This premium TV features dramatic detail, reduced glare and our most powerful brightness. Smooth motion, depth and 4K processing make for a non-stop, breathtaking picture. ¹144Hz requires compatible content connection from compatible PCs. Motion Xcelerator 144Hz is sometimes called Motion Xcelerator Turbo+. ²Utilizes AI-based formulas. ³Samsung Account required for network-based smart services, including streaming apps and other smart features. Separate [connected] computer, mobile or other device may be necessary to create/log in to Samsung Account (free to download and create). Without Account log in, only external device connections (e.g., via HDMI) and terrestrial/over-the-air TV (only for TVs with tuners) available.