On your iPhone and iPad, there’s a feature called iTunes WIFI sync and it allows you to sync content from iTunes to your WIFI over a WIFI connection. Both devices need to be connected to the same WIFI network for content to be synced over to your iPhone.
With iTunes WIFI syncing, you can sync your movies, TV shows, photos, videos, songs, podcasts, books, and audiobooks. This means that the content on your iPhone will match the content in your iTunes Library. If you want to keep your content up to date, you can use iCloud – this is useful for things like messages, email, calendars, and contacts.
Warning: If you use iCloud to keep your content up to date across all of your iOS devices, sync with your iPhone may be turned Off.
1. Open iTunes and connect your iPhone to your computer with a USB cable. Make sure that the USB cable to MFI certified or you may receive errors during the process.
2. Click the iPhone icon in the upper-left corner.
3. Under Options, Check Sync with this iPhone over WIFI. This will be named iPad if you’re trying to enable iTunes sync on your iPad instead. If you already use iCloud to keep your data up to date across your iOS devices, the Sync with this iPhone over WIFI option will be unavailable.
4. Click Apply. This is in the lower right corner of the iTunes windows.
5. Click Sync then Done. This will appear once the option has been applied. You’ll need to wait for your iPhone to finish syncing after you’ve clicked Apply.
6. Open Settings on your iPhone or iPad.
7. Click General.
8. Select iTunes WI-FI Sync. This is at the bottom of the General menu. At this point, make sure that both your computer and your iPhone are connected to the same WIFI network.
9. Click Sync Now. Your iPhone will now sync with your iTunes on your computer over the same network. At the bottom of the sync now button, you’re told when your last sync was.
If both devices aren’t connected to the same WIFI network, you won’t be able to click the Sync Now button.