Design and Build
The Celkon C4040 has a straightforward design, measuring 101 x 52 x 12.5 mm, which makes it compact and easy to handle. Its manageable size is complemented by a lightweight feel due to the lack of advanced features found in larger smartphones. The phone supports dual SIM functionality, allowing users to switch between two different carriers or plans conveniently, which is particularly useful for travelers or those managing separate work and personal lines.