| Oppo A15 | Xiaomi Poco X3 GT | |
| Specifications | ||
| Brand | Oppo | Xiaomi |
| Model | - | - |
| Release Date | October 2020 | July 2021 |
| Operating System | ColorOS (Android 10) | MIUI (Android 11) |
| Dimensions | ||
| Size | 164.0 x 75.4 x 7.9 mm 6.46 x 2.97 x 0.31 in |
163.3 x 75.9 x 8.9 mm 6.43 x 2.99 x 0.35 in |
| Weight | 175 g 6.17 oz |
193 g 6.81 oz |
| Screen | ||
| Size | 6.52 inches | 6.6 inches |
| Resolution | 720 x 1,600 pixels | 1,080 x 2,400 pixels |
| PPI | 269 | 399 |
| Features | - | 120Hz |
| Cameras | ||
| Rear | Triple camera 13 MP f/2.2 Wide 2 MP f/2.4 Macro 2 MP f/2.4 Depth |
Triple camera 64 MP f/1.8 Wide 8 MP f/2.2 Ultra Wide 2 MP f/2.4 Macro |
| Front | 5 MP f/2.4 Wide | 16 MP f/2.5 Wide |
| Storage | ||
| Memory | 2 GB 3 GB |
8 GB |
| Fixed | 32 GB | 128 GB 256 GB |
| Removable | microSDXC | - |
| Processor | ||
| Chip | MediaTek Helio P35 Octa-core processor 12 nm |
MediaTek Dimensity 1100 Octa-core processor 6 nm |
| CPU | 4x 2.35 GHz Cortex-A53 4x 1.80 GHz Cortex-A53 |
4x 2.60 GHz Cortex-A78 4x 2.00 GHz Cortex-A55 |
| GPU | PowerVR GE8320 | Mali-G77 MC9 |
| Battery | ||
| Capacity | 4,230 mAh | 5,000 mAh |
| Features | - | Fast charging 67W |
| Removable | ||
| Connectivity | ||
| 5G | ||
| NFC | ||
| 3.5 mm Audio Jack | ||
| Micro USB | ||
| USB Type-C | ||
| Lightning | ||