Yes, iTel S41 is a VoLTE supported phone. You can enjoy Jio video calling easily.
Yes, iTel S41 does have VoLTE support.
Yes, iTel S41 does have the fingerprint sensor.
No. iTel S41 does not have a hybrid sim slot. It has 1 dedicated slot for MicroSD card and 2 dedicated sim card slots.
Yes, iTel S41 does have the eye protection mode which reduces strain for long reading.