Conclusion
The Celkon C399 was launched at an affordable price point of around 20 EUR, marking it as an economical choice for customers during its release period. Targeting users primarily interested in voice communication and basic mobile functionality, it carried features necessary for simplifying life through simple connectivity and prolonged battery life. Although technology has rapidly evolved since 2013, the Celkon C399 remains a testament to the utility and reliability offered by feature phones in their prime.