Streaming vs. downloading: Which uses more battery and data?

Does it make more sense to download in advance, or should you stream whenever possible? Video and sound quality have an impact on battery and data usage.

Does it make more sense to download in advance, or should you stream whenever possible? Video and sound quality have an impact on battery and data usage.<p><img src="https://www.engadget.com/img/gallery/streaming-vs-downloading-which-uses-more-battery-and-data/intro-1793805857.jpg" /></p>