- android.gs
- Compare
- Armor X31 Pro vs Y400 4G
UleFone Armor X31 Pro vs Vivo Y400 4G
What Armor X31 Pro does better (7) and where Y400 4G wins (11) — every spec side by side.
vs
5.7Display8.4
6.1Camera4.6
7.2Battery8.2
7.6Features8.3
Dimensions
Size comparison
Armor X31 ProY400 4G
| Armor X31 Pro | Y400 4G | Difference | |
|---|---|---|---|
| Height | 173.8 mm | 162.3 mm | +11.5 mm |
| Width | 82 mm | 75.3 mm | +6.7 mm |
| Thickness | 13.7 mm | 7.9 mm | +5.8 mm |
| Weight | 306 g | 196 g | +110 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Armor X31 Pro better than Y400 4G?
- Main camera64 MP vs 50 MP+28%
- Storage (base)256 GB vs 128 GB2×
- Memory card slotYes · Y400 4G: No
- Rear cameras2 vs 12×
- Selfie camera16 MP vs 8 MP2×
- 3.5 mm headphone jackYes · Y400 4G: No
- Bluetooth5.2 vs 5+4%
Why is Y400 4G better than Armor X31 Pro?
- Wired charging18 W vs 44 W2.4×
- Peak brightness800 nits vs 1,800 nits2.2×
- OLED panelNo · Armor X31 Pro: Yes
- Stereo speakersNo · Armor X31 Pro: Yes
- Weight306 g vs 196 g+56%
- Pixel density269 ppi vs 395 ppi+47%
- CPU frequency2.4 GHz vs 2.8 GHz+17%
- Thickness13.7 mm vs 7.9 mm+73%
- Resolution (width)720 px vs 1,080 px+50%
- Screen-to-body ratio72.5% vs 87.9%+21%
- Main camera aperturef/1.9 vs f/1.8+6%
Specifications
Side by side
| Design | ||
| Weight | 306 g | 196 g |
| Thickness | 13.7 mm | 7.9 mm |
| Height | 173.8 mm | 162.3 mm |
| Width | 82 mm | 75.3 mm |
| Frame | — | Plastic |
| Back | — | Plastic |
| Ingress protection | IP68 | IP68 |
| Water resistance (IPx) | IPx8 | IPx8 |
| Glass protection | Corning Gorilla Glass 5 | — |
| Colours | Black, Black/Orange, Black/Green | Purple Twilight, Tropical Green (Dynamic Green), Pearl White |
| Display | ||
| Screen size | 6.6″ | 6.7″ |
| Panel | IPS LCD | AMOLED |
| OLED panel | No | Yes |
| Resolution (width) | 720 px | 1,080 px |
| Resolution (height) | 1,612 px | 2,400 px |
| Pixel density | 269 ppi | 395 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 800 nits | 1,800 nits |
| Screen-to-body ratio | 72.5% | 87.9% |
| Performance | ||
| Chipset | Mediatek Dimensity 6300 | Qualcomm SM6225 Snapdragon 685 |
| Chip maker | MediaTek | Qualcomm |
| Process | 6 nm | 6 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.4 GHz | 2.8 GHz |
| GPU | Mali-G57 MC2 | Adreno 610 |
| Memory | ||
| RAM | 8 GB | 8 GB |
| Storage (max) | 256 GB | 256 GB |
| Storage (base) | 256 GB | 128 GB |
| Storage type | — | UFS 2.2 |
| Memory card slot | Yes | No |
| Camera | ||
| Main camera | 64 MP | 50 MP |
| Main camera aperture | f/1.9 | f/1.8 |
| Main sensor size | — | 1/2.96" |
| Rear cameras | 2 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 16 MP | 8 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 6,050 mAh | 6,000 mAh |
| Battery type | Li-Po | Si/C |
| Wired charging | 18 W | 44 W |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | Yes | — |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5.2 | 5 |
| NFC | Yes | Yes |
| USB | USB Type-C 2.0 | USB Type-C 2.0 |
| USB version | 2 | 2 |
| Satellite navigation | GLONASS, GALILEO, BDS | GLONASS, GALILEO, BDS, QZSS |
| Features | ||
| Stereo speakers | No | Yes |
| 3.5 mm headphone jack | Yes | No |
| Fingerprint sensor | Side | Under display |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Software | ||
| OS at launch | Android 14 | Android 15 |
| Platform | Android | Android |
| Interface | — | Funtouch 15 |
| EU label | ||
| Energy class | A | — |
| Battery charge cycles | 1,000 | — |
| Endurance per cycle | 82 h | — |
| Repairability class | C | — |
| Drop resistance class | A | — |
