Performance
Running on Android 2.3.6 Gingerbread, the Karbonn A9 was powered by a single-core 1.0 GHz processor. Combined with 512MB of internal memory, the device was sufficient for basic applications and operations but struggled with multitasking or more resource-intensive tasks. The presence of a microSDHC card slot allowed users to expand storage, which was crucial given the limited internal space.