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- A55 vs Y21s
OPPO A55 vs Vivo Y21s
What A55 does better (2) and where Y21s wins (3) — every spec side by side.
Dimensions
Size comparison
A55Y21s
| A55 | Y21s | Difference | |
|---|---|---|---|
| Height | 163.6 mm | 164.3 mm | −0.7 mm |
| Width | 75.7 mm | 76.1 mm | −0.4 mm |
| Thickness | 8.4 mm | 8 mm | +0.4 mm |
| Weight | 193 g | 182 g | +11 g |
Drawn to the same scale from the official dimensions (front and side).
Why is A55 better than Y21s?
- Selfie camera16 MP vs 8 MP2×
- CPU frequency2.3 GHz vs 2 GHz+15%
Why is Y21s better than A55?
- Storage (base)64 GB vs 128 GB2×
- Weight193 g vs 182 g+6%
- Thickness8.4 mm vs 8 mm+5%
Specifications
Side by side
| Design | ||
| Weight | 193 g | 182 g |
| Thickness | 8.4 mm | 8 mm |
| Height | 163.6 mm | 164.3 mm |
| Width | 75.7 mm | 76.1 mm |
| Glass protection | NEG T2X-1 | — |
| Colours | Rainbow Blue, Starry Black, Green | Midnight Blue, Pearl White |
| Display | ||
| Screen size | 6.5″ | 6.5″ |
| 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 | 270 ppi | 270 ppi |
| Refresh rate | 60 Hz | 60 Hz |
| Peak brightness | 550 nits | — |
| Screen-to-body ratio | 82.6% | 81.8% |
| Performance | ||
| Chipset | Mediatek MT6765G Helio G35 | Mediatek MT6769V/CU Helio G80 |
| Chip maker | MediaTek | MediaTek |
| Process | 12 nm | 12 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 2.3 GHz | 2 GHz |
| GPU | PowerVR GE8320 | Mali-G52 MC2 |
| Memory | ||
| RAM | 6 GB | 6 GB |
| Storage (max) | 128 GB | 128 GB |
| Storage (base) | 64 GB | 128 GB |
| 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 | 16 MP | 8 MP |
| 4K selfie video | No | No |
| Battery | ||
| Battery capacity | 5,000 mAh | 5,000 mAh |
| Battery type | Li-Po | — |
| Wired charging | 18 W | 18 W |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | No |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 5 | Wi-Fi 5 |
| Bluetooth | 5 | 5 |
| NFC | Yes | Yes |
| 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 | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Side | Side |
| Sensors | Fingerprint (side-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, proximity, compass |
| SAR (head) | — | 0.83 W/kg |
| Software | ||
| OS at launch | Android 11 | Android 11 |
| Platform | Android | Android |
| Interface | ColorOS 11.1 | Funtouch 11.1 |
