Samsung Galaxy Tab S4 to its predecessor. As a result, the Tab S4 no longer features a fingerprint sensor or navigation and home buttons, and uses a facial and iris scanner instead. The front-facing selfie-camera has been upgraded to 8 megapixels and can record in 1080p resolution. The four stereo speakers have also been tuned by AKG and support Dolby Atmos surround sound. The front and back glass uses Gorilla Glass 3 and the front doesn't have the Samsung logo. The Tab S4 comes with Samsung Experience 9.5, which is based on Android 8.1 Oreo. New features include Samsung Knox protection and a Daily
Samsung Lee's death in 1987, Samsung was separated into four business groups – Samsung Group, Shinsegae Group, CJ Group and Hansol Group. Since 1990, Samsung has increasingly globalised its activities and electronics; in particular, its mobile phones and semiconductors have become its most important source of income. As of 2017, Samsung has the 6th highest global brand value. Notable Samsung industrial affiliates include Samsung Electronics (the world's largest information technology company, consumer electronics maker and chipmaker measured by 2017 revenues), Samsung Heavy Industries (the world's 2nd largest shipbuilder measured by 2010 revenues), and Samsung Engineering and Samsung C&T (respectively the world's