Hello friends some days ago I am book a jio phone at rs 500 and give delivery of this phone at my place in december around 9 dec when I am recevie this phone the delivery boy tell me that jio sim buying is compulsory with this phone and he is sale me our jio sim at 180 but I have allready a jio sim and I am tell delivery man but he tell me that iff you want phone then purchase sim so I am purchase sim so totally cost of phone around rs 1700 after that I am use this phone but in this phone hotspot is abesent and this phone have our special operating system this is not android but in this phone some apps allready install as like jio money , jio cinema , jio music , etc after some time this phone have a update and some other apps are install in this phone I want to say that this phone is not android but some apps run in this phone those make for this phone specially in this phone whatsap not working , hike not working for chat in this phone jio chat work properly sound of this phone is very loud but weight of this phone is enough this is a keypad phone with plastic body and removeable battry and small screen I think 2.5 inch screen and in this phone only jio sim is work and this is single sim 4g phone and support sd card also this phone is good for first time phone user whose want only calling 4g phone for this phone jio lunch some special recahrge like in this time at rs 50 free calling and 1gb per day data for 28 days but this pack not working if you change your sim in another phone so you use this data only on jio apps or online music this phone have wifi also but not hotspot I am totally dislike this beacuse I want some another apps use or lite weight phone