Mio Spirit 475. Form factor: Wireless Receiver Module. Display diagonal: 109.2 mm (4.3 "), Display resolution: 480 x 272 pixels. Processor clock speed: 400 MHz, Built-in processor: Samsung S3C2450. Weight: 0.152 kg, Width: 127.2 mm, Depth: 18.5 mm. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 720 mAh