| Samsung Galaxy S21 |
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| Hardware and OS | Samsung Galaxy S21 | |
| Operating System | Android v10 (Q) | |
| Custom UI | Samsung One UI | |
| Processor | Octa core (2.73 GHz, Dual core, M5 Mongoose 2.5 GHz, Dual core, Cortex A76 2 GHz, Quad core, Cortex A55) | |
| Chipset | Samsung Exynos 9 Octa 990 | |
| Architecture | 64 bit | |
| RAM | 12 GB | |
| Internal Memory | 256 GB | |
| Expandable Memory | yes Up to 1 TB | |
| Graphics | Mali-G77 MP11 | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Display | Samsung Galaxy S21 | other phones |
| Screen Size | 6.2 inches (15.75 cm) | |
| Screen Resolution | 1440 x 3200 pixels | |
| Display Type | OLED | |
| Pixel Density | 566 ppi | |
| Screen Protection | Corning Gorilla Glass v6 | |
| Touch Screen | yes Capacitive Touchscreen, Multi-touch | |
| Main Camera | Samsung Galaxy S21 | other phones |
| Resolution | 16 MP Primary Camera 64 MP Telephoto Camera 12 MP, Wide Angle, Ultra-Wide Angle Camera | |
| Image Resolution | 4616 x 3464 Pixels | |
| Flash | yes LED Flash | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Autofocus | yes Phase Detection autofocus | |
| Optical Image Stabilisation | yes | |
| Shooting Modes | Continuos Shooting, High Dynamic Range mode (HDR) | |
| Settings | Exposure compensation, ISO control | |
| Front Camera | Samsung Galaxy S21 | other phones |
| Resolution | 12 MP Primary Camera | |
| Camera Type | Under display | |
| Connectivity | Samsung Galaxy S21 | other phones |
| Network | 4G: Available , 3G: Available, 2G: Available | |
| SIM Size | SIM1: Nano, SIM2: Nano (Hybrid) | |
| Bluetooth | yes v5.0 | |
| GPS | yes with A-GPS, Glonass | |
| NFC | yes | |
| 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 S21 | other phones |
| Audio Jack | 3.5 mm | |
| Loudspeaker | yes | |
| Design | Samsung Galaxy S21 | other phones |
| Height | 151.7 mm | |
| Width | 71.2 mm | |
| Thickness | 7.9 mm | |
| Ruggedness | Dust proof | |
| Waterproof | yes Water resistant, IP68 | |
| Battery | Samsung Galaxy S21 | other phones |
| Type | Li-ion | |
| Capacity | 3880 mAh | |
| User Replaceable | No | |
| Quick Charging | yes Fast | |
| USB Type-C | yes | |
| Wireless Charging | yes | |
| Features | Samsung Galaxy S21 | other phones |
| Fingerprint Sensor | yes | |
| Fingerprint Sensor Position | On-screen | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope |
