The Oppo A57 is better known as a Selfie type Smartphone. It has upgraded it’s processor, better RAM and has more internal storage. These are the following specifications of the Oppo A 57: The measurement in millimeters is 149.10 x 72.90 x 7.65. It’s weight is 147.00 grams. The Battery capacity is 2900mAh and it is non-removable. This smartphone comes in 2 kinds of colors: Rose Gold and Gold. The screen size in inches is 5.20 and it is a touchscreen. The resolution is 720x1280 pixels. The processor is a Qualcomm Snapdragon 435 1.4 GHz octa-core. It has 32GB of storage. It has a microSD card and the storage can be expanded to 256GB. The camera comes with a flash. The rear camera has 13-megapixels and the front camera is 16-megapixels. The Operating System is an Android 6.0 and the skin is ColorOS 3.0. For connectivity purposes it has the 802.11 b/g/ n WI-FI, GPS Bluetooth v 4.10, USB, headphones 3.5mm, FM, USB OTG and it comes with 2 SIMS. The OppoA 57 has the following sensors: compass and magnetometer, proximity sensor, acceloremeter, ambient light sensor, and gyroscope. This smartphone will cost $378
The Oppo A 57 has a full metal unibody built and it has a fingerprint scanner that is located on the front home button. The fingerprint scanner unlocks the phone quickly. It has a matte texture that gives you more grip on the phone. The Oppo A 57 comes with an HD resolution that is reasonably sharp. The images are vivid and the viewing angles are just right. This smartphone uses the Gorilla Glass 4. The Gorilla Glass 4 should protect your smartphone from shattering when it falls. There is a SIM Tray situated on the right side for the two nano-SIM cards and a microSD card that could be expanded up to 256GB. The Oppo A 57 is thin and light. In the box you can find a micro-USB cable, charger, earphones, case, screen guard, SIM ejector tool and some manuals. The Oppo A 57 operates on ColorOS 3.0 that is on the Anddroid 6.0 Marshmallow. The interface works just fine. You have a Custom App store from Oppo and O-Cloud for backup and gestures ( when you use it with one hand and turn the screen off ).
The Oppo A 57 works well with basic apps, social networking and email. I wouldn’t play games on this smartphone, although, light gaming is possible. If you are doing something that is rigorous with this phone, there is a tendency for the underneath to feel warm. You must at least leave 1.5GB of RAM so that everything will work out just right. Doing this will prevent hitches. The Oppo A 57 can tackle video files up to 1080p. The speaker on this phone is not loud. The camera on the front works well and you can get very good shots on selfies. You can take good shots on the rear camera during daylight. Video recording can only reach 1080p. This is good enough. For me 12 hours of runtime on the 2900mAh battery is alright. Just keep in mind that you are buying a “selfie smatphone.” For practical purposes, This is a good smartphone to acquire.