| Hardware and OS Samsung Galaxy M21 |
| Operating system: | Android 10.0; One UI 2 |
| Processor: | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
| Chipset: | Exynos 9611 (10nm) |
| GPU: | Mali-G72 MP3 |
| Internal memory: | 64GB 4GB RAM, 128GB 6GB RAM |
| External memory: | microSDXC (dedicated slot) |
| Display Samsung Galaxy M21 |
| Type: | Super AMOLED |
| Size: | 6.4" inc |
| Resolution: | 1080 x 2340 px |
| Protection: | Corning Gorilla Glass 3 |
| Touchscreen: | capacitive touchscreen |
| Screen-to-Body Ratio: | 84.2% |
| Display area: | 100.5 cm2 |
| Display aspect ratio: | 19.5:9 (height:width) |
| Pixel Density: | 403 PPI |
| Colors: | 16M |
| Other: | 420 nits max brightness |
| Connectivity Samsung Galaxy M21 |
| 2G Network: | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G Network: | HSDPA 850 / 900 / 1900 / 2100 |
| 4G Network: | LTE band 1(2100), 3(1800), 5(850), 7(2600), 8(900), 20(800), 38(2600), 40(2300), 41(2500) |
| Wi-Fi: | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Network: | GSM / HSPA / LTE |
| SIM card: | Dual SIM (Nano-SIM, dual stand-by) |
| Bluetooth: | 5.0, A2DP, LE |
| Edge: | Yes |
| GPRS: | Yes |
| GPS: | Yes, with A-GPS, GLONASS, BDS |
| Speed: | HSPA, LTE-A |
| USB: | 2.0, Type-C 1.0 reversible connector |
| Camera Samsung Galaxy M21 |
| Main camera: | 48 MP,
Triple |
| Specs: | 48 MP, f/2.0, 26mm (wide), 1/2.0', 0.8µm, PDAF
-8 MP, f/2.2, 12mm (ultrawide), 1/4.0', 1.12µm
-5 MP, f/2.2, (depth) |
| Features: | LED flash, panorama, HDR |
| Features: | HDR |
| Video: | 2160p@30fps, 1080p@30fps, gyro-EIS |
| Selfie camera: | 20 MP,
Single |
| Specs: | 20 MP, f/2.0, 26mm (wide) |
| Video: | 1080p@30fps |
| Multimedia Samsung Galaxy M21 |
| 3.5 mm Jack: | Yes |
| Radio: | FM radio, RDS, recording |
| Design Samsung Galaxy M21 |
| Colors: | Midnight Blue, Raven Black |
| Body build: | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| Dimensions: | 159 x 75.1 x 8.9 mm |
| Weight: | 188 g |
| Battery Samsung Galaxy M21 |
| Battery capacity: | 6000 mAh, Non-removable Li-Po |
| Other Samsung Galaxy M21 |
| SAR: | SAR - 0.47 W/kg (head) |
| Release date: | 2020, March 18 |
| Sensors: | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
