Blackview BV4900 PRO 4G Rugged Smartphone-------7(4+3)GB+64GB. 1 x Blackview BV4900 PRO Rugged Phone. Battery ------5580mAh. About Blackview. BLACKVIEW was founded in March 2013 by serial entrepreneur Xu Ming(David Xu), who believes that high-quality technology doesn't need to cost a fortune.