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- Y51 (2020, September) vs Redmi Note 9 5G
Vivo Y51 (2020, September) vs Xiaomi Redmi Note 9 5G
What Y51 (2020, September) does better (6) and where Redmi Note 9 5G wins (8) — every spec side by side.
vs
6.0Display3.6
6.0Camera6.3
3.0Battery4.6
3.9Features6.2
Dimensions
Size comparison
Y51 (2020, September)Redmi Note 9 5G
| Y51 (2020, September) | Redmi Note 9 5G | Difference | |
|---|---|---|---|
| Height | 159.3 mm | 162 mm | −2.7 mm |
| Width | 75.2 mm | 77.3 mm | −2.1 mm |
| Thickness | 8.7 mm | 9.2 mm | −0.5 mm |
| Weight | 187 g | 199 g | −12 g |
Drawn to the same scale from the official dimensions (front and side).
Why is Y51 (2020, September) better than Redmi Note 9 5G?
- OLED panelYes · Redmi Note 9 5G: No
- Storage (base)128 GB vs 64 GB2×
- Weight187 g vs 199 g+7%
- Pixel density404 ppi vs 395 ppi+2%
- Selfie camera16 MP vs 13 MP+23%
- Thickness8.7 mm vs 9.2 mm+6%
Why is Redmi Note 9 5G better than Y51 (2020, September)?
- RAM4 GB vs 8 GB2×
- Storage (max)128 GB vs 256 GB2×
- Stereo speakersNo · Y51 (2020, September): Yes
- Battery capacity4,500 mAh vs 5,000 mAh+11%
- Max video1080p vs 4K
- CPU frequency2 GHz vs 2.4 GHz+20%
- Screen size6.4″ vs 6.5″+2%
- Process11 nm vs 7 nm+57%
Specifications
Side by side
| Design | ||
| Weight | 187 g | 199 g |
| Thickness | 8.7 mm | 9.2 mm |
| Height | 159.3 mm | 162 mm |
| Width | 75.2 mm | 77.3 mm |
| Back | — | Plastic |
| Glass protection | — | Corning Gorilla Glass 5 |
| Colours | Mystic Black, Jazzy Blue, Dreamy White | Gray, Green, Violet |
| Display | ||
| Screen size | 6.4″ | 6.5″ |
| Panel | Super AMOLED | IPS LCD |
| OLED panel | Yes | No |
| Resolution (width) | 1,080 px | 1,080 px |
| Resolution (height) | 2,340 px | 2,340 px |
| Pixel density | 404 ppi | 395 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Peak brightness | — | 450 nits |
| Screen-to-body ratio | 83.4% | 83.6% |
| Performance | ||
| Chipset | Qualcomm SDM665 Snapdragon 665 | Mediatek Dimensity 800U |
| Chip maker | Qualcomm | MediaTek |
| Process | 11 nm | 7 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2 GHz | 2.4 GHz |
| GPU | Adreno 610 | Mali-G57 MC3 |
| Memory | ||
| RAM | 4 GB | 8 GB |
| Storage (max) | 128 GB | 256 GB |
| Storage (base) | 128 GB | 64 GB |
| Storage type | — | UFS 2.2 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 48 MP | 48 MP |
| Main camera aperture | f/1.8 | f/1.8 |
| Main sensor size | 1/2.0" | 1/2.0" |
| Rear cameras | 2 | 2 |
| Optical stabilisation | No | No |
| Ultra-wide camera | Yes | Yes |
| Telephoto camera | No | No |
| Max video | 1080p | 4K |
| 4K video frame rate | — | 30 fps |
| Selfie camera | 16 MP | 13 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 4,500 mAh | 5,000 mAh |
| Battery type | — | Li-Po |
| Wired charging | 18 W | 18 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 | 5.1 |
| NFC | No | No |
| 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 | Yes |
| Fingerprint sensor | Under display | Side |
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Software | ||
| OS at launch | Android 10 | Android 10 |
| Platform | Android | Android |
| Interface | Funtouch 10 | MIUI 12 |
