Jio is the 4G VoLTE network provider all over India. Vodafone is a 4G LTE provider in India. At Nalhati, Birbhum, West Bengal, India I was try to speedtest both best mobile operators. You can see the result below :
Jio speedtest : 17th August, 2017
Vodafone 4G speedtest : 17th August, 2017
If you are use the both sim then you can use high speed internet on your device. Vodafone 4G is recently launch here and provide high speed internet.
Jio speedtest : 17th August, 2017