How do I transfer data to a new iPhone?

General
5

Use a temporary external backup with a Lightning or USB‑C flash drive.

  1. On old iPhone, plug in an iPhone‑compatible flash drive.
  2. Use its app to back up Photos, videos, and Contacts to the drive.
  3. On new iPhone, install the same app, plug in the drive, restore data.

This avoids Wi‑Fi issues and iCloud limits.
Example: SanDisk iXpand or similar.
You keep a physical backup in your drawer for safety.