OPPO A78 5G vs vivo Y31d
23.2Performance28.9
35.2Display42.5
29Camera29
47.8Battery70.9
60Features46.7
6 spec wins — OPPO A78 5G4 spec wins — vivo Y31d
InnoReviews verdict
vivo Y31d wins this phone face-off, 41.8 to 35.4, pulling ahead mainly in battery (+23) and display (+7). 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
- Stronger features score: 60 vs 47
- 14% lower weight: 188 g vs 219 g
- Has 5G — the other doesn't
- Has NFC — the other doesn't
- Has 3.5mm jack — the other doesn't
Reasons to pick the vivo Y31d
- Stronger performance score: 29 vs 23
- Stronger display score: 43 vs 35
- Stronger battery score: 71 vs 48
- 44% higher capacity: 7,200 mAh vs 5,000 mAh
- 33% higher Refresh rate: 120 Hz vs 90 Hz
Display
| Spec | OPPO A78 5G | vivo Y31d |
|---|---|---|
| Screen size | 6.56 ″ | 6.75 ″+3% |
| Panel type | IPS LCD | IPS LCD |
| Resolution | 1612x720 | 720x1570 |
| Pixel density | 269 ppi+5% | 256 ppi |
| Refresh rate | 90 Hz | 120 Hz+33% |
| Peak brightness | — | 1,250 nits |
| Screen-to-body | — | 85.3 % |
Performance
| Spec | OPPO A78 5G | vivo Y31d |
|---|---|---|
| Chipset | MediaTek Dimensity 700 | Qualcomm Snapdragon 6s 4G Gen 2 |
| AnTuTu | 360,000 | — |
| Geekbench 6 (single) | 730Bottom 13% | — |
| Geekbench 6 (multi) | 1,900Bottom 12% | — |
| RAM (max) | 8 GB | 8 GB |
| Storage options | 128GB | 128/256GB |
| Storage type | UFS 2.2 | UFS 2.2 |
Camera
| Spec | OPPO A78 5G | vivo Y31d |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.8 | f/2.0 |
| Max video | 1080p@30fps | 1080p@30fps |
| Front camera | 8 MP | 8 MP |
| OIS | No | No |
Battery
| Spec | OPPO A78 5G | vivo Y31d |
|---|---|---|
| Capacity | 5,000 mAh | 7,200 mAh+44% |
| Wired charging | 33 W | 44 W+33% |
Design
| Spec | OPPO A78 5G | vivo Y31d |
|---|---|---|
| Weight | 188 g+14% | 219 g |
| Thickness | 8 mm+5% | 8.4 mm |
| IP rating | IP54 | IP68/IP69 |
| Frame material | Plastic | Plastic |
Connectivity
| Spec | OPPO A78 5G | vivo Y31d |
|---|---|---|
| 5G | Yes | No |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5.3 | 5.1 |
| NFC | Yes | No |
| USB | USB-C 2.0 | USB-C 2.0 |
| eSIM | No | No |
Software
| Spec | OPPO A78 5G | vivo Y31d |
|---|---|---|
| OS at launch | Android 13 (ColorOS 13) | Android 16 (OriginOS 6) |
| OS update pledge | 2 years | — |
Audio
| Spec | OPPO A78 5G | vivo Y31d |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | Yes | No |