Performance
Running on Android 8.1 (Oreo) layered with Funtouch OS 4.5, the vivo Y91i provides a user-friendly interface, though it might feel outdated when compared to newer Android versions. Powered by the MediaTek MT6762 Helio P22 chipset with an octa-core Cortex-A53 processor clocked at 2.0 GHz, it offers satisfactory performance for basic tasks. The PowerVR GE8320 GPU allows for light gaming, though the experience might not be smooth with graphics-intensive games. While handling typical applications is not an issue, the limited RAM options (2GB and 3GB) might show constraints in multitasking scenarios.