There are lots of ways to share content between Apple devices. Use AirDrop to share files, photos, passwords and more, or copy and paste between devices using Universal Clipboard.
Copy content from one device, and paste it to another nearby device within a short period of time. The contents of your Clipboard are sent over Wi-Fi and made available to all Mac, iPhone, iPad, and iPod touch devices that are signed in with the same Insert photos and scans with Continuity Camera on Mac in the macOS User Guide.