For personal photos and files, use a cloud service when automatic phone backup matters, an external drive for a separate local computer copy, or a NAS when several people need shared storage and can manage its backups. A USB stick suits occasional transfers or an additional copy, but should not be the only recovery plan. Whichever route you choose, check what is copied, where the separate copy is kept and how you would restore it.
If you use an iPhone, iPad or Android phone, an account-based service can reduce the need for manual transfers. Check photo syncing separately from device backup, and make sure the account has room for the content you want to keep.
Microsoft says File History can make regular copies of selected folders to an external drive or network location. This route makes sense if you can keep the destination available and know how to restore a file when needed.
A NAS offers a central local destination for a shared library, but someone needs to configure and maintain its backup jobs. Synology recommends keeping copies on more than one medium, including an off-site copy, rather than relying on the NAS alone.
Start with the data you need to recover, then choose a route that can copy it from your devices and restore it when the original is unavailable.
| Priority | What to check | Your needs |
|---|---|---|
| Recoverable copy | Identify what is copied, where the separate copy lives and how to restore a test file. The National Cyber Security Centre describes a backup as a copy kept in a separate safe location. | If I lose access to my phone or computer, I want to retrieve the photos and files that matter, not just find that they were once transferred. |
| Device and schedule | Check ports and file-system support for a physical drive. For automatic copies, Apple specifies power, Wi-Fi and a locked screen for iCloud device backup; Microsoft File History needs an external drive or network location. | I would rather have copies update regularly than depend on remembering a manual USB transfer. The route also needs to work with the devices I use. |
| Storage allowance | Count photos, videos and other account data together. Google says storage is shared across Drive, Gmail, WhatsApp backups and Google Photos; check the allowance and any subscription terms before relying on it. | My photo library may grow alongside email and other files, so I need enough room for future copies as well as what I store today. |
| Separate destination | Check whether a drive or NAS would be kept alongside the original device. Synology recommends copies on different media, with one off-site, for its NAS backup approach. | If a local device fails or becomes unavailable, I want another copy somewhere else rather than depending on that single location. |
| Retention and restoration | Check how long earlier or deleted files remain recoverable. Microsoft documents 30-day OneDrive file-version history and a 30-day deleted-file recovery window for personal accounts. | I may not notice a changed or deleted file immediately, so I need to understand the recovery window before treating version history as an archive. |
Apple says iCloud Photos syncs photos and videos separately from the daily iCloud device backup. Moving files to USB and then deleting the only other copy can likewise leave you dependent on one device.
List the photos, documents and device data you need to keep. Check where each is copied and try restoring a sample before removing an original.
Google storage is shared across Drive, Gmail, WhatsApp backups and Google Photos, so other account data uses the same allowance.
Check total account use, remaining capacity and the terms of any storage expansion before relying on future automatic uploads.
An external drive or NAS gives you a local destination, but one location does not provide a separate off-site copy. Synology recommends a backup approach using different media and an off-site copy.
Keep another copy in a separate location and periodically restore a small selection of important files to check the process.
Microsoft documents 30-day OneDrive file-version history and, for personal accounts, recovery of files deleted within the last 30 days.
Check the window for your account and retain a separate copy of files you may need well after a deletion or change.
These services illustrate different backup workflows; a brand reference does not mean its service or device is included in the product selection below.
iCloud provides separate device-backup and photo-syncing workflows for iPhone and iPad users.
Google offers account-based storage for Android device data, photos and files.
File History supports local Windows file copies, while OneDrive offers recovery features for files stored in the account.
Synology NAS tools support managed backups for people prepared to maintain a central local system.
These external drives are options for making local copies of personal photos and files. Check your device connection and backup routine before choosing one; a drive on its own does not cover the cloud or NAS routes discussed above.
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The 4 TB capacity offers space for a local copy of a substantial photo or file library. The product name specifies USB Type-C and USB 3.2 Gen 2x2; check your device connection and plan how often you will make and test copies.
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Consider the 2 TB capacity against the size of the library you intend to copy. Its name specifies USB Type-C and USB 3.2 Gen 2x2; confirm device and file-system compatibility, and arrange recurring copies if you need them.
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This 2 TB drive is an option for a local computer copy. If you want scheduled backups, confirm the software and setup for your computer; Mac users should check compatibility and any driver requirement before choosing it.
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The 1 TB capacity is worth comparing with the size and expected growth of your files. Its name specifies USB Type-C and USB 3.2 Gen 2x2; confirm your device connection and how you will repeat and check backups.
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This 1 TB option can hold a separate local copy if its capacity suits your library. The product name specifies USB Type-C and USB 3.2 Gen 2 (3.1 Gen 2); check device compatibility and keep another copy elsewhere for valuable files.
It can count as a separate copy if you keep the original and store the checked USB copy safely. The National Cyber Security Centre defines a backup as a copy kept in a separate safe location; moving the only copy onto USB is a transfer, not that kind of backup.
Not when iCloud Photos is enabled. Apple Support says those photos and videos sync to iCloud separately and are not included in the daily iCloud device backup, so check both settings and how you would recover the content.
Apple Support says iCloud Backup must be enabled and the iPhone or iPad connected to power and Wi-Fi with its screen locked. Check that the backup completes and that your account has sufficient storage.
Google says backed-up device data is erased after 57 days of device inactivity, except photos or videos saved through Google Photos. Check which content is in device backup and which is in Google Photos before resetting or retiring the phone.
No. Synology recommends a backup approach with three copies on two storage media, including one off-site copy. Plan and test a separate backup destination rather than treating the NAS as your only recovery route.