Acer p660, p600 series. Display resolution: 480 x 272 pixels, Display: LCD, Display size (HxV): 101.6 mm (4.0 "). Processor clock speed: 400 MHz, Built-in processor: Samsung S3C2440. Weight: 195 g, Width: 116 mm, Depth: 81 mm. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 1200 mAh. GPS receiver: SiRF StarIII, Internal memory: 64 MB, Storage capacity: 64 MB