South Korean giant Samsung on Wednesday launched its flagship device, Galaxy S8, that has a voice assistant, after much speculation over its specifications over past few months. The device comes in two variants with different screen sizes -- the 5.8-inch Galaxy S8 and 6.2-inch Galaxy S8 Plus - and will be available from April 21. Registrations begin from March 30. The device might be priced from $720 (approximately Rs 47,000). Samsung will release these devices in India in the coming months. Samsung also revealed Bixby, a smart voice assistant to rival Apple's Siri and Google's Assistant. With a perfect amalgam of voice, vision and touch, Bixby can search restaurants, take screenshots and even book a cab for you. The technology giant has used the best hardware and provided the best features available to date in the device. The device has a bezel-less curved edge "infinity display" covered with pristine glass and a 12MP rear camera with multi-frame proces