| Hardware and OS Samsung Galaxy M21s |
| Operating system: | Android 10, One UI 2.5 |
| Processor: | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
| Chipset: | Exynos 9611 (10nm) |
| Internal memory: | 64GB 4GB RAM, 128GB 6GB RAM |
| External memory: | microSDXC (dedicated slot) |
| GPU: | Mali-G72 MP3 |
| Display Samsung Galaxy M21s |
| Size: | 6.4 inches, 100.5 cm2 |
| Resolution: | 1080 x 2340 pixels, 19.5:9 ratio |
| Type: | Super AMOLED, 420 nits (peak) |
| Protection: | Corning Gorilla Glass 3 |
| Main Camera Samsung Galaxy M21s |
| Camera: | 64 MP, f/1.8, 26mm (wide), 1/1.72", 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 |
| Video: | 4K@30fps, 1080p@30fps, gyro-EIS |
| Selfie camera Samsung Galaxy M21s |
| Camera: | 32 MP, f/2.0, 26mm (wide), 1/2.8", 0.8µm |
| Features: | HDR |
| Video: | 1080p@30fps |
| Connectivity Samsung Galaxy M21s |
| 2G Network: | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| 3G Network: | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 4G Network: | 1, 2, 3, 4, 5, 7, 8, 12, 13, 17, 20, 26, 28, 38, 40, 41, 66 |
| Bluetooth: | 5.0, A2DP, LE |
| GPS: | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| NFC: | No |
| Speed: | HSPA 42.2/5.76 Mbps, LTE-A |
| Technology: | GSM / HSPA / LTE |
| USB: | USB Type-C 2.0 |
| WLAN: | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Multimedia Samsung Galaxy M21s |
| 3.5 mm Jack: | Yes |
| Loudspeaker: | Yes |
| Radio: | FM radio |
| Battery Samsung Galaxy M21s |
| Type: | Li-Po 6000 mAh, non-removable |
| Charging: | Fast charging 15W |
| Design Samsung Galaxy M21s |
| Body build: | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| Colors: | Blue, Black |
| Dimensions: | 159.2 x 75.1 x 8.9 mm (6.27 x 2.96 x 0.35 in) |
| Weight: | 191 g (6.74 oz) |
| SIM: | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) |
| Features Samsung Galaxy M21s |
| Sensors: | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
