There are a few different ways that you can backup your iPhone without using iTunes. One way is to use iCloud, which comes with your Apple ID. Another way is to use a third-party app, such as dr.fone – Backup & Restore.
If you want to use iCloudto backup your iPhone, you can do so by going to Settings iCloudBackup. Make sure that iCloudBackup is turned on, and that your iPhone is connected to a Wi-Fi network. iCloudwill backup …