Who needs which kind of copy?

Households protecting family photos

If photos and videos would be difficult to replace after a phone or computer is lost, prioritise an automatic routine, a copy stored separately from the device and a small test restore. A shared photo library alone does not establish what you could recover after deletion.

People working across several devices

If you need current files on a computer and phone, including while away from home, synchronisation may provide the access you want. Check separately how you would retrieve an earlier or deleted version, and whether the account and sharing rules suit everyone who needs access.

People with large local libraries

If much of your photo, video or work-file collection sits on a computer, an external drive offers a local route for making and restoring a copy. Check its capacity and computer connection, then keep the backup current and away from the original device when practical.

What should you check before choosing?

Cloud backup

Choose when: You want a computer's files copied automatically to a location away from that computer.

Bear in mind: Uploads and restores depend on your connection, while coverage and retention depend on the service. Backblaze describes its computer backup as an active mirror, not a permanent archive.

Cloud file synchronisation

Choose when: Your main need is to open and update current files on several devices.

Bear in mind: Deletions and unwanted changes can follow the files between devices; recovery depends on the service's backup and version-history rules. Apple distinguishes data synchronised through iCloud from data included in iCloud Backup.

External drive

Choose when: You want a local copy of a computer's files and a restore route that does not rely on downloading the whole library.

Bear in mind: The copy must be updated and stored safely; a drive beside the computer may be affected by the same incident.

Local and cloud copies

Choose when: Important photos or work files call for both a local restore route and a separate copy away from the device.

Bear in mind: You need to maintain both routines and confirm that the copies are independent, rather than two views of the same synchronised files.

Concern What to check Who this matters to
Recovery after loss or deletion Identify the files covered and check the deletion or version-retention period. Try restoring a small folder. If a device fails or I delete important files, I need a copy I can actually restore. Around 31% of consumers put recoverability first.
Access across devices Check device compatibility and whether household storage is shared or allocated to each person. When I switch between my phone and computer, I want the current files available without mixing up family members' accounts. For around 25% of consumers, cross-device access and sharing are the primary need.
Large-library capacity Measure the files to be protected, allow room for growth and check drive connections or cloud upload requirements. With a growing photo or video library, I need enough space and a practical way to restore it. Roughly 19% of consumers primarily need a workable route for a large library.
Account and copy resilience Check account-recovery methods and two-step verification; keep an independent copy in a separate safe location. If I lose access to an account or one storage location, I do not want every copy to become unreachable. Around 25% of consumers place account security and copy separation first.

Backup mistakes to avoid

  • Treating a synchronised folder as a permanent archive

    An unwanted change can reach other synchronised devices. Microsoft says deleted files in a personal OneDrive account can be restored within 30 days, so that recovery window should not be treated as indefinite retention.

    Check the version-history and deleted-file rules for your plan, and keep an independent copy if older work or photos matter.

    Files or earlier versions may become unrecoverable after the applicable retention window ends.

  • Choosing storage from a household total alone

    The space available to each person may differ from the headline total. Microsoft lists Microsoft 365 Family storage as 1 TB per person for up to six people, rather than one freely pooled allowance.

    Measure each person's files, allow for growth and check how the chosen plan allocates storage before relying on its total capacity.

  • Keeping the only backup drive beside the computer

    A local copy can be affected by an incident at the same location. The National Cyber Security Centre describes a backup as a copy kept in a separate safe place.

    Move the drive to another safe location when appropriate, or maintain an independent off-site copy of files you cannot replace.

  • Protecting files but overlooking account access

    A cloud copy is difficult to use if you cannot recover the account. The National Cyber Security Centre says two-step verification makes access harder for someone who knows your password.

    Enable two-step verification, safeguard your recovery method and check that you could sign in if your usual phone were unavailable.

Relevant brands to consider

Apple

iCloud services are relevant when a household uses Apple devices for photos, files and device backups.

  • Apple distinguishes information synchronised through iCloud from information included in iCloud Backup.
  • Map which photos, files and device information each service covers; do not assume synchronised data is duplicated in the daily device backup.

Microsoft

OneDrive and Microsoft 365 are relevant to households managing current files across computers and mobile devices.

  • Microsoft lists Microsoft 365 Family storage as 1 TB per person for up to six people.
  • Microsoft says personal-account deleted files can be restored within 30 days; check the recovery terms for the account and plan you intend to use.

Backblaze

Backblaze Computer Backup is a route to consider for automatic backup of a Mac or Windows computer rather than everyday file synchronisation.

  • Backblaze describes coverage for computer data and physically connected external drives.
  • Backblaze calls this product an active mirror, not cold storage or a file-sharing service. Check its version-history and disconnected-drive terms against what you need to recover.

Western Digital

WD portable drives offer a local-copy route for files held on a computer.

  • Western Digital documents scheduled backup and password-protection features for the My Passport product family covered by its documentation.
  • Check the exact drive's connection, formatting, software and operating-system requirements; features documented for one model do not apply to every WD drive.

Seagate

Seagate external drives are another local-storage option for computer backups.

  • Seagate describes Toolkit as software for backing up computer files to a storage device.
  • Confirm that the particular drive and operating system support the backup activity you intend to use.

External drives for local copies

These Joybuy drives are options for making a local copy of files and photos. Choose a capacity and connection that fit your devices, then plan how you will keep the copy current and separate from the originals; a local drive alone does not create an off-site backup.

Western Digital My Passport Ultra for Mac 5TB portable hard drive in silver

Western Digital My Passport Ultra for Mac, 5TB, Silver

Consider this for a Mac-centred local copy of a photo or work-file library. It is a 5TB portable external hard drive; compare that capacity with the files you need to protect and check compatibility if you also plan to use it with Windows.

Keep another copy in a separate safe location for files you cannot replace.

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Western Digital My Passport 2TB portable hard drive in black

Western Digital My Passport, 2TB, Black

Consider this for a local copy of computer files if 2TB leaves enough room for your current library and its growth. It is a portable external hard drive; check the software and compatibility requirements for the computer you will use.

Store an independent copy elsewhere if loss of both the computer and drive would put important files at risk.

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Samsung T7 Shield 1 TB portable SSD in blue

Samsung T7 Shield Portable SSD, 1 TB, Blue

Consider this for a portable local copy when 1 TB suits the files you plan to carry or protect. Its title specifies USB 3.2 Gen.2; check the connection and the backup workflow you intend to use rather than assuming that storing files on the SSD schedules backups automatically.

For irreplaceable files, maintain a separate copy away from this drive.

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Common questions

Is cloud synchronisation the same as backup?

No: synchronisation keeps selected current files in step across devices, whereas a backup provides a separate copy for restoration. Apple distinguishes iCloud synchronisation from iCloud Backup; check the recovery and retention rules of any synchronised service before relying on it to retrieve deleted or older files.

How much storage does a household need?

Start with the size of the files each person needs to protect, then leave room for growth and check how the chosen plan or drive allocates capacity. Microsoft lists Microsoft 365 Family as 1 TB per person for up to six people, so its household total should not be mistaken for a single pooled allowance.

Can an external drive be the only backup?

An external drive can hold a recoverable local copy, but one kept with the computer may be exposed to the same loss or damage. The National Cyber Security Centre advises keeping a backup in a separate safe location; for files you cannot replace, consider another independently stored copy.

How should I secure a cloud backup account?

Enable two-step verification and make sure you could use your account-recovery method if your usual phone were lost. The National Cyber Security Centre says two-step verification makes account access harder for someone who has your password; protecting the recovery email matters too.