| Hardware and OS | Samsung Galaxy Note 21 Plus 5G | |
| Operating System | Android v11 | |
| Processor | Octa core (2.91 GHz, Single core, Cortex X1 2.81 GHz, Tri core, Cortex A78 2.2 GHz, Quad core, Cortex A55) | |
| Chipset | Samsung Exynos 2100 | |
| Architecture | 64 bit | |
| Internal Memory | 256 GB | |
| External memory | No | |
| RAM | 12 GB | |
| GPU | Mali-G78 MP14 | |
| Display | Samsung Galaxy Note 21 Plus 5G | other phones |
| Type | Dynamic AMOLED | |
| Size | 6.8 inches (17.27 cm) | |
| Screen format | 20:9 | |
| PPI /points per inch/ | 516 ppi | |
| Touchscreen | Yes | |
| Refresh Rate | 120 Hz | |
| Connectivity | Samsung Galaxy Note 21 Plus 5G | other phones |
| 4G Bands | TD-LTE 2300(band 40), FD-LTE 1800(band 3) | |
| Network Support | 5G, 4G, 3G, 2G | |
| SIM card | SIM1: Nano, SIM2: Nano | |
| SIM Slot(s) | Dual SIM, GSM GSM | |
| Bluetooth | Yes, v5.2 | |
| GPS | Yes with A-GPS, Glonass | |
| USB Connectivity | Mass storage device, USB charging | |
| VoLTE | Yes | |
| Wi-Fi | Yes, Wi-Fi 802.11, b/g/n | |
| Camera | Samsung Galaxy Note 21 Plus 5G | other phones |
| Main camera | 108 MP f/1.8, Wide Angle, Primary Camera (26 mm focal length)10 MP f/4.9, Telephoto Camera, 10 MP , Telephoto Camera, | |
| Camera Setup | Triple | |
| Autofocus | Yes | |
| Camera Features | Digital Zoom, Auto Flash, Face detection, Touch to focus | |
| Flash | Yes, LED Flash | |
| Image Resolution | 12000 x 9000 Pixels | |
| Video Recording | 1920x1080 @ 30 fps | |
| Selfie camera | 40 MP f/2.2, Wide Angle, Primary Camera, | |
| Multimedia | Samsung Galaxy Note 21 Plus 5G | other phones |
| Headphone jack | USB Type-C | |
| Loudspeaker | Yes | |
| Battery | Samsung Galaxy Note 21 Plus 5G | other phones |
| Capacity | 5000 mAh | |
| Type | Li-Polymer | |
| Removable | No | |
| Quick Charging | Yes, Fast, 25W | |
| USB Type-C | Yes | |
| Other features | Samsung Galaxy Note 21 Plus 5G | other phones |
| Fingerprint Sensor | Yes | |
| Fingerprint Sensor Position | On-screen | |
| Fingerprint Sensor Type | Optical | |
| Other Sensors | Light sensor, Proximity sensor, Accelerometer, Compass, Gyroscope | |
