Every movement is sharply displayed with the Sony KD-60XF8305. This 4K television has a refresh rate of 100Hz, so fast actions like a tennis player's serve or a leopard chasing its prey are smoothly displayed. If there's nothing on TV, you can open a world of entertainment via the smart functions. The Android operating system offers a clear menu in which live TV, websites, and useful apps come together. You can easily switch from a television program to a YouTube video. Don't feel like navigating the options via buttons? Just give the remote's microphone a simple voice command.