| Hardware and OS | BLU G51 Plus | |
| Operating system | Android 11 | |
| Processor | Octa-core 1.6 GHz Cortex-A55 | |
| Internal memory | 64GB 3GB RAM | |
| External memory | microSDXC | |
| Display | BLU G51 Plus | other phones |
| Size | 6.5 inches, 102.0 cm2 | |
| Resolution | 720 x 1600 pixels, 20:9 ratio | |
| Type | IPS LCD | |
| Main Camera | BLU G51 Plus | other phones |
| Camera | 13 MP
0.3 MP (macro)
0.3 MP (depth) | |
| Features | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Selfie camera | BLU G51 Plus | other phones |
| Camera | 8 MP | |
| Video | 720p@30fps | |
| Connectivity | BLU G51 Plus | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| 3G Network | HSDPA 850 / 900 / 1700(AWS) / 1900 / 2100 | |
| 4G Network | 1, 2, 3, 4, 5, 7, 12, 17, 28 | |
| Bluetooth | 4.1, A2DP, LE | |
| GPS | Yes, with A-GPS | |
| NFC | No | |
| Speed | HSPA 42.2/5.76 Mbps, LTE | |
| Technology | GSM / HSPA / LTE | |
| USB | microUSB 2.0 | |
| WLAN | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | |
| Multimedia | BLU G51 Plus | other phones |
| 3.5 mm Jack | Yes | |
| Loudspeaker | Yes | |
| Radio | FM radio | |
| Battery | BLU G51 Plus | other phones |
| Type | Li-Po 4000 mAh, non-removable | |
| Design | BLU G51 Plus | other phones |
| Colors | Black, Blue, Red, Green | |
| Dimensions | 165 x 76.5 x 9.3 mm (6.50 x 3.01 x 0.37 in) | |
| Weight | 200 g (7.05 oz) | |
| SIM | Dual SIM (Nano-SIM, dual stand-by) | |
| Features | BLU G51 Plus | other phones |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | |
