When comparing Seagate Expansion 1TB Portable External Hard Drive vs WD My Passport, the Slant community recommends WD My Passport for most people. In the question“What are the best portable/pocket hard drives under $100?” WD My Passport is ranked 3rd while Seagate Expansion 1TB Portable External Hard Drive is ranked 6th. The most important reason people chose WD My Passport is:
At 0.54lbs, it's quite portable and easy to just throw into a bag and carry around.
Specs
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Pros
Pro USB powered
This device does not need an external power cord, it is powered through a Universal Serial Bus (USB) cable.
Pro Different storage capacities to choose from
In the link provided, you have the option to choose between 1TB, 2TB, 3TB or 4TB models. Staying under the $100 budget you can get up to a 2TB drive.
Pro Very portable
At 0.54lbs, it's quite portable and easy to just throw into a bag and carry around.
Pro Relatively long warranty
The WD My Passport comes with a 3-year warranty.
Pro Large Capacity options
Models available to up to 4TB.
Pro Supports Mac and PC
Supports both NTFS and HFS+(needs formating).
Pro Has a backup software
Western Digital provides a backup application that can be downloaded from the manufacturer's site. You can use the application to create automated backups or manual on-demand backups.
Pro WD is generally more reliable than Seagate Drives
Cons
Con No carrying case by default
In the default option, you do not get a carrying case with this device, so you'll need to purchase one separately.
Con No color selection
This may be an objective con, but for those who prefer to customize their accessories, the only color choice this hard drive comes in is black.
Con Relatively slow for single-file transfers
Even though it has a 201.8MB/s write speed, according to benchmarks it's surprisingly slow with single-file transfers compared to other portable hard drives.
Con Doesn't have a Thunderbolt port
If you use a Mac or a higher end Windows unit, you may have experienced the speed of Thunderbolt external devices. Thunderbolt drives are more expensive than USB drives. Though, a similar 5400 rpm drive using a Thunderbolt connection can read 1.5x faster than USB 3. But you may not care depending on your usage. It has not hurt some users, some 80% of computer users will not find any benefit to Thunderbolt.