The Vivo Y91 (Mediatek) was announced in 2019, January With 6.22 inches, 96.6 cm2 (~82.9% screen-to-body ratio) IPS LCD, Powered by Mediatek MT6762 Helio P22 (12 nm) and running Android 8.1 (Oreo), Funtouch 4.5, the device delivered smooth performance and multitasking capabilities. while the Li-Po 4030 mAh, non-removable ensured long-lasting usage.