Change how syncing works on Mac
You can change how syncing works on your Mac. Use the General button of the syncing button bar to select special syncing options. For example, you can sync your Mac and iPhone and iPad using a Wi-Fi connection, set whether syncing automatically starts when a device is connected, turn on Accessibility features, and more.
For more information about syncing, see About syncing your Mac and your devices.
Connect your device to your Mac.
You can connect your device using a USB or USB-C cable or using a Wi-Fi connection. To turn on Wi-Fi syncing, see Sync content between your Mac and iPhone or iPad over Wi-Fi.
In the Finder on your Mac, select the device in the Finder sidebar.
Select General in the button bar.
Select any of the following options:
Manually manage music, movies, and TV shows: Select this checkbox to turn off automatic syncing of music, movies, and TV shows. Doing this can help you save storage space on your device by not transferring all your music, movies, or TV shows.
Automatically sync when this [device] is connected: This option is on by default. To stop automatic syncing when you connect your device, deselect this checkbox.
Show this [device] when on Wi-Fi: Select this option to allow your device to connect to your Mac via Wi-Fi.
Prefer standard definition videos: Select this option to have your Mac sync only smaller standard definition videos. Larger high-definition videos take up more storage and your device may not be able to play them.
Convert higher bit rate songs to: To keep more songs on your device, select this option to have your Mac convert high bit rate songs to lower bit rate songs that take up less storage space on your device.
Configure Accessibility: Click this button to turn on Accessibility features, including Voice Over, Speak Auto-text, special zooming, and more.
Reset Warnings: Click this button to reactivate warning messages that you have selected to not display at specific events.
Before disconnecting your device from your Mac, click the Eject button in the Finder sidebar.