Video 1080p uses about 3GB an hour
Video eats the most data by far
1080p video runs about 3GB an hour. Music streaming or browsing over the same hour is around 0.15GB — a twenty-fold difference. If data is running short, video quality is almost always the lever to pull.
One quality step down is half the data
Dropping from 1080p to 720p alone cuts usage roughly in half. On a phone screen the two are hard to tell apart, so keeping video at 720p outdoors is the easiest way to save data. 4K runs about 7GB an hour and barely matters on a small screen.
These are estimates
Even at the same 1080p, a fast-motion video uses more than a static one. Apps using newer codecs (AV1, HEVC) can use 30–50% less at the same quality. Check your phone’s own data-usage screen for what actually happened.
Autoplay and preloading add up
Autoplay in social apps downloads videos you never watch. Switching autoplay to Wi-Fi-only in an app’s settings usually saves more than lowering video quality does.
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Frequently asked questions
QAre these numbers accurate for every app?
They’re common estimates, not per-app measurements. The same resolution can use noticeably more or less depending on the codec, screen size, and how much motion is in the video.
QWhy is a video call cheaper than 1080p video?
Video calls compress much harder for real-time delivery, and typically run at a lower resolution than a streamed video, so they use less data per hour.