| Local Name | Galaxy A51 |
| Additional Information | Versions: SM-A515F/DSN (Global); SM-A515F/DS (LATAM); SM-A515F/DST (Brazil); SM-A515F/DSM (Russia); SM-A515F/N (Australia) |
| Technology | GSM / HSPA / LTE |
| 4G Bands | LTE band 1(2100), 2(1900), 3(1800), 4(1700/2100), 5(850), 7(2600), 8(900), 12(700), 13(700), 17(700), 20(800), 26(850), 28(700), 38(2600), 40(2300), 41(2500), 66(1700/2100) |
| 3G Bands | HSDPA 850 / 900 / 1900 / 2100 | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 (dual-SIM model only) |
| Speed | HSPA, LTE-A |
| Announced | 2019, December |
| Status | Available. Released 2019, December |
| Dimensions | 158.5 x 73.6 x 7.9 mm (6.24 x 2.90 x 0.31 in) |
| Weight | 172 g (6.07 oz) |
| Build | Glass front (Gorilla Glass 3), plastic back, plastic frame |
| SIM | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) |
| Display Type | Super AMOLED capacitive touchscreen, 16M colors |
| Screen Size | 6.5 inches, 102.0 cm2 (~87.4% screen-to-body ratio) |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~405 ppi density) |
| Protection | Corning Gorilla Glass 3 |
| OS | Android 10.0; One UI 2 |
| Chipset | Exynos 9611 (10nm) |
| CPU | Octa-core (4x2.3 GHz Cortex-A73 & 4x1.7 GHz Cortex-A53) |
| GPU | Mali-G72 MP3 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 64GB 4GB RAM, 128GB 4GB RAM, 128GB 6GB RAM | UFS 2.0 |
| Camera Features | 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 |
| Radio | FM radio |
| USB | 2.0, Type-C 1.0 reversible connector, USB On-The-Go |
| Sensors | Fingerprint (under display, optical), accelerometer, gyro, proximity, compass |
| Features Summary | ANT+ |
| Battery | Non-removable Li-Po 4000 mAh battery |
| Colors | Prism Crush Black, White, Blue, Pink |
| SAR EU | 0.37 W/kg (head) 1.59 W/kg (body) |
