How-To Geek recently used a smart plug to measure the wattage used by five popular streaming devices including a Roku Ultra, Chromecast Ultra and Chromecast with Google TV. For the Fire TV 4K and Apple TV 4K, they used sources from the Internet.
https://www.techspot.com/news/95809-streaming-media-player-power-consumption-compared.html?utm_source=dlvr.it&utm_medium=blogger
https://www.techspot.com/news/95809-streaming-media-player-power-consumption-compared.html?utm_source=dlvr.it&utm_medium=blogger