5.Oppo Guangdong Oppo Versatile Broadcast communications Corp.Ltd, doing trade as Oppo may be Chinese buyer hardware and versatile communications company headquartered in Dongguan, Guangdong. Its major item lines incorporate smartphones sound devices power banks Blu-ray players and other electronic items. 4.Xiaomi Xiaomi Organization (/ˈʃaʊmiː/;[2] Chinese: 小米 ) may be a Chinese multinational hardware company established…