External hard drives remain the most cost-effective solution for bulk storage — $80–$100 buys 4–6TB of backup space, enough for thousands of videos, RAW photo archives, or complete system backups. In 2026 the choice is between portable bus-powered drives for travel and desktop drives with more capacity per dollar for home backups.

We evaluated storage capacity, transfer speed, reliability history, and value across these four picks from the two most trusted external storage brands.

What to Look For

Our Top Picks

Seagate Expansion 4TB Portable Drive
Best Overall

Seagate Expansion 4TB Portable Drive

Plug-and-play USB 3.0 portable drive with no software required. 4TB in a slim 3.5-inch form factor that works with Windows and Mac without formatting. Best all-around value for backup and extra storage without complexity.

WD My Passport 5TB Portable Drive
Best Portable

WD My Passport 5TB Portable Drive

5TB of portable storage with 256-bit AES hardware encryption, USB-C connection, and WD Backup software included. Available in multiple colors. Drop-shock protection and a 3-year warranty make it the best carry-anywhere backup drive.

Seagate Backup Plus Slim 2TB
Best Budget Portable

Seagate Backup Plus Slim 2TB

Ultra-thin 2TB portable drive that fits in a shirt pocket. USB 3.0, Mac and PC compatible, includes 2 months of Adobe Creative Cloud Photography. Best entry-level portable backup drive for lightweight travel use.

WD Elements Portable 2TB
Best Value

WD Elements Portable 2TB

No-frills 2TB USB 3.0 drive that works with Windows out of the box (reformatting needed for Mac). WD's proven reliability at the lowest price per terabyte in the portable category. Best option when you just need storage without extras.

Bottom line: Seagate Expansion 4TB is the best external hard drive for most people — maximum storage per dollar with zero setup. WD My Passport 5TB is worth the extra $20 if you travel with sensitive data and need hardware encryption. Budget storage: WD Elements 2TB at $55.