Choose an external HDD for a large local backup when uploading files is impractical, or a portable SSD if you regularly carry and transfer large files and have a compatible connection. Cloud storage suits access across devices; for irreplaceable files, keep a separate local copy too, and check what each backup actually includes before removing files from your laptop.
If you want copies of documents, photos and other laptop files, define the backup scope before choosing storage capacity. Microsoft Support describes external-drive backups for Windows files, while Apple Support describes Time Machine backups for Macs.
If photos and videos are accumulating across a phone and laptop, decide whether you mainly need a portable local copy or access from several devices. Connection compatibility matters for a drive; account usage matters for cloud storage.
If losing personal records or memories would be especially disruptive, plan for more than one separate copy. The National Cyber Security Centre warns that backups left connected to an infected computer can also be affected.
For a full laptop or growing photo library, start with what you need to copy, then decide whether local transfer, access across devices or keeping copies separate is your main priority. An external HDD, portable SSD, cloud account and combined routine address different parts of that decision.
| Concern | What to check | Who this matters to |
|---|---|---|
| Capacity and backup scope | Measure the files you intend to copy and allow for growth and any backup history. For Mac Time Machine, Apple Support advises a disk with at least twice the Mac’s storage capacity if the backup disk is nearly full. | If my laptop or photo library is filling up, I need room for the files I actually plan to protect, not just a drive labelled with a familiar capacity. Around 28% of consumers would put capacity first. |
| Portable transfers and compatibility | Check the laptop’s ports, the drive’s connection standard and its operating-system and formatting requirements. A USB-C connector alone does not establish transfer speed. | When I carry large files between devices, I want a drive that connects to each one without relying on an assumed speed or adapter. For roughly 22% of consumers, portable transfer and compatibility would be the primary need. |
| Access and account limits | Check which devices and folders are covered, how much account storage is already used and the subscription’s billing terms. Google One Help says Google Drive, Gmail and Google Photos share the account allowance. | I need my documents or photos on more than one device, but I also need enough room alongside the other files in my account. Around 22% of consumers would prioritise access and account limits. |
| Separate, usable copies | Plan when backups run, keep a local copy disconnected when practical, review cloud-account access and try restoring a few files. The National Cyber Security Centre warns about connected backups being affected during ransomware incidents. | If a file cannot be replaced, I need another copy that remains usable when my laptop or an account has a problem. Keeping copies separate would come first for roughly 28% of consumers. |
The files selected for backup, later photo growth and any retained backup history determine how much space you need.
Measure the folders you intend to protect. If you use Mac Time Machine, apply Apple Support’s disk-capacity guidance to that setup rather than to every backup method.
The connector shape does not establish the laptop port’s capability. Samsung’s stated T7 Shield transfer rates depend on a USB 3.2 Gen 2 host and cable, with UASP enabled.
Check the laptop port, cable and drive specifications together before making transfer speed the deciding factor.
The National Cyber Security Centre warns that ransomware has affected connected USB and network backup drives.
Run backups regularly, then disconnect and store a local copy securely when practical. Keep another separate copy for files you cannot replace.
Google Drive, Gmail and Google Photos share Google account storage, according to Google One Help. Apple Support says upgraded iCloud+ plans are billed monthly.
Review existing account usage, the folders covered and the subscription terms before choosing a storage tier.
Seagate’s One Touch portable HDD range is a local-storage option for personal file backups.
Samsung’s portable SSD range includes models for carrying and transferring local files.
Apple offers iCloud storage for access across Apple devices and Time Machine for local Mac backups.
Google Drive and Google Photos can suit files you want available through a Google account.
Microsoft provides Windows File History for local file backups and OneDrive options for cloud access.
These portable SSDs are options for keeping a local copy of laptop files or a photo library. Compare their stated capacity with your intended backup set, and check device and connection compatibility; a local drive can also form one part of a routine that keeps another copy elsewhere.
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For a portable local copy of photos or laptop files, compare its 2 TB capacity with the size of your backup set and expected growth.
The title specifies USB 3.2 Gen 2; check your laptop port and cable before relying on transfer-speed claims.
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For a portable copy of documents or photos, check whether its 1 TB capacity accommodates the files you plan to protect and any future growth.
The title specifies USB 3.2 Gen 2; confirm the laptop connection and cable if transfer speed matters to you.
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Consider this portable local-copy option if you also need to check a drive for use with an iPhone 15 or 16 setup. Confirm the phone, attachment and file-formatting requirements before storing files.
The title specifies 1 TB and USB 3.2 Gen 2, with stated transfer rates of up to 1,050 MB/s read and 1,000 MB/s write; actual speed depends on the connection.
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For carrying a local file copy between compatible USB-C devices, check whether 1 TB covers your backup set and whether each device supports the intended use.
The title specifies USB 3.2 Gen 2x2 and a transfer rate of up to 2,000 MB/s; check laptop support for that interface before using the stated maximum as a deciding factor.
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For a portable local copy of photos or laptop files, check whether 1 TB covers the files and backup history you intend to keep.
Samsung states that this T7 Shield model uses USB 3.2 Gen 2 and quotes up to 1,050 MB/s read and 1,000 MB/s write with a compatible host, cable and UASP setup. Its stated environmental resistance is not a guarantee against data loss.
Choose capacity based on the files you will protect, their likely growth and any backup history you want to retain. For Mac Time Machine specifically, Apple Support advises a disk with at least twice the Mac’s storage capacity if the backup disk is nearly full; that is not a universal requirement for file-only or cloud backups.
Yes, both Windows and Mac computers can use external storage, but their backup setup and drive requirements differ. Microsoft Support describes an external drive or network location for Windows File History, while Apple Support describes external storage for Time Machine; check the connection and formatting before putting files on a drive.
Check current account usage, which services share the allowance, the billing terms and which folders and devices the backup setup covers. Google One Help says its account storage is shared across Drive, Gmail and Google Photos; Apple Support says upgraded iCloud+ plans are billed monthly.
Do not rely on sync alone as your only copy of irreplaceable files. The National Cyber Security Centre warns that connected backup locations can be affected during ransomware incidents; keep another separate copy and periodically check that you can restore files.