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Portable SSDs

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Seagate One Touch SSD Portable 500GB vs Samsung T9 Portable 4TB

Compare Seagate One Touch SSD Portable 500GB and Samsung T9 Portable 4TB side by side. Both are 500GB USB 3.2 Gen 2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Seagate

Seagate One Touch SSD Portable 500GB
7.5/10

A 500GB One Touch is Seagate's bottom-of-line portable SSD — usually the cheapest brand-name Gen 2 1TB-and-below portable at retail. The bundle includes Rescue data recovery (extending Seagate's warranty protection into physical damage recovery).

1030 MB/s read
Budget pricing
Both USB-C and USB-A cables
Check on Amazon →
Our Pick

Samsung

Samsung T9 Portable 4TB
9.6/10

The 4TB T9 portable is genuinely rare — most 4TB external SSDs cap at Gen 2 (10Gbps) speeds. The T9 4TB holds 2000 MB/s sustained reads AND writes at 4TB. The right drive for working video pros who genuinely travel with 4TB of working RAW footage and need Gen 2x2 link speeds.

Gen 2x2 + 4TB
2400 TBW endurance
5-year warranty
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Spec Comparison

Spec
Seagate One Touch SSD Portable 500GB
Samsung T9 Portable 4TB
Read Speed
1.0 GB/s
2.0 GB/s ✓
Write Speed
1.0 GB/s
2.0 GB/s ✓
Capacity
500 GB
4 TB ✓
Interface
USB 3.2 Gen 2
USB 3.2 Gen 2x2
Endurance (TBW)
300 TB
2,400 TB ✓
Warranty
3 Years
5 Years ✓
Score
7.5/10
9.6/10 ✓
Total Wins
0 wins
6 wins

Frequently Asked Questions

Which is better, Seagate One Touch SSD Portable 500GB or Samsung T9 Portable 4TB?
The Samsung T9 Portable 4TB scores 9.6/10 compared to 7.5/10 for the Seagate One Touch SSD Portable 500GB. Our expert analysis favors the Samsung T9 Portable 4TB for its superior speed.
What's the difference between Seagate One Touch SSD Portable 500GB and Samsung T9 Portable 4TB?
The key differences: The Seagate One Touch SSD Portable 500GB offers 1,030 MB/s reads vs 2,000 MB/s for the Samsung T9 Portable 4TB. Capacity options differ: Seagate One Touch SSD Portable 500GB is 500GB while Samsung T9 Portable 4TB is 4TB. The Seagate One Touch SSD Portable 500GB uses USB 3.2 Gen 2 while the Samsung T9 Portable 4TB uses USB 3.2 Gen 2x2.
Which is faster, Seagate One Touch SSD Portable 500GB or Samsung T9 Portable 4TB?
The Samsung T9 Portable 4TB is faster with 2,000 MB/s read speeds compared to 1,030 MB/s for the Seagate One Touch SSD Portable 500GB. That's a 94% speed advantage.
Which has better value, Seagate One Touch SSD Portable 500GB or Samsung T9 Portable 4TB?
The Samsung T9 Portable 4TB scores higher (9.6 vs 7.5/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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