Performance
Under the hood, the Celkon A402 runs on the Android 4.4.2 KitKat operating system and is powered by a Spreadtrum 7715 chipset with a 1.2 GHz CPU. The inclusion of the Mali-400 GPU allows for basic graphical tasks. However, its internal storage of 4GB and 512MB of RAM limits performance, as these specs are barely sufficient for multitasking or running contemporary applications. An external microSDHC slot is available, allowing users to expand storage for additional media or apps.