Sony NV-U50. Form factor: Handheld. Map view options: 3D. Display diagonal: 88.9 mm (3.5 "), Display resolution: 320 x 240 pixels, Display: LCD. Processor clock speed: 300 MHz, Built-in processor: Intel PXA255. Weight: 310 g, Width: 104.7 mm, Depth: 87.5 mm