The Galaxy A21 (2020) pairs a 6.5" PLS LCD display with a MediaTek Helio P35 chipset and 4G connectivity. As an entry-level model, its plastic body keeps back-cover replacement cheaper than glass-backed Galaxy phones, while screen replacement is the most common repair. Also sold in some markets as the Galaxy A21 (Japan carrier variant).
| Display | 6.5" PLS LCD |
| Chipset | MediaTek Helio P35 |
| Network | 4G |
| Battery | 4,000 mAh |
| Build | Plastic back, plastic frame |