Samsung Interactive Display WA75C - 85" Diagonal Class WAC Series LED-backlit LCD display - education / business - with touchscreen (multi touch) - Android - 4K UHD (2160p) 3840 x 2160 - Direct LED - space gray Unlimited learning potential Samsung interactive display WAC series offers a dynamic, engaging experience designed for the classroom of the future. Its intuitive interface and wide compatibility make it easier for teachers to leverage education apps and features that optimize lessons to help students discover the joy of learning. Boost learning with familiar UX Android 11 OS WAC series provides intuitive and convenient user experience for teachers. WAC series makes it easy for teachers to boost the learning experience, and enables customization of the home screen with frequently-used apps for added convenience.