How much data does a HQ YouTube video use?

I couldn't find the answer anywhere. The vid i want to watch is 20 minutes and i have an iPhone. Also, anyone know what resolution HQ is? 480p, 720p...?

Thanks anyone!

Comments

  • HD resolutions are

    1080p: 1920x1080

    720p: 1280x720

    It depends on the video format & quality, how much data it will consume.

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