OPPO F31 5G vs OPPO K13x 5G
28.9Performance21.8
55.2Display45.2
30.7Camera29
79.8Battery61.9
52Features36
7 spec wins — OPPO F31 5G3 spec wins — OPPO K13x 5G
InnoReviews verdict
OPPO F31 5G wins this phone face-off, 47 to 37.3, pulling ahead mainly in battery (+18) and features (+16). OPPO K13x 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 F31 5G
- Stronger performance score: 29 vs 22
- Stronger display score: 55 vs 45
- Stronger battery score: 80 vs 62
- Stronger features score: 52 vs 36
- 100% higher Front camera: 16 MP vs 8 MP
Reasons to pick the OPPO K13x 5G
- Has 3.5mm jack — the other doesn't
Display
| Spec | OPPO F31 5G | OPPO K13x 5G |
|---|---|---|
| Screen size | 6.57 ″ | 6.67 ″+2% |
| Panel type | AMOLED | IPS LCD |
| Resolution | 2372x1080 | 1604x720 |
| Pixel density | 397 ppi+50% | 264 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,400 nits+40% | 1,000 nits |
| Screen-to-body | 93 %+3% | 89.9 % |
Performance
| Spec | OPPO F31 5G | OPPO K13x 5G |
|---|---|---|
| Chipset | Dimensity 6300 | MediaTek Dimensity 6300 |
| Geekbench 6 (single) | — | 785Bottom 19% |
| Geekbench 6 (multi) | — | 1,984Bottom 16% |
| RAM (max) | 8 GB | 8 GB |
| Storage options | 128GB / 256GB | 128GB |
| Storage type | UFS 2.2 | UFS 2.2 |
Camera
| Spec | OPPO F31 5G | OPPO K13x 5G |
|---|---|---|
| Main camera | 50 MP | 50 MP |
| Main aperture | f/1.8 | f/1.8 |
| Max video | 1080p@60fps | 1080p@60fps |
| Front camera | 16 MP+100% | 8 MP |
| OIS | — | No |
Battery
| Spec | OPPO F31 5G | OPPO K13x 5G |
|---|---|---|
| Capacity | 7,000 mAh+17% | 6,000 mAh |
| Wired charging | 80 W+78% | 45 W |
Design
| Spec | OPPO F31 5G | OPPO K13x 5G |
|---|---|---|
| Weight | 185 g+5% | 194 g |
| Thickness | 8 mm | 7.9 mm+1% |
| IP rating | IP66/IP68/IP69 | IP65 |
| Frame material | Aluminum | Plastic |
Connectivity
| Spec | OPPO F31 5G | OPPO K13x 5G |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5.4 | 5.4 |
| NFC | No | — |
| USB | USB-C 2.0 | USB-C |
| eSIM | No | — |
Software
| Spec | OPPO F31 5G | OPPO K13x 5G |
|---|---|---|
| OS at launch | Android 15 (ColorOS 15) | Android 15 (ColorOS 15) |
| OS update pledge | 2 years | 2 years |
Audio
| Spec | OPPO F31 5G | OPPO K13x 5G |
|---|---|---|
| Stereo speakers | Yes | — |
| 3.5mm jack | No | Yes |