Navking Route 66 W40 S. Form factor: Handheld/Fixed. Display diagonal: 109.2 mm (4.3 "). Storage media type: Flash, Internal storage capacity: 2 GB, Internal RAM: 128 MB. Processor clock speed: 533 MHz, Built-in processor: SiRFatlasV. Weight: 135 g, Width: 126 mm, Depth: 13 mm