After years of wait, the world's first Ubuntu Phone, BQ Aquaris E4.5, is all set to go on sale in Europe on Monday at a price of £127 (about $194). The specifications are - 4.5-inch QHD display, a quad-core MediaTek Cortex A7 processor clocked at 1.3GHz, 1GB of RAM, 5-megapixel front camera and an 8-megapixel rear camera.