| Oppo A15s | Vivo Y21s | |
| Specifications | ||
| Brand | Oppo | Vivo |
| Model | - | - |
| Release Date | December 2020 | September 2021 |
| Operating System | ColorOS (Android 10) | Android 11 |
| Dimensions | ||
| Size | 164.0 x 75.4 x 7.9 mm 6.46 x 2.97 x 0.31 in |
164.3 x 76.1 x 8.0 mm 6.47 x 3.00 x 0.31 in |
| Weight | 177 g 6.24 oz |
182 g 6.42 oz |
| Screen | ||
| Size | 6.52 inches | 6.51 inches |
| Resolution | 720 x 1,600 pixels | 720 x 1,600 pixels |
| PPI | 269 | 270 |
| Features | - | - |
| Cameras | ||
| Rear | Triple camera 13 MP f/2.2 Wide 2 MP f/2.4 Macro 2 MP f/2.4 Depth |
Triple camera 50 MP f/1.8 Wide 2 MP f/2.4 Macro 2 MP f/2.4 Depth |
| Front | 8 MP f/2.0 Wide | 8 MP f/2.0 Wide |
| Storage | ||
| Memory | 4 GB | 4 GB 6 GB |
| Fixed | 64 GB 128 GB |
128 GB |
| Removable | microSDXC | microSDXC |
| Processor | ||
| Chip | MediaTek Helio P35 Octa-core processor 12 nm |
MediaTek Helio G80 Octa-core processor 12 nm |
| CPU | 4x 2.35 GHz Cortex-A53 4x 1.80 GHz Cortex-A53 |
2x 2.00 GHz Cortex-A75 6x 1.80 GHz Cortex-A55 |
| GPU | PowerVR GE8320 | Mali-G52 MC2 |
| Battery | ||
| Capacity | 4,230 mAh | 5,000 mAh |
| Features | - | Fast charging 18W |
| Removable | ||
| Connectivity | ||
| 5G | ||
| NFC | ||
| 3.5 mm Audio Jack | ||
| Micro USB | ||
| USB Type-C | ||
| Lightning | ||