You have three options to transfer data from iPhone to iPhone
Use iCloud
AirDrop
Computer
Let’s discuss three ways one by one how to transfer data from iPhone to iPhone
Before Transfering data, you need to make sure that both your iPhones are Signed into iCloud
Open Control Center and touch and hold the network settings card On the sender's iPhone
Tap AirDrop
Select Everyone for 10 minute
Tap the sender's device in the Other Devices section of the AirDrop screen, On the recipient's iPhone
To receive, the receiver needs to accept
To decline, the receiver needs to decline the transfer
Back up your old iPhone to iCloud
Turn on your new iPhone and connect it to Wi-Fi
Follow the setup prompts until you reach the Apps & Data screen
Select Restore from iCloud Backup
Sign in to iCloud with your Apple ID
Select the backup you want to restore
Tap Restore and follow the prompts
Turn on your new iPhone
Follow the setup prompts until you reach the Apps & Data screen
Select Restore from Mac or PC
Connect your new iPhone to the computer that you used to back up your old iPhone
If you are looking for how to transfer data from iPhone to iPhone using third-party tools you can go with AnyTrans and Dr.Fone to transfer data from iPhone to iPhone
Still, if You’re having a problem You Can visit Apple Support or you can also watch this video on how to transfer data from iPhone to iPhone