Celkon A21 Connectivity and Features

Connectivity and Features

The phone supports dual SIM functionality, operating on GSM and HSPA networks, appealing to users interested in keeping two active lines for personal and professional use. Connectivity options include Wi-Fi 802.11 b/g/n, Bluetooth 4.0, and FM radio, satisfying basic connectivity needs. However, it lacks advanced features such as NFC and GPS, which potential power users might find limiting. The inclusion of a 3.5mm headphone jack ensures compatibility with most audio peripherals, catering to traditional audio accessory users.