| Samsung Galaxy A02 | Xiaomi Redmi Note 9 | |
| Specifications | ||
| Brand | Samsung | Xiaomi |
| Model | - | - |
| Release Date | January 2021 | April 2020 |
| Operating System | One UI (Android 10) | MIUI (Android 10) |
| Dimensions | ||
| Size | 164.0 x 75.9 x 9.1 mm 6.46 x 2.99 x 0.36 in |
162.3 x 77.2 x 8.9 mm 6.39 x 3.04 x 0.35 in |
| Weight | 206 g 7.27 oz |
199 g 7.02 oz |
| Screen | ||
| Size | 6.5 inches | 6.53 inches |
| Resolution | 720 x 1,600 pixels | 1,080 x 2,340 pixels |
| PPI | 270 | 395 |
| Features | - | - |
| Cameras | ||
| Rear | Dual camera 13 MP f/1.9 Wide 2 MP f/2.4 Macro |
Quad camera 48 MP f/1.8 Wide 8 MP f/2.2 Ultra Wide 2 MP f/2.4 Macro 2 MP f/2.4 Depth |
| Front | 5 MP f/2.0 | 13 MP f/2.3 Standard |
| Storage | ||
| Memory | 2 GB 3 GB 4 GB |
3 GB 4 GB 6 GB |
| Fixed | 32 GB 64 GB |
64 GB 128 GB |
| Removable | microSDXC | microSDXC |
| Processor | ||
| Chip | MediaTek MT6739 Quad-core processor 28 nm |
MediaTek Helio G85 Octa-core processor 12 nm |
| CPU | 4x 1.50 GHz Cortex-A53 | 2x 2.00 GHz Cortex-A75 6x 1.80 GHz Cortex-A55 |
| GPU | PowerVR GE8100 | Mali-G52 MC2 |
| Battery | ||
| Capacity | 5,000 mAh | 5,020 mAh |
| Features | - | Fast charging 18W |
| Removable | ||
| Connectivity | ||
| 5G | ||
| NFC | ||
| 3.5 mm Audio Jack | ||
| Micro USB | ||
| USB Type-C | ||
| Lightning | ||