Technology Oppo A83 with 5.7-inch 18:9 display, Face Unlock feature launched in China December 28, 2017 johorbiznet Johor News Oppo A83 with 5.7-inch 18:9 display, Face Unlock feature launched in China The Indian Express OPPO A83 Only Supports Face Unlock For Biometric Security Lowyat.NET (blog) Oppo A75 and A75s with 6-inch 18:9 Displays and 20MP front cameras launched Rayarena Full coverage Source: Technology News Feed