June 30th, 2017 
Ali Mohamed 
Oppo A57 has Android 6.0 (Marshmallow), It offers an internal memory of 32 GB with 3 GB RAM, It presents a screen of HD resolution, And it comes with a battery capacity of 2900 mAh .
Oppo A57 specifications
General
| Announce date | 2016, November |
| Release date | 2016, December |
| Status | Available |
| Height × Width | 149.1 mm x 72.9 mm (5.87 inches x 2.87 inches) |
| Thickness | 7.7 mm (0.30 inches) |
| Weight | 147 g (5.19 ounces) |
| Phone build | * Aluminum frame * Glass front (Gorilla Glass 4) * Aluminum back |
| SIM card | Single SIM (Nano-SIM) or Dual SIM (Nano-SIM, dual stand-by) |
| Colors | * Black * Gold * Rose Gold |
| Another name | Oppo F3 Lite in Vietnam |
Display
| Display type | IPS LCD capacitive touchscreen, 16M colors |
| Screen size | 5.2 inches (74.5 cm)2 (115.12 mm x 64.75 mm) |
| Screen-to-Body | 68.6% |
| Screen resolution | 720 x 1280 pixels [ HD resolution ] |
| Pixel density | ~282 ppi (pixels per inch) |
| Touchscreen type | Multi-touch screen |
| Screen protection | Corning Gorilla Glass 4 |
Main Camera
| Rear camera | 13 MP, f/2.2 |
| Camera features | * LED flash * Autofocus * Geo-tagging * Touch focus * Face detection * HDR * Panorama * Digital zoom * Phase detection autofocus |
| Rear video | 1080p@30fps [ Full HD video ] |
Selfie Camera
| Front camera | 16 MP (f/2.0, 1.0-micron) |
| Front video | 1080p@30fps |
Memory
| Memory card slot | Up to 256 GB |
| Card slot type | MicroSD |
| Internal memory | 32 GB |
| RAM | 3 GB RAM |
Battery
| Battery type | Lithium-ion (Li-Ion) |
| Battery model | Non-removable |
| Battery capacity | 2900 mAh |
Platform
| Operating System | Android 6 (Marshmallow) |
| Chipset | Qualcomm MSM8940 Snapdragon 435 (28 nanometers) |
| Processor | Octa-core 1.4 GHz |
| Graphics | Adreno 505 |
Sensors
| Fingerprint | yes (front-mounted) |
| Accelerometer | yes |
| Proximity | yes |
| Compass | yes |
| Gyroscope | yes |
| Ambient light | yes |
Networks & Connectivity
| 2G | GSM – SIM 1 & SIM 2 |
| 3G | HSDPA |
| 4G | * LTE * LTE – India (Band 40) |
| 3G Speed | HSPA |
| 4G Speed | LTE |
| GPRS | yes |
| EDGE | yes |
| Wireless LAN | * Wi-Fi 802.11 b/g/n * Wi-Fi hotspot |
| Bluetooth | v4.1 |
| Bluetooth Features | A2DP |
| USB | MicroUSB 2.0 USB On-The-Go |
| GPS | * GPS * A-GPS |
| Radio | FM radio |
Sound
| Types of alerts | * MP3 * Vibration * WAV ringtones |
| Loudspeaker | yes |
| Headphone jack | yes, 3.5mm jack |
Features
| Messages | * SMS (threaded view) * Push Email * MMS * IM |
| Music player | MP3/WAV/WMA/eAAC+/FLAC player |
| Video player | MP4/XviD/WMV player |
| Browser | HTML5 |
Other features
| – Document viewer – Photo/video editor – A dedicated microphone for active noise cancellation – ColorOS 3 |
Oppo A57 disadvantages
| Water/dust proof | No |
| Removable battery | No |
| Fast charging | No |
| NFC | No |
| Infrared port | No |
| Barometer | No |
| Temperature | No |
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