In depth comparison and review of Yezz Billy 4 and Acer Liquid Z520. Compare sizes, cameras, batteries, memory, and other important specifications and features to easily choose the right phone for you. Our goal is to help you uncover differences between the products and find the phone that will best fit your needs.
| DESIGN AND DIMENSIONS | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| Product Type | Smartphone | Smartphone | |
|---|---|---|---|
| Form Factor | Touch | Touch | |
| Height | 122 mm | 143 mm | Acer Liquid Z520 has greater height than Yezz Billy 4. |
| Width | 64.5 mm | 73 mm | Acer Liquid Z520 has greater width than Yezz Billy 4. |
| Depth | 9.9 mm | 9.9 mm | Both phones are the same depth. |
| Weight | 120 g | 150 g | Yezz Billy 4 is lighter than Yezz Billy 4. |
| Body Colour | Black | White | Black | |
| Waterproof (Water-resistant) | - | - | |
| Integrated Components | FM radio | FM radio | |
| Connector Type | Headset jack - mini-phone 3.5mm Micro-USB - 5 pin Micro-USB Type B |
Micro-USB - 5 pin Micro-USB Type B Headset jack - mini-phone 3.5mm |
|
| SIM Card Type (Size) | Mini SIM | Micro SIM | |
| SIM Card Qty | Dual-SIM | Dual-SIM |
| DISPLAY | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| Display Type | - | LCD display | |
|---|---|---|---|
| Display Technology | - | TFT | |
| Screen Size (Display Size) | 4" | 5" | Acer Liquid Z520 has larger screen size than Yezz Billy 4. |
| Screen Resolution (Display Resolution) | 800 x 480 pixels | 480 x 854 pixels | Acer Liquid Z520 has better screen resolution than Yezz Billy 4. |
| PROCESSOR | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| Processor Type (CPU) | Qualcomm Snapdragon 200 | MediaTek | |
|---|---|---|---|
| Processor Number | - | MT6582M | |
| Clock Speed | 1.2 GHz | 1.3 GHz | Acer Liquid Z520 has higher clock speed than Yezz Billy 4. |
| Processor Core Qty | Quad-core | Quad-core | Both phones have the same number of phone cores. |
| Graphics System (GPU) | Qualcomm ADRENO 302 | - |
| MEMORY | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| RAM | 512 MB | 1 GB | Acer Liquid Z520 has more RAM than Yezz Billy 4. |
|---|---|---|---|
| Internal Memory Size (Storage Capacity) | 4 GB | 8 GB | Acer Liquid Z520 has more internal memory than Yezz Billy 4. |
| Supported Flash Memory Cards (Expandable Memory) | microSDHC, microSDXC - up to 128 GB | microSDHC - up to 32 GB |
| CAMERA | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| MAIN CAMERA |
|---|
| Number of Main Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution | 8 Megapixel | 8 Megapixel | Both phones have the same camera resolution. |
| Focus Adjustment | Automatic | Automatic | |
| Light Source | - | LED light |
| FRONT CAMERA |
|---|
| Number of Front Cameras | 1 | 1 | |
|---|---|---|---|
| Sensor Resolution (Front) | 1.3 Megapixel | 2 Megapixel | Acer Liquid Z520 has better front camera resolution than Yezz Billy 4. |
| Focus Adjustment | - | Focus free |
| BATTERY AND CHARGING | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| Battery Capacity (Battery Size) | 1300 mAh | 2000 mAh | Acer Liquid Z520 has larger battery capacity than Yezz Billy 4. |
|---|---|---|---|
| Standby Time | 350 hours | 200 hours | Yezz Billy 4 has longer standby time than Acer Liquid Z520. |
| Talk Time | 420 minutes | 180 minutes | Yezz Billy 4 has longer battery life when making calls than Acer Liquid Z520. |
| Run Time Details | Talk (GSM): up to 420 min Talk (WCDMA): up to 270 min Standby (GSM): up to 350 hrs Standby (WCDMA): up to 300 hrs |
Talk: up to 180 min Standby: up to 200 hrs |
|
| Battery Technology | Lithium Ion | Lithium polymer |
| CELLULAR | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| Technology | WCDMA (UMTS) / GSM | WCDMA (UMTS) / GSM | |
|---|---|---|---|
| Mobile Broadband Generation | 3G | 3G | Both phones have the same mobile network generation. |
| Operating System | Windows Phone OS 8.1 | Android 4.4 (KitKat) | |
| User Interface | - | Acer Liquid UI | |
| Navigation | A-GPS, GLONASS | GPS, A-GPS |
| COMMUNICATIONS | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| Data Transmission | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | GPRS, EDGE, HSDPA, HSUPA, HSPA+ | |
|---|---|---|---|
| 2G Band | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | 850 GSM, 900 GSM, 1800 GSM, 1900 GSM | |
| Wireless Interface | Wi-Fi | IEEE 802.11b/g/n | |
| Bluetooth | Bluetooth 4.0 | Bluetooth 4.0 | |
| Bluetooth Profiles | A2DP | - | |
| Communication Features | Mobile Email client, Internet browser | Mobile Email client, Internet browser | |
| Messaging Services | Google Talk, SMS, MMS | SMS, MMS |
| MEDIA | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| Supported Digital Audio Standards | WAV, MP3, AAC + | - | |
|---|---|---|---|
| Supported Digital Video Standards | MPEG-4, WMV, H.264 | - | |
| Sound Enhancements | - | DTS Sound support |
| FEATURES | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| Phone Functions | Speakerphone, call timer, conference call, flight mode, voice dialing, vibrating alert | Speakerphone, call timer, conference call, flight mode, vibrating alert | |
|---|---|---|---|
| Sensors | Accelerometer, proximity sensor | Accelerometer, ambient light sensor, proximity sensor, G-sensor | |
| Personal Information Management | - | Calendar, synchronization with PC, calculator, reminder, alarm clock | |
| Dual SIM Card Capability | Yes | Yes |
| OTHERS | Yezz Billy 4 | Acer Liquid Z520 |
|---|
| Included Accessories | Power adapter | Headset, power adapter |
|---|
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