How much data does screen mirroring use?
Estimate the bitrate, the data per hour and the total for a mirroring session. Open the advanced options to see how frame rate, codec and quality change it - the same controls the Screen Mirroring app gives you.
Your settings
These are the knobs the Screen Mirroring app exposes. AirPlay, Chromecast and Miracast give you no control over bitrate, codec or frame rate - the app lets you trade quality against data and smoothness on any network.
Want to use less?
Drop to 720p, stay at 30 fps, or switch to a newer codec like HEVC or AV1 and the data falls fast. The Screen Mirroring app lets you set each of these; mirror over your home Wi-Fi and it does not touch your mobile data at all.
Control your quality and data
Get the Screen Mirroring app
Pick the resolution, codec, frame rate and bitrate that suit your network - far more control than the built-in methods give you.
Good to know
Does screen mirroring use my data?
Mirroring sends the picture device to device over your local Wi-Fi, so on a home network it does not use your mobile data plan at all. It only counts against data when you mirror over the internet (for example over a phone hotspot, or the over-the-internet option in the app). The numbers above estimate the size of that stream so you can plan for a metered connection.
The figures are estimates. Real bitrate varies with how much of the screen is moving: a still slideshow uses far less than fast 60 fps video. Not enough bandwidth? Run the Wi-Fi speed test for mirroring.