Worth the Upgrade
The 3rd generation Fire TV Cube has several new features to justify upgrading from your current Fire TV like HDMI pass-through for easy integration with set-top boxes. Additionally, the cube has a more powerful processor that improves picture quality. As the top-of-the-line Fire TV model, the cube combines the functionality of a smart Echo speaker and a streaming Amazon Fire TV.
Like other Echo devices, far-field microphones allow hands-free control of the Fire TV Cube and can respond to Alexa