Here is the comparison of features and specification of the mobile phones Yezz Classic C21A and Yezz Billy 4.
Yezz Classic C21A is manufactured by Yezz and this phone was announced in 2013, March. Yezz Classic C21A comes with with 1.8 inches and the resolution of the screen is 128 x 160 pixels.
This phone supports following network:
2G: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 - CM21A003
Dipsplay Type: The dispaly type of the Yezz Classic C21A is TFT with 256K colors.
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Yezz Billy 4 is manufactured by Yezz and this phone was announced in 2014, June. Yezz Billy 4 comes with with 4.0 inches and the resolution of the screen is 480 x 800 pixels.
This phone supports following network:
2G: GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2
3G: HSDPA 850 / 1900 - SIM 1 & SIM 2 - BM4MI043
Dipsplay Type: The dispaly type of the Yezz Billy 4 is TFT capacitive touchscreen with 16M colors.
| Specification Summary: Yezz Classic C21A vs Yezz Billy 4 | ||
| Mobile Device | Yezz Classic C21A | Yezz Billy 4 |
| Display | 1.8 inches | 4.0 inches |
| Resolution | 128 x 160 pixels | 480 x 800 pixels |
| Processor | Quad-core 1.2 GHz Cortex-A7 | |
| Primary Camera | 8 MP | |
| Front Camera | 1.3 MP | |
| Storage | 4 GB | |
| Battery | Li-Ion 1300 mAh | |
| Full Specification comparison of Yezz Classic C21A vs Yezz Billy 4 | ||
| Mobile Device | Yezz Classic C21A | Yezz Billy 4 |
Display |
||
| Screen Size | 1.8 inches (~21.4% screen-to-body ratio) | 4.0 inches (~57.7% screen-to-body ratio) |
| Screen Resolution | 128 x 160 pixels | 480 x 800 pixels |
| Pixel Density | 128 x 160 pixels (~114 ppi pixel density) | 480 x 800 pixels (~233 ppi pixel density) |
| Display Type | TFT with 256K colors | TFT capacitive touchscreen with 16M colors |
| Screen Protection | ||
Processor and RAM |
||
| Processor | Quad-core 1.2 GHz Cortex-A7 | |
| Interal Storage | 4 GB, 512 MB RAM | |
| External Storage | microSD, up to 128 GB | |
OS |
||
| OS Details | Microsoft Windows Phone 8.1 | |
Display |
||
| Display | 1.8 inches (~21.4% screen-to-body ratio) TFT, 256K colors 128 x 160 pixels (~114 ppi pixel density) |
4.0 inches (~57.7% screen-to-body ratio) TFT capacitive touchscreen, 16M colors 480 x 800 pixels (~233 ppi pixel density) |
| Display Type | TFT, 256K colors | TFT capacitive touchscreen, 16M colors |
Camera |
||
| Main Camera | 8 MP, 3264 x 2448 pixels, autofocus, LED flash | |
| Front Camera | 1.3 MP | |
| Camera Features | Geo-tagging, touch focus | |
Connectivity |
||
| GPRS | Up to 48 kbps | Class 12 |
| EDGE | No | Class 12 |
| 2G | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 - CM21A003 | GSM 850 / 900 / 1800 / 1900 - SIM 1 & SIM 2 |
| 3G | HSDPA 850 / 1900 - SIM 1 & SIM 2 - BM4MI043 | |
| 4G | ||
| Wi-Fi/connectivity | Wi-Fi 802.11 a/b/g/n, dual-band, hotspot | |
| Bluetooth | v4.0, A2DP | |
| GPS | Yes, with A-GPS, GLONASS | |
| USB | microUSB v2.0 | |
Multimedia |
||
| FM Radio | Stereo FM radio | |
| Loudspeaker | ||
| Audio Jack | Yes | |
Other Features |
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| Compass | ||
| Proximity Sensors | Yes | |
| Accelerometer | Yes | |
| Ambient Sensor | ||
| Gyroscope Sensor | ||
| Barometer Sensor | ||
| Temperature Sensor | ||
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