Proton B4 Specifications
General
| Brand | Proton |
| Model | B4 |
| Device Type | Feature phone |
| Price in BD | BDT. 1,044 (Official) |
| Release Date | 10 April 2024 |
| Status | Available |
| Camera | Rear: 0.3MP |
| Display | 1.77 inches (4.5 cm) |
| Battery | 1000 mAh |
Display
| Display Type | QVGA |
| Screen Size | 1.77 inches (4.5 cm) |
| Resolution | 128x160 px |
Hardware & Software
Software
| Operating System | Feature Phone |
Memory
| Expandable Memory | Up to 16 GB |
Cameras
Main Camera
| Camera Setup | Single |
| Resolution | 0.3 MP Primary Camera |
Design & Build
| Colors | skey blue, green, Black |
Battery
| Battery type | Li-Ion (Lithium Ion) |
| Capacity | 1000 mAh |
| Placement | Removable |
Network
SIM 1
| Technology | 2G |
| SIM Size | Mini |
| SIM Slot | Dual SIM, GSM+GSM |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| GPRS | Available |
| EDGE | Available |
SIM 2
| Technology | 2G |
| SIM Size | Mini |
| SIM Slot | Dual SIM, GSM+GSM |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 |
| GPRS | Available |
| EDGE | Available |
Connectivity
| Bluetooth | v2.0 |
| USB | microUSB 2.0 |
Multimedia
| FM Radio | Yes |
| Loudspeaker | Yes |
| Video | MP3, MP4 , 3GP |
| Audio Jack | 3.5 mm |
Manufacturer
| First Arrival | 10 April 2024 |
| Manufactured By | Proton |
| Availability | Available |
| Made By | Bangladesh |