OPPO A78 5G vs Samsung Galaxy S21 Ultra
23.2Performance37.2
35.2Display56.3
29Camera72
47.8Battery46.4
60Features78.7
4 spec wins — OPPO A78 5G12 spec wins — Samsung Galaxy S21 Ultra
InnoReviews verdict
Samsung Galaxy S21 Ultra wins this phone face-off, 53.9 to 35.4, pulling ahead mainly in camera (+43) and display (+21). OPPO A78 5G still makes sense if its price or standout specs fit your needs better.
Which would you pick?
Key differences
Reasons to pick the OPPO A78 5G
- 32% higher Wired charging: 33 W vs 25 W
- 18% lower weight: 188 g vs 228 g
- 10% lower thickness: 8 mm vs 8.9 mm
- Has 3.5mm jack — the other doesn't
- Lower launch price: $249 vs $1,199
Reasons to pick the Samsung Galaxy S21 Ultra
- Stronger performance score: 37 vs 23
- Stronger display score: 56 vs 35
- Stronger camera score: 72 vs 29
- Stronger features score: 79 vs 60
- 400% higher Front camera: 40 MP vs 8 MP
Display
| Spec | OPPO A78 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Screen size | 6.56 ″ | 6.8 ″+4% |
| Panel type | IPS LCD | LTPO AMOLED |
| Resolution | 1612x720 | 3200x1440 |
| Pixel density | 269 ppi | 515 ppi+91% |
| Refresh rate | 90 Hz | 120 Hz+33% |
| 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 | OPPO A78 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Chipset | MediaTek Dimensity 700 | Samsung Exynos 2100 |
| AnTuTu 10 | 360,000Top 88% | 783,817+118%Top 65% |
| Geekbench 6 (single) | 730Top 83% | 1,430+96%Top 52% |
| Geekbench 6 (multi) | 1,900Top 87% | 3,550+87%Top 56% |
| RAM (max) | 8 GB | 12 GB+50% |
| Storage options | 128GB | 128GB / 256GB / 512GB |
| Storage type | UFS 2.2 | UFS 3.1 |
Camera
| Spec | OPPO A78 5G | 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 | 1080p@30fps | 8K@24fps |
| Front camera | 8 MP | 40 MP+400% |
| OIS | No | Yes |
Battery
| Spec | OPPO A78 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Capacity | 5,000 mAh | 5,000 mAh |
| Wired charging | 33 W+32% | 25 W |
| Wireless charging | — | 15 W |
Design
| Spec | OPPO A78 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Weight | 188 g+18% | 228 g |
| Thickness | 8 mm+10% | 8.9 mm |
| IP rating | IP54 | IP68 |
| Frame material | Plastic | Aluminum |
Connectivity
| Spec | OPPO A78 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6E |
| Bluetooth | 5.3 | 5.2 |
| NFC | Yes | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | Yes |
Software
| Spec | OPPO A78 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| OS at launch | Android 13 (ColorOS 13) | Android 11 (One UI 3.1) |
| OS update pledge | 2 years | 4 years+100% |
Audio
| Spec | OPPO A78 5G | Samsung Galaxy S21 Ultra |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | Yes | No |
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