| Samsung Galaxy M20 | Samsung Galaxy A40 | |
| Specifications | ||
| Brand | Samsung | Samsung | 
| Model | - | - | 
| Release Date | February 2019 | April 2019 | 
| Operating System | Experience UI (Android 8.1) | One UI (Android 9.0) | 
| Dimensions | ||
| Size | 156.4 x 74.5 x 8.8 mm 6.16 x 2.93 x 0.35 in | 144.4 x 69.2 x 7.9 mm 5.69 x 2.72 x 0.31 in | 
| Weight | 186 g 6.56 oz | 140 g 4.94 oz | 
| Screen | ||
| Size | 6.3 inches | 5.9 inches | 
| Resolution | 1,080 x 2,340 pixels | 1,080 x 2,340 pixels | 
| PPI | 409 | 437 | 
| Features | - | OLED | 
| Cameras | ||
| Rear | Dual camera 13 MP f/1.9 Wide 5 MP f/2.2 Ultra Wide | Dual camera 16 MP f/1.7 Wide 5 MP f/2.2 Ultra Wide | 
| Front | 8 MP f/2.0 Wide | 25 MP f/2.0 Wide | 
| Storage | ||
| Memory | 3 GB 4 GB | 4 GB | 
| Fixed | 32 GB 64 GB | 64 GB 128 GB | 
| Removable | microSDXC | microSDXC | 
| Processor | ||
| Chip | Samsung Exynos 7904 Octa-core processor 14 nm | Samsung Exynos 7904 Octa-core processor 14 nm | 
| CPU | 2x 1.80 GHz Cortex-A73 6x 1.60 GHz Cortex-A53 | 2x 1.80 GHz Cortex-A73 6x 1.60 GHz Cortex-A53 | 
| GPU | Mali-G71 MP2 | Mali-G71 MP2 | 
| Battery | ||
| Capacity | 5,000 mAh | 3,100 mAh | 
| Features | Fast charging 15W | Fast charging 15W | 
| Removable | ||
| Connectivity | ||
| 5G | ||
| NFC | ||
| 3.5 mm Audio Jack | ||
| Micro USB | ||
| USB Type-C | ||
| Lightning | ||