| Hardware and OS | BLU J2 | |
| Operating system | Android 8.1 Oreo (Go edition) | |
| Processor | Quad-core 1.3 GHz Cortex-A7 | |
| GPU | Mali-400 | |
| Internal memory | 32GB 1GB RAM | |
| External memory | microSDXC | |
| Display | BLU J2 | other phones |
| Type | IPS LCD | |
| Size | 5" inc | |
| Resolution | 480 x 854 px | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 65.4% | |
| Display area | 68.9 cm2 | |
| Display aspect ratio | 16:9 (height:width) | |
| Pixel Density | 196 PPI | |
| Colors | 16M | |
| Connectivity | BLU J2 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| Wi-Fi | Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot | |
| Network | GSM / HSPA | |
| SIM card | Dual SIM (Nano-SIM, dual stand-by) | |
| Bluetooth | 4.1, A2DP, LE | |
| Edge | Yes | |
| GPRS | Yes | |
| GPS | Yes, with A-GPS | |
| Speed | HSPA 21.1/5.76 Mbps | |
| USB | microUSB 2.0 | |
| Camera | BLU J2 | other phones |
| Main camera | 5 MP, Single | |
| Specs | 5 MP | |
| Features | LED flash | |
| Video | 720p@30fps | |
| Selfie camera | 5 MP, Single | |
| Multimedia | BLU J2 | other phones |
| 3.5 mm Jack | Yes | |
| Radio | FM radio | |
| Design | BLU J2 | other phones |
| Colors | Blue, Black, Brown | |
| Dimensions | 144 x 73.1 x 10.3 mm | |
| Weight | 146 g | |
| Battery | BLU J2 | other phones |
| Battery capacity | 2000 mAh, Li-Po | |
| Other | BLU J2 | other phones |
| Release date | 2019, December | |
| Sensors | Accelerometer | |
