Oppo A57 (5.2 inch + 3GB RAM)

Yes, the device supports 4G. The range coverage is pretty good as per 4G standards.

Yes, it supports voice on LTE. You can use this phone with Reliance Jio SIM. With Voice over LTE (VOLTE) technology, you can save on calls costs as the calls are done using data. Reliance Jio and other operators have started giving very attractive data pricing.

Yes, it is a Smartphone. It has the App store from where all the published Apps including, Facebook, WhatsApp can be downloaded. You need either data connection or WiFi.

Yes, it has finger print sensor with latest fast sensing technology.

Yes, the device is capable of Video Calling. Being a smartphone, all the video calling apps can be downloaded from App store and be used. All you need is a good data connection or a good Wi-Fi.

Yes, the mobile phone comes with flash feature built-in for the front camera. This is a very good feature as we do require to take Selfies at low lighting conditions at night.

Yes, being a smartphone, the advantage of this device is that it can be updated to latest OS. However, the latest OS to be used should be from the manufacturer only.

Yes, the phone is designed to be a water resistant phone. It can take light spills. However, full drenching in water will damage it.

Yes, it is designed to be dust resistance. Users are advised to keep the phone clean and away from dust to avoid damage to sensitive parts.