| Hardware and OS | Samsung Galaxy A51s | |
| Operating system | Android v10 (Q) | |
| Chipset | Qualcomm Snapdragon 765G | |
| Processor | Octa core (2.4 GHz, Single core, Kryo 475 2.2 GHz, Single core, Kryo 475 1.8 GHz, Hexa Core, Kryo 475) | |
| Graphics | Adreno 620 | |
| RAM | 6 GB | |
| Internal Storage | 128 GB | |
| Expandable memory | Yes Up to 512 GB | |
| Custom UI | Samsung One UI | |
| Display | Samsung Galaxy A51s | other phones |
| Type | Super AMOLED | |
| Size | 6.5 inches | |
| Resolution | 1080 x 2400 pixels | |
| Pixel Density | 405 ppi | |
| Touchscreen | Yes Capacitive Touchscreen, Multi-touch | |
| Connectivity | Samsung Galaxy A51s | other phones |
| Network support | 5G , 4G , 3G, 2G | |
| WI-FI | Yes Wi-Fi 802.11, b/g/n | |
| Gps | Yes with A-GPS | |
| Bluetooth | Yes v5.0 | |
| Dual SIM | Dual SIM, GSM GSM | |
| SIM size | SIM1: Nano, SIM2: Nano (Hybrid) | |
| USB TYPE-C | Yes | |
| USB connectivity | Mass storage device, USB charging | |
| Camera | Samsung Galaxy A51s | other phones |
| Main camera | 48 MP 12 MP 5 MP 5 MP | |
| Image | 8000 x 6000 Pixels | |
| Front camera | 32 MP | |
| Camera features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes LED Flash | |
| Autofocus | Yes | |
| Battery | Samsung Galaxy A51s | other phones |
| Capacity | 4500 mAh | |
| Type | Li-ion | |
| User replaceable | No | |
| Quick charging | Yes Fast | |
| Other | Samsung Galaxy A51s | other phones |
| Fingerprint sensor | Yes | |
| Fingerprint sensor position | On-screen | |
| Other sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope | |
