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