The Samsung Galaxy A21s Blue features a 6.5‑inch LCD display with HD+ clarity, an octa‑core processor paired with 4 GB RAM for smooth multitasking, and a quad‑camera array that includes a 48 MP main sensor, ultra‑wide, macro and depth lenses, plus a 13 MP front camera for crisp selfies. A 5000 mAh battery keeps you powered throughout the day, while dual‑SIM support and expandable storage via microSD offer flexible connectivity and ample space for apps and media.