Repeated playback is more efficient when media is downloaded first

Downloading media is generally more efficient than repeatedly streaming it, because the initial data and battery cost is spread across later plays. This matters most for music, videos and podcasts people revisit, though streaming can use less when something is played only once and stopped early.

Downloads take up storage, and apps may cache some content even when users do not deliberately save it. The article recommends downloading over Wi-Fi and managing quality: Spotify says lossless audio can use up to 1 GB per hour, compared with 0.14 GB at its “Very high” 320 kbps setting; lower video resolutions also use less space and data, but can reduce sharpness.