| Samsung Galaxy A21 |
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| Hardware and OS | Samsung Galaxy A21 | |
| Operating System | Android v10 (Q) | |
| Processor | Octa core, 2.3 GHz | |
| Architecture | 64 bit | |
| RAM | 3 GB | |
| Internal Memory | 32 GB | |
| Expandable Memory | yes Up to 512 GB | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Display | Samsung Galaxy A21 | other phones |
| Screen Size | 6.5 inches (16.51 cm) | |
| Screen Resolution | 720 x 1600 pixels | |
| Display Type | Super AMOLED | |
| Pixel Density | 270 ppi | |
| Aspect Ratio | 20:9 | |
| Touch Screen | yes Capacitive Touchscreen, Multi-touch | |
| Main Camera | Samsung Galaxy A21 | other phones |
| Resolution | 16 MP Primary Camera 8 MP, Wide Angle, Ultra-Wide Angle Camera 2 MP, Macro Camera 2 MP, Depth Camera | |
| Image Resolution | 4616 x 3464 Pixels | |
| Flash | yes LED Flash | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Autofocus | yes | |
| Shooting Modes | Continuos Shooting, High Dynamic Range mode (HDR) | |
| Settings | Exposure compensation, ISO control | |
| Front Camera | Samsung Galaxy A21 | other phones |
| Resolution | 13 MP Primary Camera | |
| Connectivity | Samsung Galaxy A21 | other phones |
| Network | 4G: Available , 3G: Available, 2G: Available | |
| SIM Size | SIM1: Nano, SIM2: Nano | |
| Bluetooth | yes v5.0 | |
| GPS | yes with A-GPS, Glonass | |
| VoLTE | yes | |
| Wi-Fi | yes Wi-Fi 802.11, b/g/n | |
| Wi-Fi Features | Mobile Hotspot | |
| USB Connectivity | Mass storage device, USB charging | |
| Multimedia | Samsung Galaxy A21 | other phones |
| Audio Jack | 3.5 mm | |
| Loudspeaker | yes | |
| Design | Samsung Galaxy A21 | other phones |
| Build Material | Back: Plastic | |
| Colours | Black | |
| Battery | Samsung Galaxy A21 | other phones |
| Type | Li-ion | |
| Capacity | 4000 mAh | |
| User Replaceable | No | |
| Quick Charging | yes Fast, 15W | |
| USB Type-C | yes | |
| Features | Samsung Galaxy A21 | other phones |
| Fingerprint Sensor | yes | |
| Fingerprint Sensor Position | Rear | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer |
