| Local Name | Galaxy M51 |
| Technology | GSM / HSPA / LTE |
| 4G Bands | 1, 2, 3, 4, 5, 7, 8, 12, 17, 20, 26, 28, 38, 40, 41, 66 |
| 3G Bands | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA 42.2/5.76 Mbps, LTE-A (2CA) Cat6 400/50 Mbps |
| Announced | 2020, August 31 |
| Status | Available. Released 2020, September 11 |
| Dimensions | 163.9 x 76.3 x 9.5 mm (6.45 x 3.00 x 0.37 in) |
| Weight | 213 g (7.51 oz) |
| Build | Glass front (Gorilla Glass 3+), plastic back, plastic frame |
| SIM | Dual SIM (Nano-SIM, dual stand-by) |
| Display Type | Li-Po 7000 mAh, non-removable |
| Screen Size | 6.7 inches, 108.4 cm2 (~86.7% screen-to-body ratio) |
| Resolution | 1080 x 2400 pixels, 20:9 ratio (~393 ppi density) |
| Protection | Corning Gorilla Glass 3+ |
| OS | Android 10, upgradable to Android 12, One UI 4.1 |
| Chipset | Qualcomm SDM730 Snapdragon 730G (8 nm) |
| CPU | Octa-core (2x2.2 GHz Kryo 470 Gold & 6x1.8 GHz Kryo 470 Silver) |
| GPU | Adreno 618 |
| Card Slot | microSDXC (dedicated slot) |
| Internal Memory | 128GB 6GB RAM, 128GB 8GB RAM |
| Camera Features | HDR |
| Video | 4K@30fps, 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, RDS |
| USB | USB Type-C 2.0, USB On-The-Go |
| Sensors | Fingerprint (side-mounted), accelerometer, gyro, proximity, compass |
| Colors | Celestial Black, Electric Blue, White |
| SAR EU | 0.61 W/kg (head) 1.45 W/kg (body) |
