OPPO F31 5G vs Xiaomi 18 Fold
28.9Performance91.6
55.2Display67
30.7Camera71.9
79.8Battery76.6
52Features86.7
6 spec wins — OPPO F31 5G5 spec wins — Xiaomi 18 Fold
InnoReviews verdict
Xiaomi 18 Fold wins this phone face-off, 79.3 to 47, pulling ahead mainly in performance (+63) and camera (+41). OPPO F31 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 battery score: 80 vs 77
- 25% lower thickness: 8 mm vs 10.7 mm
- 19% higher Wired charging: 80 W vs 67 W
- 17% higher capacity: 7,000 mAh vs 6,000 mAh
- 16% lower weight: 185 g vs 219 g
Reasons to pick the Xiaomi 18 Fold
- Stronger performance score: 92 vs 29
- Stronger display score: 67 vs 55
- Stronger camera score: 72 vs 31
- Stronger features score: 87 vs 52
- 300% higher Main camera: 200 MP vs 50 MP
Display
| Spec | OPPO F31 5G | Xiaomi 18 Fold |
|---|---|---|
| Screen size | 6.57 ″ | 7.58 ″+15% |
| Panel type | AMOLED | Foldable LTPO AMOLED |
| Resolution | 2372x1080 | 2364x1672 |
| Pixel density | 397 ppi+4% | 382 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,400 nits | 4,000 nits+186% |
| Screen-to-body | 93 %+3% | 90.6 % |
Performance
| Spec | OPPO F31 5G | Xiaomi 18 Fold |
|---|---|---|
| Chipset | Dimensity 6300 | Xiaomi XRing O3 |
| AnTuTu | — | 4,811,636 |
| Geekbench 6 (single) | — | 3,448Top 7% |
| Geekbench 6 (multi) | — | 12,758Top 1% |
| RAM (max) | 8 GB | 16 GB+100% |
| Storage options | 128GB / 256GB | 256/512GB/1TB |
| Storage type | UFS 2.2 | UFS 4.1 |
Camera
| Spec | OPPO F31 5G | Xiaomi 18 Fold |
|---|---|---|
| Main camera | 50 MP | 200 MP+300% |
| Main aperture | f/1.8 | f/1.7 |
| Ultra-wide | — | 50 MP |
| Telephoto | — | 50 MP |
| Optical zoom | — | 3.5 x |
| Max video | 1080p@60fps | 8K@24fps |
| Front camera | 16 MP | 16 MP |
| OIS | — | Yes |
Battery
| Spec | OPPO F31 5G | Xiaomi 18 Fold |
|---|---|---|
| Capacity | 7,000 mAh+17% | 6,000 mAh |
| Wired charging | 80 W+19% | 67 W |
| Wireless charging | — | 50 W |
Design
| Spec | OPPO F31 5G | Xiaomi 18 Fold |
|---|---|---|
| Weight | 185 g+16% | 219 g |
| Thickness | 8 mm+25% | 10.7 mm |
| IP rating | IP66/IP68/IP69 | IP58/IP59 |
| Frame material | Aluminum | Aluminum |
Connectivity
| Spec | OPPO F31 5G | Xiaomi 18 Fold |
|---|---|---|
| 5G | Yes | Yes |
| Wi-Fi | Wi-Fi 5 | Wi-Fi 7 |
| Bluetooth | 5.4 | 6.0 |
| NFC | No | Yes |
| USB | USB-C 2.0 | USB-C 3.2 |
| eSIM | No | No |
Software
| Spec | OPPO F31 5G | Xiaomi 18 Fold |
|---|---|---|
| OS at launch | Android 15 (ColorOS 15) | Android 17 (HyperOS 4) |
| OS update pledge | 2 years | — |
Audio
| Spec | OPPO F31 5G | Xiaomi 18 Fold |
|---|---|---|
| Stereo speakers | Yes | Yes |
| 3.5mm jack | No | No |