The Xiaomi 15 Ultra features a cutting-edge design with a new battery cover material that glass fiber board spraying and rubbing process. This design was carefully chosen not only for its aesthetic appeal but also to improve the overall user experience. To ensure the best possible tactile feel and enhance the durability of the device, the battery cover is designed to slightly protrude from the middle frame. This subtle elevation is intentional and is part of the innovative design that contributes to the phone's premium look and feel.
It is important to note that this design choice is completely normal and does not indicate a defect or quality issue. In fact, the phone undergoes rigorous professional inspection before leaving the factory to ensure that it meets Xiaomi's high standards and specifications. This includes checks for functionality, durability, and overall performance. Please rest assured to use it.