The Siri Remote gives you control of the Apple TV 4K and Apple TV devices. You'll be able to use Siri to find what you want to watch using your voice. A Lightning to USB cable is included to help keep it powered up.
Spoiler: The specs don't matter as much as which platform you live in and which streaming services you use. That being said, the Shield TV (2019) is too great of a package to pass up on, unless you have others in the home that rely on Apple's TV+ streaming service.