo6 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
This one is close to a dead heat: OPPO K13 Turbo scores 52.8 against 53.9 for Samsung Galaxy S21 Ultra. Pick by the categories that matter to you — Samsung Galaxy S21 Ultra edges ahead in camera and features, or by price.
Which would you pick?
Key differences
Reasons to pick the OPPO K13 Turbo
- Stronger performance score: 43 vs 37
- Stronger display score: 60 vs 56
- Stronger battery score: 80 vs 46
- 220% higher Wired charging: 80 W vs 25 W
- 68% higher Geekbench 6 (multi): 5,975 vs 3,550
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger camera score: 72 vs 31
- Stronger features score: 79 vs 60
- 150% higher Front camera: 40 MP vs 16 MP
- 116% higher Main camera: 108 MP vs 50 MP
- 100% higher OS update pledge: 4 years vs 2 years
Display
| Spec | OPPO K13 Turbo | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.8 ″ | 6.8 ″ |
| Panel type | AMOLED | LTPO AMOLED |
| Resolution | 2800x1280 | 3200x1440 |
| Pixel density | 453 ppi | 515 ppi+14% |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,600 nits+7% | 1,500 nits |
| Screen-to-body | 93.5 % | — |
Performance
| Spec | OPPO K13 Turbo | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | MediaTek Dimensity 8450 | 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) | 1,424Top 47% | 1,430Top 46% |
| Geekbench 6 (multi) | 5,975+68%Top 32% | 3,550Bottom 50% |
| RAM (max) | 16 GB+33% | 12 GB |
| Storage options | 128GB / 256GB / 512GB | 128GB / 256GB / 512GB |
| Storage type | UFS 3.1 | UFS 3.1 |
Camera
| Spec | OPPO K13 Turbo | Samsung Galaxy S21 Ultra |
|---|---|---|
| Main camera | 50 MP | 108 MP+116% |
| Main aperture | f/1.8 | f/1.8 |
| Ultra-wide | — | 12 MP |
| Telephoto | — | 10 MP |
| Optical zoom | — | 10 x |
| Max video | 4K@60fps | 8K@24fps |
| Front camera | 16 MP | 40 MP+150% |
| OIS | No | Yes |
Battery
| Spec | OPPO K13 Turbo | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 7,000 mAh+40% | 5,000 mAh |
| Wired charging | 80 W+220% | 25 W |
| Wireless charging | — | 15 W |
Design
| Spec | OPPO K13 Turbo | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 207 g+9% | 228 g |
| Thickness | 8.3 mm+7% | 8.9 mm |
| IP rating | IPX6/IPX8/IPX9 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | OPPO K13 Turbo | Samsung Galaxy S21 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6 | Wi-Fi 6E |
| Bluetooth | 5.4 | 5.2 |
| NFC | Yes | Yes |
| USB | USB-C | USB-C 3.2 |
| eSIM | — | Yes |
Software
| Spec | OPPO K13 Turbo | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 15 (ColorOS 15) | Android 11 (One UI 3.1) |
| OS update pledge | 2 years | 4 years+100% |
Audio
| Spec | OPPO K13 Turbo | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |
Related comparisons
OPPO K13 Turbovs Samsung Galaxy S23VSOPPO K13 Turbovs TECNO CAMON 50 ProVSOPPO K13 Turbovs realme P2 Pro 5GVSOPPO K13 Turbovs Redmi Note 14SVSSamsung Galaxy S21 Ultravs realme P4 Power 5GVSSamsung Galaxy S21 Ultravs TECNO POVA Curve 2 5GVSSamsung Galaxy S21 Ultravs Motorola Edge 50 ProVSSamsung Galaxy S21 Ultravs iPhone 16eVS