There is, at least, an HDMI extender in the box that can help with the latter issue while also improving wi-fi performance – though we had no problems with wi-fi without it. By purchasing the optional ethernet adapter, you can hardwire the Fire TV Stick 4K to your router. After the initial setup is complete, there are a few more advanced options to consider. The option to play all content at its native frame rate is disabled by default, but we strongly advise you to enable it. The Fire TV Stick 4K is also set by default to always output HDR, effectively upconverting standard dynamic range content to an unnatural effect – we recommend changing that while in the settings menus.
