For family photos and documents that would be hard to replace, use both an off-site cloud copy and a local copy if you can maintain them: that avoids relying on one device or one account. An external drive alone can work as a separate local backup if you update it, disconnect it afterwards and test restoration; cloud storage alone needs careful checks of account access and the service’s recovery rules.
If family photos, scans or documents would be difficult to recreate, focus on whether you can recover a separate copy after a device is lost, fails or is affected by malware. The National Cyber Security Centre advises keeping important data in a separate safe location.
If Windows and Mac computers, or an iPhone or iPad, must use the same drive, check its connection, power needs and file format before moving files. Apple Support sets additional partition and format conditions for direct iPhone access.
Automatic or off-site copies may suit you, but confirm that you can access the account and restore the files you need. Microsoft Support’s OneDrive guidance shows why deletion recovery and whole-account restoration should be checked for the particular service and plan.
Start with a copy you can recover separately from the original device. Then check which household devices must use it and whether your routine can accommodate a disconnected drive, a cloud account or both.
| Concern | What to check | Who this matters to |
|---|---|---|
| Recovery and separation | Make a separate copy of the files that matter; plan when to disconnect a local drive and how to test a restore. | If the original device fails or files are deleted, I need another copy I can actually open. Roughly 36% of consumers put recoverable separation first. |
| Device compatibility | Check the ports, power requirements and file format against every device that must read or write the drive. | My household uses different devices, so I need the backup to work where I would restore it. Around 29% of consumers make cross-device compatibility their primary concern. |
| Cloud recovery rules | Check the plan’s storage allowance, account-recovery options, version history and deleted-file retention. | I want an off-site copy without losing my route back to an older or deleted file. Roughly 21% of consumers focus chiefly on cloud access and restoration terms. |
| Portable copying | Compare the chosen drive’s capacity with your files, and check its connection against the computer and cable you will use. | I regularly move a photo library between devices and need copying to fit a routine I will keep up. About 14% of consumers put portable transfer convenience first. |
A connected drive may be affected by the same incident as the computer. The National Cyber Security Centre describes this risk for backups exposed to ransomware.
After updating at least one local copy, disconnect it, store it separately and periodically check that you can restore files.
Restoration depends on the service and plan. Microsoft Support states that personal OneDrive accounts can restore deleted files within 30 days, while restoring an entire OneDrive requires Microsoft 365.
Check the retention window, version history and account-recovery method before relying on cloud storage as your only extra copy.
A format chosen for one device may not suit another, and reformatting erases the drive’s existing contents.
Decide which devices need read and write access before formatting, and keep another copy of the files first.
Samsung says the cited T7 model’s maximum rated speeds depend on a compatible USB 3.2 Gen 2 host, cable and UASP support. Apple Support also notes that some external hard drives need separate power when used with iPhone.
Check the actual devices, cable and power arrangement you intend to use before choosing a drive.
Depending on that arrangement, you may need a compatible cable, adapter or powered hub.
Samsung’s T7 portable SSD line is relevant if a compact local copy and file-transfer time matter to your routine.
Apple’s device guidance matters when selecting a local-drive format for Macs or direct external-storage access from an iPhone.
Microsoft’s File History and OneDrive guidance is relevant to Windows households considering local copies, cloud storage or both.
These portable SSDs and external hard drives can hold a local copy of household files. Choose capacity for the files you need to protect, check device compatibility, and keep a completed backup disconnected when it is not being updated.
No image available
Consider this portable SSD if a 2 TB local copy suits the size of your household archive.
The title specifies USB Type-C 3.2 Gen 2; check your devices and the drive’s file format before using it across the household.
No image available
Consider this 4 TB portable drive when your files call for more local capacity than the 2 TB options shown here.
The title specifies USB Type-C and USB 3.2 Gen 2x2. Check host and cable compatibility before relying on a transfer-speed claim, and confirm the file format for your devices.
No image available
This 2 TB portable SSD is worth checking if you want a local copy and intend to use its magnetic attachment with an iPhone 15 or 16.
Its title specifies USB 3.2 Gen 2 and rates reads at up to 1,050 MB/s and writes at up to 1,000 MB/s; those are not measured speeds on your devices. The attachment requires the set’s case or ring, and MagSafe wireless charging is not supported while it is attached. Confirm file-format compatibility before transferring files.
No image available
This portable external hard drive is a local-copy option if 2 TB covers the files you plan to protect.
If you intend to schedule backups or use it with macOS, confirm the backup utility’s current compatibility and any driver requirements for your operating system before relying on that routine.
No image available
This Mac-focused portable hard drive offers a 5 TB local-copy option for a larger household archive.
Before using it with Windows, check the required HFS+ driver and whether your intended devices can read and write the files. Confirm any backup software works with your operating system before planning scheduled copies.
Not necessarily: it is a recovery option only if you can restore a separate copy after the deletion, overwrite or other failure you are planning for. Check the service’s version history and restoration conditions; Microsoft Support’s OneDrive guidance shows that recovery features depend on the account and plan.
Measure the folders and photo libraries you need to protect, then leave room for growth and any file versions your backup method will retain. Compare that requirement with the capacity of the exact drive variant you are considering.
Choose the format according to the read and write access each computer needs. Apple Support identifies APFS for Macs using macOS 10.13 or later and ExFAT as Windows-compatible for volumes over 32 GB; check your devices before formatting, as reformatting erases existing contents.
An iPhone can access supported external storage through Files or another supported app, subject to the connection, format and power requirements. Apple Support says the device must have a single data partition and a supported format, and notes that external hard drives often need separate power.
Check that the plan holds all the files you need, that you can regain access to the account, and that its version-history, deleted-file and whole-account restoration rules cover the failures you care about. Do not assume one service’s recovery window applies to another.