Photos

iPhone to iPhone, there are three ways,

1. Quick Transfer using Bluetooth (Does not require Internet) --> Use QuickStart to transfer data to a new iPhone, iPad or iPod ...
2. Restore from iCloud Backup (Does not require Internet) -> Restore or set up your device from an iCloud backup - Apple ...
3. Restore from iTunes backup (Does not require Internet) --> Restore your iPhone, iPad, or iPod touch in iTunes on PC ...

If you had turned on iCloud Photos, your content is automatically stored in iCloud and is available on all devices that use the same Apple ID