| Brand | Walton |
| Model | B31 |
| Device Type | FeaturePhone |
| Release Date | 01 August 2012 |
| Status | Available |
| Operating System | FeaturePhone |
| Display Type | TFT |
| Screen Size | 2.4 inches (6.1 cm) |
| Resolution | 240x320 px |
| Camera Setup | Single |
| Resolution | 2 MP, Primary Camera |
| Weight | 96.54 grams |
| Colors | Black |
| Battery type | Li-Ion (Lithium Ion) |
| Capacity | 1000 mAh |
| Placement | Removable |
| Standby | 210 - 240 Hours |
| Talk Time | 3.3 - 4.2 Hours |
| Expandable Memory | Up to 8 GB |
| Network | 2G |
| SIM Slot | Dual SIM |
| Bluetooth | v1.2 |
| USB | microUSB 2.0 |
| FM Radio | Yes |
| Loudspeaker | Yes |
| Alert Types | Vibration, MP3, Ringtones |
| Video | MP4 |
| Made By | Bangladesh |
| Features | Sound recording, Call conversion recording, Torchlight(Dual LED), SMS, MMS, Games, Blacklist, Organizer, Stockmarket, Facebook, MSN, Yahoomassanger, Waton Club, Walton service center list |
