Performance and Memory
In terms of performance, the Celkon C399 provides essential functionalities with reliable efficiency. It supports GPRS for basic internet connectivity—though the absence of EDGE means data speed is notably slow by modern standards, and no advanced browsing should be expected. The phone supports external memory expansion through a dedicated microSDHC card slot, accommodating users who wish to store more contacts, messages, or media. The built-in phonebook and call record features add essential convenience for the everyday user, ensuring critical information is easily accessible.