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Seagate Backup Plus Slim STHN 1TB
Promise Pegasus R4
See Top Ranked Portable HDD

Seagate Backup Plus Slim STHN (2019) vs Promise Pegasus R4

Analysis:

The Seagate Backup Plus Slim STHN 1TB is an example of a great Portable HDD at its $50 budget.

In the case of the $1786 Promise Pegasus R4, however, we weren't able to find enough data to come to any reliable conclusions. If you're considering buying a Portable HDD in the $450 range, we encourage you to take a look at some other options.

The Seagate Backup Plus Slim STHN 1TB was loved by reviewers at Wirecutter (NYTimes), a highly trusted source that performs reliable in-depth testing. It did great in its "The Best Tech and Apps for Your Home Office" roundup where it was named its "Top Pick", which, in itself, makes it a product worth considering.

As for the Promise Pegasus R4 - PCmag, a source that conducts reliable hands-on testing, has featured it in its Promise Pegasus R4 Review roundup. However, it didn't make it to any of the top spots.

We couldn't find any sources that tested both of these Portable HDD, so we only analyzed how they performed in reviews from different sites.

We first examined which sources rated each of these best and found that the Seagate Backup Plus Slim STHN 1TB got its highest, 9, rating from kitguru.net, while the Promise Pegasus R4 earned its best, 8, score from PCmag.

Lastly, we averaged out all of the reviews scores that we could find on these two products and compared them to other Portable HDD on the market. We learned that both of them performed far better than most of their competitors - the overall review average earned by Portable HDD being 7.3 out of 10, whereas the Seagate Backup Plus Slim STHN 1TB and Promise Pegasus R4 managed averages of 8.1 and 8.0 points, respectively.

Due to the difference in their prices, however, it's important to keep in mind that a direct Seagate Backup Plus Slim STHN 1TB vs. Promise Pegasus R4 comparison might not be entirely fair - some sources don't take value for money into account when assigning their scores and therefore have a tendency to rate more premium products better.

Comparison of expert ratings
Highly Recommended
Recommended
Mentioned
Not Mentioned
Wirecutter (NYTimes)
kitguru.net
PCmag
techadvisor.com
iMore
Techradar
idg.com.au
Tech. Specs Comparison
Seagate Backup Plus Slim STHN 1TB
$64
Promise Pegasus R4
$1,786
Storage Capacity
1000 (GB)
-
Higher than average expert review score
7.4
Overall Avg. for Portable HDD
8.1
Avg. Review Score
Score
Higher than average expert review score
7.4
Overall Avg. for Portable HDD
8.0
Avg. Review Score
Score
Recommended by trusted experts
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Best Tech and Apps for Your Home Office” 
Last updated: 15 Jul 2021
techadvisor.com
Trusted Source
Depth of
analysis
Yes
In-house
Testing
Rated 9.0 out of 10
in “Best external hard drive for PS4” 
Last updated: 2 Jan 2018
Wirecutter (NYTimes)
Highly Trusted Source
Depth of
analysis
Yes
In-house
Testing
Best Overall
in “The Best External Hard Drives” 
Last updated: 22 Mar 2021
iMore
Trusted Source
-
Depth of
analysis
No
In-house
Testing
Mentioned
in “Best MacBook Pro accessories 2021” 
Last updated: 20 Aug 2021
Recommendations
No Data

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