| Local Name | Billy 4 |
| Technology | GSM / HSPA |
| 3G Bands | HSDPA 850 / 1900 - SIM 1 & SIM 2 - BM4MI043 | HSDPA 900 / 2100 - SIM 1 & SIM 2 - B4MI047 |
| 2G Bands | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| Speed | HSPA 42.2/5.76 Mbps |
| GPRS | Class 12 |
| EDGE | Class 12 |
| Announced | 2014, June |
| Status | Available. Released 2014, October |
| Dimensions | 122.5 x 64.4 x 9.9 mm (4.82 x 2.54 x 0.39 in) |
| Weight | 109 g (3.84 oz) |
| SIM | Dual SIM (Micro-SIM) |
| Display Type | TFT capacitive touchscreen, 16M colors |
| Screen Size | 4.0 inches, 45.5 cm2 (~57.7% screen-to-body ratio) |
| Resolution | 480 x 800 pixels, 5:3 ratio (~233 ppi density) |
| Mulitouch | Yes |
| OS | Microsoft Windows Phone 8.1 |
| Chipset | Qualcomm MSM8212 Snapdragon 200 (28 nm) |
| CPU | Quad-core 1.2 GHz Cortex-A7 |
| GPU | Adreno 302 |
| Card Slot | microSD, up to 256 GB |
| Internal Memory | 4 GB, 512 MB RAM |
| Camera Features | LED flash |
| Alert Types | Vibration; MP3, WAV ringtones |
| Loudspeaker | Yes |
| 3.5mm Jack | Yes |
| WLAN | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot |
| Bluetooth | 4.0, A2DP |
| GPS | Yes, with A-GPS, GLONASS |
| Radio | Stereo FM radio |
| USB | microUSB 2.0 |
| Sensors | Accelerometer, proximity |
| Messaging | SMS(threaded view), MMS, Email, Push Email, IM |
| Browser | HTML5 |
| Features Summary | OneDrive (15 GB cloud storage), MP4/WMV/H.264 player, MP3/WAV/eAAC+ player, Image/video editor, Document editor |
| Battery | Removable Li-Ion 1300 mAh battery |
| Stand By | Up to 350 h (2G) / Up to 300 h (3G) |
| Talk Time | Up to 7 h (2G) / Up to 4 h 30 min (3G) |
| Colors | White, Black, Red, Gun Metal, Blue, Yellow, Champing Gold |
