It is phone from jio network. After huge success of jio sim mukesh ambani ( owner of rilance and jio) launch there first mibile which is called jio phone. Lyf company manufacturer this phones for jio. These phones has different model for verious use. These phones are 4g enabled VoLte supported. These phones belong kai os and it is updateable. This phone has a small screen a big battery life. In this phone there has all the jio apps and also have jio store. from jio store you can download some apps. But but but the phone is very slow and it is unable to use. And its network is very poor. And internet surffing is very frustrating. It is total weast of money. My personal opinion is not weast your money and please not buy these jio phones.