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- Y21 vs Y31d
Vivo Y21 vs Vivo Y31d
What Y21 does better (6) and where Y31d wins (6) — every spec side by side.
Dimensions
Size comparison
Y21Y31d
| Y21 | Y31d | Difference | |
|---|---|---|---|
| Height | 167.4 mm | 166.6 mm | +0.8 mm |
| Width | 77.1 mm | 78.4 mm | −1.3 mm |
| Thickness | 8.4 mm | 8.4 mm | = |
| Weight | 209 g | 219 g | −10 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Y21 better than Y31d?
- NFCYes · Y31d: No
- Memory card slotYes · Y31d: No
- 3.5 mm headphone jackYes · Y31d: No
- Weight209 g vs 219 g+5%
- Charged in 30 min42% vs 35%+20%
- Main camera aperturef/1.8 vs f/2+11%
Why is Y31d better than Y21?
- Battery capacity6,500 mAh vs 7,200 mAh+11%
- Water resistance (IPx)IPx5 vs IPx8+60%
- CPU frequency2.4 GHz vs 2.9 GHz+21%
- Peak brightness1,200 nits vs 1,250 nits+4%
- Selfie camera5 MP vs 8 MP+60%
- Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
Specifications
Side by side
| Design | ||
| Weight | 209 g | 219 g |
| Thickness | 8.4 mm | 8.4 mm |
| Height | 167.4 mm | 166.6 mm |
| Width | 77.1 mm | 78.4 mm |
| Frame | Plastic | Plastic |
| Back | Plastic | Plastic |
| Ingress protection | IP65 | IP68 |
| Water resistance (IPx) | IPx5 | IPx8 |
| Colours | Champagne Gold, Midnight Blue | Glow White, Starlight Grey |
| Display | ||
| Screen size | 6.7″ | 6.8″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,600 px | 1,570 px |
| Pixel density | 260 ppi | 256 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,200 nits | 1,250 nits |
| Screen-to-body ratio | 85% | 85.3% |
| Performance | ||
| Chipset | Mediatek Dimensity 6300 | Qualcomm SM6225-AF Snapdragon 6s 4G Gen 2 |
| Chip maker | MediaTek | Qualcomm |
| Process | 6 nm | 6 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.4 GHz | 2.9 GHz |
| GPU | Mali-G57 MC2 | Adreno |
| Memory | ||
| RAM | 8 GB | 8 GB |
| Storage (max) | 256 GB | 256 GB |
| Storage (base) | 128 GB | 128 GB |
| Storage type | eMMC 5.1 | UFS 2.2 |
| Memory card slot | Yes | No |
| Camera | ||
| Main camera | 50 MP | 50 MP |
| Main camera aperture | f/1.8 | f/2 |
| Rear cameras | 1 | 1 |
| Optical stabilisation | No | No |
| Ultra-wide camera | No | No |
| Telephoto camera | No | No |
| Max video | 1080p | 1080p |
| Selfie camera | 5 MP | 8 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 6,500 mAh | 7,200 mAh |
| Battery type | Li-Ion | Si/C |
| Wired charging | 44 W | 44 W |
| Charged in 30 min | 42% | 35% |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | Yes | — |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 5 |
| Bluetooth | — | 5.1 |
| NFC | Yes | 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 | Yes | No |
| Fingerprint sensor | Side | Side |
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Software | ||
| OS at launch | Android 16 | Android 16 |
| Platform | Android | Android |
| Interface | OriginOS 6 | OriginOS 6 |
| EU label | ||
| Energy class | A | — |
| Battery charge cycles | 1,600 | — |
| Endurance per cycle | 67 h | — |
| Repairability class | C | — |
| Drop resistance class | A | — |
