Navking Route 66 I-66. Form factor: Handheld/Fixed. Display diagonal: 127 mm (5 "), Display resolution: 800 x 480 pixels. Storage media type: Flash, Internal storage capacity: 4 GB, Internal RAM: 128 MB. Processor clock speed: 533 MHz, Built-in processor: SiRFatlasV. Weight: 0.155 kg, Width: 134 mm, Depth: 10 mm