Vivo V5s runs on Mediatek MT6750 Octa Core processor.
Yes, Vivo V5s has fingerprint sensor.
Yes, you can use Jio 4g sim card in this phone.
Vivo V5s comes with latest Android 6.0 Marshmallow OS which has got Vivo's patented FunTouch 3.0 skin layer. Since the device is newly launched, we do not expect that company will release the new software update immediately.