Model Galaxy S21 | Built-in Memory 128 GB | RAM 8GB | Grey | 3G | LTE | 5G | OS Android 11.0 | Screen 6.2" | 1080 x 2400 | Dynamic AMOLED | CPU Octa-core (1x2.9 GHz Cortex-X1 & 3x2.80 GHz Cortex-A78 & 4x2.2 GHz Cortex-A55) | Dual SIM | 1xUSB