Conclusion
The NIU C21A remains a representation of an era focused on simple, reliable communication without the frills of today’s smartphones. Its range of color options and dual SIM capability offer a slight edge in terms of personalization and utility for minimalist users. However, by modern standards, its lack of features like advanced cameras, extensive connectivity options, and multimedia capabilities may limit its appeal to a niche audience seeking basic functionality in a nostalgic or budget-friendly package.