Bharti Airtel has the best 4G network in terms of data speed and video streaming while Idea takes the lead in data upload speed. The UK-based firm found that Reliance Jio’s 4G services are available to users 97.8 per cent of the time while Airtel stood second with 89.2 per cent. Due to the availability of 4G services most of the time on Jio, Opensignal has found latency experience on its network better in overall score compared to other operators.