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- Y21 vs Poco M8x
Vivo Y21 vs Xiaomi Poco M8x
What Y21 does better (7) and where Poco M8x wins (5) — every spec side by side.
Dimensions
Size comparison
Y21Poco M8x
| Y21 | Poco M8x | Difference | |
|---|---|---|---|
| Height | 167.4 mm | 170.1 mm | −2.7 mm |
| Width | 77.1 mm | 78.4 mm | −1.3 mm |
| Thickness | 8.4 mm | 8.8 mm | −0.4 mm |
| Weight | 209 g | 232 g | −23 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Y21 better than Poco M8x?
- Storage (max)256 GB vs 128 GB2×
- NFCYes · Poco M8x: No
- RAM8 GB vs 6 GB+33%
- Water resistance (IPx)IPx5 vs IPx4+25%
- Weight209 g vs 232 g+11%
- Pixel density260 ppi vs 254 ppi+2%
- Thickness8.4 mm vs 8.8 mm+5%
Why is Poco M8x better than Y21?
- Battery capacity6,500 mAh vs 7,900 mAh+22%
- Wired charging44 W vs 45 W+2%
- Screen size6.7″ vs 6.9″+2%
- Selfie camera5 MP vs 8 MP+60%
- Process6 nm vs 4 nm+50%
Specifications
Side by side
| Design | ||
| Weight | 209 g | 232 g |
| Thickness | 8.4 mm | 8.8 mm |
| Height | 167.4 mm | 170.1 mm |
| Width | 77.1 mm | 78.4 mm |
| Frame | Plastic | Plastic |
| Back | Plastic | Plastic |
| Ingress protection | IP65 | IP64 |
| Water resistance (IPx) | IPx5 | IPx4 |
| Glass protection | — | Corning Gorilla Glass 7i |
| Colours | Champagne Gold, Midnight Blue | Leather Green, Black, Blue |
| Display | ||
| Screen size | 6.7″ | 6.9″ |
| Panel | IPS LCD | IPS LCD |
| OLED panel | No | No |
| Resolution (width) | 720 px | 720 px |
| Resolution (height) | 1,600 px | 1,600 px |
| Pixel density | 260 ppi | 254 ppi |
| Refresh rate | 120 Hz | 120 Hz |
| Peak brightness | 1,200 nits | — |
| Screen-to-body ratio | 85% | 86.2% |
| Performance | ||
| Chipset | Mediatek Dimensity 6300 | Qualcomm Snapdragon 4 Gen 5 |
| Chip maker | MediaTek | Qualcomm |
| Process | 6 nm | 4 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.4 GHz | 2.4 GHz |
| GPU | Mali-G57 MC2 | Adreno 613 |
| AnTuTu score | — | 624,021 |
| Geekbench 6 (multi-core) | — | 2,230 |
| Memory | ||
| RAM | 8 GB | 6 GB |
| Storage (max) | 256 GB | 128 GB |
| Storage (base) | 128 GB | 128 GB |
| Storage type | eMMC 5.1 | UFS 2.2 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 50 MP | 50 MP |
| Main camera aperture | f/1.8 | f/1.8 |
| 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 | 7,900 mAh |
| Battery type | Li-Ion | Si/C |
| Wired charging | 44 W | 45 W |
| Charged in 30 min | 42% | — |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | Yes | Yes |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 4 |
| 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 |
| Features | ||
| Stereo speakers | Yes | Yes |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Side | Side |
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, proximity, compass |
| Software | ||
| OS at launch | Android 16 | Android 16 |
| Platform | Android | Android |
| Interface | OriginOS 6 | HyperOS 3 |
| Major OS updates promised | — | 4 |
| EU label | ||
| Energy class | A | — |
| Battery charge cycles | 1,600 | — |
| Endurance per cycle | 67 h | — |
| Repairability class | C | — |
| Drop resistance class | A | — |
