Actually sumsung z2 is a good phone in lowest price by a good 4g phone by a good company. But the software is built in that is TIZON is a waste os. it is good quality camera and good battery backup.
We cant use various applications by tizen store but that apps are really really bad.
We can use 4g jio sim in it because it already inbuilt my jio app. And it is absolutly a good voice volTEe voice calls we never here like thia quality like z2. According to my conclusion it is better to buy who want just whats app and facebook and common browser with high speed. Paisa vasool