Navigon 4310 max. Form factor: Fixed. Map view options: 2D, 3D. Display diagonal: 109.2 mm (4.3 "), Aspect ratio: 16:9. Processor clock speed: 500 MHz, Built-in processor: SiRFatlasIV. Weight: 0.17 kg, Width: 119 mm, Depth: 20.9 mm