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- F31 vs Y400
OPPO F31 vs Vivo Y400
What F31 does better (4) and where Y400 wins (4) — every spec side by side.
Dimensions
Size comparison
F31Y400
| F31 | Y400 | Difference | |
|---|---|---|---|
| Height | 158.2 mm | 162.3 mm | −4.1 mm |
| Width | 75 mm | 75.3 mm | −0.3 mm |
| Thickness | 8 mm | 7.9 mm | +0.1 mm |
| Weight | 185 g | 197 g | −12 g |
Drawn to the same scale from the official dimensions (front and side).
Why is F31 better than Y400?
- Battery capacity7,000 mAh vs 6,000 mAh+17%
- CPU frequency2.4 GHz vs 2.2 GHz+9%
- Weight185 g vs 197 g+6%
- Bluetooth5.4 vs 5+8%
Why is Y400 better than F31?
- Wired charging80 W vs 90 W+12%
- Peak brightness1,400 nits vs 1,800 nits+29%
- Selfie camera16 MP vs 32 MP2×
- Process6 nm vs 4 nm+50%
Specifications
Side by side
| Design | ||
| Weight | 185 g | 197 g |
| Thickness | 8 mm | 7.9 mm |
| Height | 158.2 mm | 162.3 mm |
| Width | 75 mm | 75.3 mm |
| Frame | — | Plastic |
| Back | — | Plastic |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Glass protection | AGC DT-Star D+ | — |
| Colours | Midnight Blue, Bloom Red, Cloud Green | Glam White, Olive Green |
| Display | ||
| Screen size | 6.6″ | 6.7″ |
| Panel | AMOLED | AMOLED |
| OLED panel | Yes | Yes |
| Resolution (width) | 1,080 px | 1,080 px |
| Resolution (height) | 2,372 px | 2,400 px |
| Pixel density | 397 ppi | 395 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,400 nits | 1,800 nits |
| Screen-to-body ratio | 88.5% | 87.9% |
| Performance | ||
| Chipset | Mediatek Dimensity 6300 | Qualcomm SM4450 Snapdragon 4 Gen 2 |
| Chip maker | MediaTek | Qualcomm |
| Process | 6 nm | 4 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.4 GHz | 2.2 GHz |
| GPU | Mali-G57 MC2 | Adreno 613 |
| Memory | ||
| RAM | 8 GB | 8 GB |
| Storage (max) | 256 GB | 256 GB |
| Storage (base) | 128 GB | 128 GB |
| Storage type | UFS 2.2 | UFS 3.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 50 MP | 50 MP |
| Main camera aperture | f/1.8 | f/1.8 |
| Main sensor size | — | 1/2.96" |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 16 MP | 32 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 7,000 mAh | 6,000 mAh |
| Battery type | Si/C | Li-Ion |
| Wired charging | 80 W | 90 W |
| Charged in 30 min | — | 75% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | Yes | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5.4 | 5 |
| NFC | No | No |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Satellite navigation | GLONASS, GALILEO, BDS, QZSS | GLONASS, GALILEO, BDS, QZSS |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | No | No |
| Fingerprint sensor | Under display | Under display |
| Sensors | Fingerprint (under display, optical), accelerometer, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| SAR (head) | 1.18 W/kg | 0.99 W/kg |
| Software | ||
| OS at launch | Android 15 | Android 15 |
| Platform | Android | Android |
| Interface | ColorOS 15 | Funtouch 15 |
