No. Vivo Y93 has a dedicated MicroSD card slot. You can use 2 sim cards and a memory card at the same time.
Vivo Y93 is made of industrial polycarbonate material.
Yes, Vivo Y93 is a dual 4G mobile phone. It is dual VoLTE also.
Vivo Y93 comes with 2A output power adapter, which is slightly faster than the normal chargers supplied with other mobile phones.