| Secret codes BLU J2 | 
| Hard reset BLU J2 | 
| Root BLU J2 | 
| Unlock BLU J2 | 
| Firmware BLU J2 | 
| Developer Mode BLU J2 | 
| Bypass Lock Screen BLU J2 | 
| Remove a Google account BLU J2 | 
| BLU J2 Factory Reset | 
| Bypass FRP BLU J2 | 
| Screenshot BLU J2 | 
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 OS: Android 8.1 Oreo (Go edition) CPU: Quad-core 1.3 GHz Cortex-A7 Display: 5" inc Camera: 5 MP, 
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| 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 | |
| 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 | |
| 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 | |
| Main camera: | 5 MP, Single | 
| Specs: | 5 MP | 
| Features: | LED flash | 
| Video: | 720p@30fps | 
| Selfie camera: | 5 MP, Single | 
| Specs: | 5 MP | 
| Video: | 720p@30fps | 
| Multimedia BLU J2 | |
| 3.5 mm Jack: | Yes | 
| Radio: | FM radio | 
| Design BLU J2 | |
| Colors: | Blue, Black, Brown | 
| Dimensions: | 144 x 73.1 x 10.3 mm | 
| Weight: | 146 g | 
| Battery BLU J2 | |
| Battery capacity: | 2000 mAh, Li-Po | 
| Other BLU J2 | |
| Release date: | 2019, December | 
| Sensors: | Accelerometer | 
| Vik | March 15, 2023 | |
| How to reflash | ||
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| Kahibz | March 15, 2024 | |
| Feature phones have a simple operating system, decent processor, expandable storage, good battery life, and affordable price point. | ||
| Reply         | ||
| Qazuzyd | May 12, 2024 | |
| Limited functionality, outdated specs, low pixel density, slow processor, small battery. | ||
| Reply         | ||
| Kazjxp | May 10, 2024 | |
| Basic phone, suitable for simple tasks. | ||
| Reply         | ||