OPPO K13 5G vs vivo Y31s 5G
32.9chipPerformance32.4
53.2Display45.7
30.7Camera34.1
79.8Battery66.2
52Features86.7
5 spec wins — OPPO K13 5G4 spec wins — vivo Y31s 5G
InnoReviews verdict
This one is close to a dead heat: OPPO K13 5G scores 47.8 against 47.6 for vivo Y31s 5G. Pick by the categories that matter to you — OPPO K13 5G edges ahead in battery and display, or by price.
Which would you pick?
Key differences
Reasons to pick the OPPO K13 5G
- Stronger display score: 53 vs 46
- Stronger battery score: 80 vs 66
- 82% higher Wired charging: 80 W vs 44 W
- 14% higher Peak brightness: 1,200 nits vs 1,050 nits
Reasons to pick the vivo Y31s 5G
- Stronger camera score: 34 vs 31
- Stronger features score: 87 vs 52
- 100% higher Front camera: 32 MP vs 16 MP
- Has NFC — the other doesn't
Display
| Spec | OPPO K13 5G | vivo Y31s 5G |
|---|---|---|
| Screen size | 6.67 ″ | 6.72 ″+1% |
| Panel type | AMOLED | IPS LCD |
| Resolution | 2400x1080 | 1080x2408 |
| Pixel density | 394 ppi | 393 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,200 nits+14% | 1,050 nits |
| Screen-to-body | 92.2 % | — |
Performance
| Spec | OPPO K13 5G | vivo Y31s 5G |
|---|---|---|
| Chipset | Snapdragon 6 Gen 4 | Qualcomm Snapdragon 4 Gen 2 |
| Geekbench 6 (single) | — | 924Bottom 25% |
| Geekbench 6 (multi) | — | 2,140Bottom 23% |
| RAM (max) | 8 GB | 8 GB |
| Storage options | 128GB / 256GB | 256GB |
| Storage type | UFS 3.1 | UFS 3.1 |
Camera
| Spec | OPPO K13 5G | vivo Y31s 5G |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.8 | f/1.8 |
| Max video | 4K@30fps | 1080p@60fps |
| Front camera | 16 MP | 32 MP+100% |
| OIS | No | No |
Battery
| Spec | OPPO K13 5G | vivo Y31s 5G |
|---|---|---|
| Capacity | 7,000 mAh+8% | 6,500 mAh |
| Wired charging | 80 W+82% | 44 W |
Design
| Spec | OPPO K13 5G | vivo Y31s 5G |
|---|---|---|
| Weight | 208 g | 209 g |
| Thickness | 8.5 mm | 8.4 mm+1% |
| IP rating | IP65 | IP68/IP69 |
| Frame material | Plastic | — |
Connectivity
| Spec | OPPO K13 5G | vivo Y31s 5G |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 6 | Dual-band Wi-Fi |
| Bluetooth | 5.2 | 5.1 |
| NFC | No | Yes |
| USB | USB-C | USB-C 2.0 |
| eSIM | No | No |
Software
| Spec | OPPO K13 5G | vivo Y31s 5G |
|---|---|---|
| OS at launch | Android 15 (ColorOS 15) | Android 16 (OriginOS 6) |
| OS update pledge | 2 years | — |
Audio
| Spec | OPPO K13 5G | vivo Y31s 5G |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | — |