Jiofi is what anyone need if he does not have a 4g phone and want fast internet. Jiofi takes standerd jio sim and data plan and lets devices connect to it through wifi. It offers better signal reseption and speed. Battery backup last a day with ease for normal use. For 999 its the best wifi dongle you can get. Also it allows to make calls and sms through the jio app. Quality has been very good I have been using it for months now and theres not even any single defect. Overall a good device