My all 3 Jio numbers received invite for 5G. But our excitement of 5G was over very soon. The battery consumption is RAPID. I had to literally toggle to LTE, battery went from 50 to 10% within 1 hour. IPhone mostly latching to band 28 while Samsung 21 FE to 78 at same place. Not sure, Samsung have better battery than iPhone while connected to 5G.