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- C21Y vs Y12a
Realme C21Y vs Vivo Y12a
What C21Y does better (3) and where Y12a wins (5) — every spec side by side.
Dimensions
Size comparison
C21YY12a
| C21Y | Y12a | Difference | |
|---|---|---|---|
| Height | 164.5 mm | 164.4 mm | +0.1 mm |
| Width | 76 mm | 76.3 mm | −0.3 mm |
| Thickness | 9.1 mm | 8.4 mm | +0.7 mm |
| Weight | 200 g | 191 g | +9 g |
Drawn to the same scale from the official dimensions (front and side).
Why is C21Y better than Y12a?
- Storage (max)64 GB vs 32 GB2×
- RAM4 GB vs 3 GB+33%
- Bluetooth5 vs 4.2+19%
Why is Y12a better than C21Y?
- CPU frequency1.8 GHz vs 1.95 GHz+8%
- Weight200 g vs 191 g+5%
- Selfie camera5 MP vs 8 MP+60%
- Wi-Fi standardWi-Fi 4 vs Wi-Fi 5+25%
- Thickness9.1 mm vs 8.4 mm+8%
Specifications
Side by side
| Design | ||
| Weight | 200 g | 191 g |
| Thickness | 9.1 mm | 8.4 mm |
| Height | 164.5 mm | 164.4 mm |
| Width | 76 mm | 76.3 mm |
| Frame | Plastic | Plastic |
| Back | Plastic | Plastic |
| Glass protection | Corning Gorilla Glass 3 | — |
| Colours | Cross Black, Cross Blue | Phantom Black, Glacier Blue |
| 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 | 400 nits | — |
| Screen-to-body ratio | 81.6% | 81.6% |
| Performance | ||
| Chipset | Unisoc T610 | Qualcomm SDM439 Snapdragon 439 |
| Chip maker | Unisoc | Qualcomm |
| Process | 12 nm | 12 nm |
| CPU cores | 8 | 8 |
| CPU frequency | 1.8 GHz | 1.95 GHz |
| GPU | Mali-G52 MP2 | Adreno 505 |
| Memory | ||
| RAM | 4 GB | 3 GB |
| Storage (max) | 64 GB | 32 GB |
| Storage (base) | 32 GB | 32 GB |
| Storage type | eMMC 5.1 | eMMC 5.1 |
| Memory card slot | Yes | Yes |
| Camera | ||
| Main camera | 13 MP | 13 MP |
| Main camera aperture | f/2.2 | f/2.2 |
| Main sensor size | 1/3.06" | — |
| 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 | 5,000 mAh | 5,000 mAh |
| Wired charging | — | 10 W |
| Wireless charging | No | No |
| Connectivity | ||
| 5G | No | No |
| eSIM | No | No |
| Dual SIM | Yes | Yes |
| Wi-Fi standard | Wi-Fi 4 | Wi-Fi 5 |
| Bluetooth | 5 | 4.2 |
| NFC | No | No |
| USB | microUSB 2.0 | microUSB 2.0 |
| Satellite navigation | GLONASS, BDS | GLONASS, GALILEO, BDS |
| Features | ||
| Stereo speakers | No | No |
| 3.5 mm headphone jack | Yes | Yes |
| Fingerprint sensor | Rear | Side |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity, compass | Fingerprint (side-mounted), accelerometer, proximity, compass |
| Software | ||
| OS at launch | Android 10/ Android 11 | Android 11 |
| Platform | Android | Android |
| Interface | realme UI | Funtouch 11 |
