You can pay for more if you choose to, and this method has the added bonus of being able to access your files anywhere via the iCloud website if you lose your iPhone. The amount of space available for free, however, is limited. ICloud lets you backup and sync your iPhone, iPod touch, or iPad to Apple's servers. Click the checkbox next to Sync with this iPhone over Wi-Fi.
Wired sync is faster and you can watch it happen, but Wi-Fi sync is much more convenient and you don't even have to remember to start it. How to enable Wi-Fi syncing in iTunes 12 for Windows 10
Repeat the process for Movies, TV Shows, and Photos. If you don't want to sync music, leave the box unchecked.
