| Hardware and OS | BLU G51 | |
| Operating system | Android 11 (Go edition) | |
| Processor | Quad-core 2.0 GHz Cortex-A53 | |
| Chipset | Mediatek MT6761 Helio A22 (12 nm) | |
| Internal memory | 32GB 2GB RAM | |
| External memory | microSDXC | |
| GPU | PowerVR GE8320 | |
| Display | BLU G51 | other phones |
| Type | IPS LCD | |
| Size | 6.1" inc | |
| Resolution | 720 x 1520 px | |
| Display colors | 16M | |
| Screen area | 92.9 cm2 | |
| Screen format | 19:9 (height:width) | |
| Screen to body ratio | 81.4% | |
| PPI /points per inch/ | 276 PPI | |
| Touchscreen | capacitive touchscreen | |
| Connectivity | BLU G51 | other phones |
| Network | GSM / HSPA / LTE | |
| NFC | No | |
| Edge | Yes | |
| Bluetooth | 4.2, A2DP, LE | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, Wi-Fi Direct, hotspot | |
| USB | microUSB 2.0 | |
| Camera | BLU G51 | other phones |
| Rear camera, main | 8 MP, Dual | |
| Camera specs | 8 MP
-0.3 MP (depth) | |
| Functions | LED flash, HDR, panorama | |
| Video | 1080p@30fps | |
| Front camera, selfie | 8 MP, Single | |
| Multimedia | BLU G51 | other phones |
| Headphone jack | Yes | |
| Radio | FM radio | |
| Design | BLU G51 | other phones |
| Dimensions (HxWxD) | 155.3 x 73.5 x 9.5 mm | 6.11 x 2.89 x 0.37 in | |
| Weight | 166 g | 5.86 oz | |
| Colors | Black, Blue, Green, Silver, Gold | |
| Battery | BLU G51 | other phones |
| Battery | 3000 mAh, Li-Po | |
| Other features | BLU G51 | other phones |
| Sensors | Fingerprint (rear-mounted), accelerometer, proximity | |
