General
- Brand BLU
- Model J4
- Device Smartphones
- Added March 6, 2020
- Updated May 29, 2024
Launch
- Announced 2019, October
- Status Available. Released 2019, October
Network
- Technology GSM / HSPA
- 2G bands GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
- 3G bands HSDPA 850 / 900 / 1900 / 2100
- Speed HSPA 21.1/5.76 Mbps
- GPRS Yes
- EDGE Yes
Body
- Dimensions 151 x 72.3 x 10 mm (5.94 x 2.85 x 0.39 in)
- Weight 158 g (5.57 oz)
- SIM Dual SIM (Nano-SIM, dual stand-by)
Display
- Type IPS LCD capacitive touchscreen, 16M colors
- Size 5.5 inches, 78.1 cm2 (~71.5% screen-to-body ratio)
- Resolution 720 x 1440 pixels, 18:9 ratio (~293 ppi density)
Platform
- OS Android 8.1 Oreo (Go edition)
- CPU Quad-core 1.3 GHz Cortex-A7
- GPU Mali-400
Memory
- Card slot microSDXC
- Internal 32 GB
- RAM 1 GB
Main camera
- Single 8 MP, AF
- Features LED flash
- Video 720p@30fps
Selfie camera
- Single 8 MP
Sound
- Alert types Vibration, MP3, WAV ringtones
- Loudspeaker Yes
- 3.5mm jack Yes
Connectivity
- WLAN Wi-Fi 802.11 b/g/n, Wi-Fi Direct, hotspot
- Bluetooth 4.1, A2DP, LE
- GPS Yes, with A-GPS
- NFC No
- FM radio Yes
- USB microUSB 2.0
Features
- Sensors Accelerometer
- Messaging SMS(threaded view), MMS, Email, IM
- Browser HTML5
- Java No
Battery
- Type Removable Li-Po
- Capacity 2200 mAh
More
- Made by US
- Color Blue, Black, Brown
Prices
- Expected price ৳7,000