| Local Name | Galaxy A21s |
| Additional Information | Versions: SM-A217F/DS (International); SM-A217M/DS (USA); SM-A217F/DSN (Russia) |
| Technology | GSM / HSPA / LTE |
| 4G Bands | 1, 2, 3, 5, 7, 8, 20, 28, 38, 40, 41 |
| 3G Bands | HSDPA 850 / 900 / 1900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A |
| Announced | 2020, May 15 |
| Status | Available. Released 2020, June 02 |
| Dimensions | 163.7 x 75.3 x 8.9 mm (6.44 x 2.96 x 0.35 in) |
| Weight | 192 g (6.77 oz) |
| Build | Glass front, plastic frame, plastic back |
| SIM | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) |
| Display Type | Li-Po 5000 mAh, non-removable |
| Screen Size | 6.5 inches, 102.0 cm2 (~82.8% screen-to-body ratio) |
| Resolution | 720 x 1600 pixels, 20:9 ratio (~270 ppi density) |
| OS | Android 10, upgradable to Android 11, One UI 3.1 |
| Chipset | Exynos 850 (8nm) |
| CPU | Octa-core (4x2.0 GHz Cortex-A55 & 4x2.0 GHz Cortex-A55) |
| GPU | Mali-G52 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 32GB 2GB RAM, 32GB 3GB RAM, 32GB 4GB RAM, 64GB 3GB RAM, 64GB 4GB RAM, 64GB 6GB RAM, 128GB 3GB RAM, 128GB 4GB RAM, 128GB 6GB RAM | eMMC 5.1 |
| Camera Features | LED flash, panorama, HDR |
| Video | 1080p@30fps |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 a/b/g/n/ac, dual-band, Wi-Fi Direct, hotspot |
| Bluetooth | 5.0, A2DP, LE |
| GPS | Yes, with A-GPS, GLONASS, GALILEO, BDS |
| NFC | Yes (market/region dependent) |
| Radio | FM radio, RDS, recording |
| USB | USB Type-C 2.0 |
| Sensors | Fingerprint (rear-mounted), accelerometer, gyro, proximity, compass |
| Colors | Black, White, Blue, Red |
| SAR EU | 0.42 W/kg (head) 1.54 W/kg (body) |
