Conclusion
The Celkon A402 is a testament to the type of entry-level smartphones available in 2015. While it lacks high-end features, it was designed to meet the essential needs of a smartphone user at a fraction of the cost. Its dual SIM capability, basic camera, and reliable connectivity features made it an attractive choice for budget-conscious consumers. However, its limited internal storage and processing power may impede performance by today's standards, which highlights the strides technology has made in the budget sector over the years. Despite its discontinuation, the Celkon A402 remains a relevant case study in the evolution of budget smartphones.