| Hardware and OS | Yezz Billy 4 | |
| Operating system | Microsoft Windows Phone 8.1 | |
| Processor | Quad-core 1.2 GHz Cortex-A7 | |
| Chipset | Qualcomm MSM8212 Snapdragon 200 (28 nm) | |
| GPU | Adreno 302 | |
| Internal memory | 4 GB, 512 MB RAM | |
| External memory | microSD, up to 256 GB | |
| Display | Yezz Billy 4 | other phones |
| Type | TFT | |
| Size | 4" inc | |
| Resolution | 480 x 800 px | |
| Touchscreen | capacitive touchscreen | |
| Screen-to-Body Ratio | 57.7% | |
| Display area | 45.5 cm2 | |
| Display aspect ratio | 5:3 (height:width) | |
| Pixel Density | 233 PPI | |
| Colors | 16M | |
| Connectivity | Yezz Billy 4 | other phones |
| 2G Network | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 | |
| Wi-Fi | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | |
| Network | GSM / HSPA | |
| SIM card | Dual SIM (Micro-SIM) | |
| Bluetooth | 4.0, A2DP | |
| Edge | Class 12 | |
| GPRS | Class 12 | |
| GPS | Yes, with A-GPS, GLONASS | |
| Speed | HSPA 42.2/5.76 Mbps | |
| USB | microUSB 2.0 | |
| Camera | Yezz Billy 4 | other phones |
| Main camera | 8 MP, Single | |
| Specs | 8 MP, AF | |
| Features | LED flash | |
| Video | 720p@30fps | |
| Selfie camera | 1.3 MP, Single | |
| Multimedia | Yezz Billy 4 | other phones |
| 3.5 mm Jack | Yes | |
| Radio | Stereo FM radio | |
| Design | Yezz Billy 4 | other phones |
| Colors | White, Black, Red, Gun Metal, Blue, Yellow, Champing Gold | |
| Dimensions | 122.5 x 64.4 x 9.9 mm | |
| Weight | 109 g | |
| Battery | Yezz Billy 4 | other phones |
| Battery capacity | 1300 mAh, Removable Li-Ion | |
| Battery life | Stand by time- Up to 350 h (2G) / Up to 300 h (3G)
Talking time- Up to 7 h (2G) / Up to 4 h 30 min (3G)
| |
| Other | Yezz Billy 4 | other phones |
| Release date | 2014, June | |
| Sensors | Accelerometer, proximity | |
