The "Ridmi UA" likely refers to the Redmi A3, a smartphone from Xiaomi's Redmi series. It is known for its large, circular camera deco design and a focus on minimalist aesthetics. The phone features a 6.71-inch HD+ display, a 5000mAh battery, and an 8MP AI Dual Camera with vintage film filters. It also offers up to 6GB of RAM and 128GB of storage, expandable via microSD.