Product model: DT Watch Ultra Product chip: ATS3085S Product dimension: 47 x 13mm (excluding strap and local protrusions) Screen size: 1.5-inch HD screen Screen resolution: 360x360 Memory: 32GB Battery capacity: 390mAh Charging time: Less than 1.5 hours Strap material: Silicone Strap width: 22mm Bluetooth version: Bluetooth 5.3 Compatible app: WearPro Package Contents: 1 x Smartwatch 1 x USB Cable 1 x English Instruction Manual Note: The product package includes only the items listed above. Other items are not included. Note: Light reflection and differences in display screens may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement error is permitted within +/- 1-3cm.