Turn on the new iPhone and place it near the old iPhone
Make sure both iPhones are connected to Wi-Fi and have enough battery
Follow the Quick Start prompt on the old iPhone
Scan the animation on the new iPhone with the old iPhone
Enter the old iPhone passcode on the new iPhone
Set up Face ID or Touch ID on the new iPhone
Choose Transfer from iPhone to move data directly
Keep both iPhones close together until the transfer finishes
Sign in to your Apple ID if prompted
Wait for apps, photos, messages, and settings to finish syncing
If Quick Start is not available, use iCloud backup
On the old iPhone, go to Settings, tap your name, tap iCloud, then iCloud Backup, and tap Back Up Now
On the new iPhone, choose Restore from iCloud Backup during setup
Sign in with your Apple ID and select the latest backup
If needed, use a computer and Finder or iTunes to back up the old iPhone and restore it to the new iPhone
Check that contacts, photos, apps, and messages transferred correctly
Reinstall or re-enter passwords for apps and accounts if needed