Vivo Y91 - Starry Black is a Dual SIM smartphone with 19:9 ratio with capacitive touch screen. It is 6.22 inches in screen size with 720 x 1520 pixels and runs on Android 8.1 Oreo operating system. Selfie camera is 8MP while main camera is dual 13 MP + 2 MP camera. The Y91 is powered by octa core Qualcomm Snapdragon 439, 2 GHz and it features 3GB RAM and 32GB internal memory with dedicated microSD card slot expadable up to 256GB. Battery has 4030 mAh. Virtual Gyroscope and Face unlock are available.