| Hardware and OS Samsung Galaxy M21 2021 |
| Operating system: | Android 11, One UI 3.1 Core |
| Processor: | Octa-core (4x2.3 GHz Cortex-A73, 4x1.7 GHz Cortex-A53) |
| GPU: | Mali-G72 MP3 |
| RAM: | 4 GB, 6 GB |
| Internal Storage: | 64 GB, 128 GB |
| Memory Card Slot: | microSDXC (dedicated slot) |
| User Interface: | Yes |
| Display Samsung Galaxy M21 2021 |
| Type: | Super AMOLED |
| Size: | 6.4 inches |
| Resolution: | 1080 x 2340 pixels |
| Colors: | 16M |
| Pixel Density: | 403 PPI |
| Touchscreen: | Capacitive touchscreen |
| Protection: | Corning Gorilla Glass 3 |
| Connectivity Samsung Galaxy M21 2021 |
| 4G Network: | LTE |
| 5G Network: | No |
| Wi-Fi: | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| GPS: | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| NFC: | No |
| USB: | USB Type-C 2.0 |
| Speed: | HSPA 42.2/5.76 Mbps, LTE-A |
| SIM: | Nano SIM |
| Dual SIM: | Dual SIM (Nano-SIM, dual stand-by) |
| Wireless Charging: | No |
| Camera Samsung Galaxy M21 2021 |
| Main camera: | 48 MP (wide), 8 MP (ultrawide), 5 MP (depth) |
| Features: | LED flash, panorama, HDR |
| Image: | 2160p |
| Selfie camera: | 20 MP (wide) |
| Multimedia Samsung Galaxy M21 2021 |
| Loudspeaker: | Yes |
| Handsfree: | Yes |
| Radio: | FM radio, RDS, recording |
| Video Playback: | Yes |
| Video Out: | Yes |
| Ring Tones: | Yes |
| 3.5 mm Jack: | Yes |
| Design Samsung Galaxy M21 2021 |
| Waterproof: | No |
| Battery Samsung Galaxy M21 2021 |
| Capacity: | Li-Po 6000 mAh, Fast charging 15W |
| Placement: | Non-removable |
| Other Samsung Galaxy M21 2021 |
| Sensors: | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass, |
