Reliance Jio's 4G speeds skyrocketed during May-July period: OpenSignal In the last six months, Jio’s typical 4G download has ballooned from 3.9 Mbps to 5.8 Mbps — that’s almost a 50% increase in speed, OpenSignal said. ............................................................... NEW DELHI: 4G LTE speeds on Mukesh Ambani-led Reliance Jio 's network have "skyrocketed" in May-July period in India, following the telco’s move to charge users for bundled voice and data services, according to a study by OpenSignal . It added that the overall experience on its network has improved dramatically. After an uptick in February, Jio ’s speeds leveled out at around 4.2 Mbps between the test periods ending in March and April. But as soon as Jio’s free data offers concluded on April 1, OpenSignal said that it started recording a steady rise in average 4G speed till the end of July. In the last six months, Jio’s typical 4G d...