Start a phone move by finding your information. A contact may belong to a cloud account, a photo may exist only on the phone, and a document may be an offline copy of a shared file. Recording those locations first makes the transfer easier to verify and makes accidental loss easier to avoid.
Make a small inventory before changing anything
Have both devices, their chargers, a reliable connection, and a way to sign in to your accounts. Confirm that account recovery and two-factor authentication will still work during the move. For a work-managed phone, ask the administrator which transfer and backup methods are permitted.
Open the account list in Contacts and Calendar, the backup status in your photo app, and the storage locations in your file app. Record account labels and locations, not passwords or recovery codes. Use our phone-transfer checklist to track what you have checked.
Scroll sideways for all columns. Keyboard users can focus the table and use the arrow keys.
| Data | Find its source | Check on the destination |
|---|---|---|
| Contacts and calendars | Which account or local address book contains the record? | Check several older and newer records, including a recurring event. |
| Photos and videos | Are originals uploaded, local, or optimized previews? | Open older media and play a complete video; check download availability. |
| Files and recordings | Which folders and apps own the files? | Open the exported files with the intended app. |
| Messages and app data | Does the app offer its own migration or backup? | Inspect history and attachments inside that app. |
| Account access | Which device or method supplies sign-in approval? | Verify access on the new phone before retiring the old method. |
Counts are a useful warning signal, but equal counts alone prove little. Two address books can have the same number of records with different contents. Combine counts with samples that matter to you.
Choose sync, backup, or transfer for the job
Sync maintains a shared working collection across devices. A backup stores a recoverable copy according to its service's rules. A transfer moves supported information into a new device. A synced deletion can change the shared collection, so a second signed-in phone should not be your only protection against an editing mistake.
Apple explains that iCloud Backup covers information that is not already syncing to iCloud. For example, a library using iCloud Photos is handled through photo synchronization rather than being duplicated in the daily device backup. Check both the device backup and the relevant service's status.
Use the supported setup route for the actual devices. Apple Quick Start supports a guided iPhone/iPad move, including direct transfer or downloading from iCloud. Keep the devices near each other and powered until the process finishes. Google's Android-to-Android transfer guide explains wired and wireless setup, account sign-in, and categories that may require separate attention, such as Downloads and data from apps outside the normal transfer path. Manufacturer-specific tools may have different coverage.
A USB copy is useful for ordinary files, but copying a visible folder does not necessarily capture a private app database. Export through the app when that is its documented recovery method. Keep the original export unchanged while testing an import.
Work through one missing-data example
Fictional example: 220 contacts become 205
A reader records 205 contacts in a cloud account and 15 in a local address book. The new phone shows only the 205 cloud contacts. The 15-record gap points to the local collection, so the reader checks those records, exports them through the old contact app, and imports them into the chosen destination account. The expected total is 220 only if all 15 are distinct.
After importing, compare names and actual phone/email fields, then check the account assignment. If five entries duplicate existing people, blindly demanding a total of 220 would preserve duplicates instead of verifying a correct transfer.
For calendars, check time zones, reminders, and recurring events. For photos, confirm that representative originals can be retrieved, rather than stopping at thumbnails. For documents, open a few complex files with images or attachments. Keep a list of exceptions and resolve them before deleting anything.
Retire the old phone only after access works
Use the new phone for a normal round of tasks: a call, a message, a photo, a calendar edit, and the accounts you depend on. Follow each app's instructions for authentication and locally stored information. Retain a verified backup or export for the period you need it.
Moving the telephone number is a separate operation covered in our number-transfer guide. Protect saved copies with the account and device controls in our phone privacy guide. Once the data and access checks pass, follow the manufacturer's current sign-out and erase instructions for the old device. Avoid manually deleting synced collections as a way to prepare it for resale.