Vivo Y81i is made of Aluminum Alloy and industrial grade polycarbonate material.
Vivo Y81i has FunTouch OS which is based on Android 8.1.
No. Vivo Y81i does not come with the earphone in the box. You have to purchase it separately.
Vivo Y81i comes with 5V / 1A charger. It does not support the fast charging.
No. Vivo Y81i does not have the fingerprint scanner but it does support the face unlock.