Yes, Vivo Y95 does have the dual camera set-up at the rear side. It has a 13MP primary rear camera and 2MP secondary rear camera.
Vivo Y95 does have the scratch resistant display but the company has not mentioned if its Gorilla glass protection or not.
Yes, Vivo Y95 does support face unlock. It also has a fingerprint scanner.
Vivo Y95 has LPDDR3 type 4GB RAM. It's single-channel RAM.