A Samsung 85-inch Smart TV offers a large display with various features depending on the specific model. Key features often include 4K resolution, HDR support (including HDR10+), smart TV capabilities powered by Tizen OS, and various connectivity options like Wi-Fi, Ethernet, and multiple HDMI and USB ports. Some models also boast advanced technologies like Quantum Dot, Neo QLED, and Quantum Processor for enhanced picture quality.