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Portable SSDs

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Lexar SL660 Portable 2TB vs Seagate One Touch SSD Portable 500GB

Compare Lexar SL660 Portable 2TB and Seagate One Touch SSD Portable 500GB side by side. Both are 2TB USB 3.2 Gen 2x2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

Lexar

Lexar SL660 Portable 2TB
8.2/10

The 2TB SL660 doubles SLC cache budget over the 1TB. RGB and aluminum body preserved -- a competitive Gen 2x2 2TB at moderate pricing, comparable with the Kingston XS2000 2TB and Patriot Evlvr 2TB.

Gen 2x2 2000 MB/s
2TB storage
Aluminum body
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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
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Spec Comparison

Spec
Lexar SL660 Portable 2TB
Seagate One Touch SSD Portable 500GB
Read Speed
2.0 GB/s ✓
1.0 GB/s
Write Speed
2.0 GB/s ✓
1.0 GB/s
Capacity
2 TB ✓
500 GB
Interface
USB 3.2 Gen 2x2
USB 3.2 Gen 2
Endurance (TBW)
1,200 TB ✓
300 TB
Warranty
3 Years
3 Years
Score
8.2/10 ✓
7.5/10
Total Wins
5 wins
0 wins

Frequently Asked Questions

Which is better, Lexar SL660 Portable 2TB or Seagate One Touch SSD Portable 500GB?
The Lexar SL660 Portable 2TB scores 8.2/10 compared to 7.5/10 for the Seagate One Touch SSD Portable 500GB. Our expert analysis favors the Lexar SL660 Portable 2TB for its superior speed.
What's the difference between Lexar SL660 Portable 2TB and Seagate One Touch SSD Portable 500GB?
The key differences: The Lexar SL660 Portable 2TB offers 2,000 MB/s reads vs 1,030 MB/s for the Seagate One Touch SSD Portable 500GB. Capacity options differ: Lexar SL660 Portable 2TB is 2TB while Seagate One Touch SSD Portable 500GB is 500GB. The Lexar SL660 Portable 2TB uses USB 3.2 Gen 2x2 while the Seagate One Touch SSD Portable 500GB uses USB 3.2 Gen 2.
Which is faster, Lexar SL660 Portable 2TB or Seagate One Touch SSD Portable 500GB?
The Lexar SL660 Portable 2TB 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, Lexar SL660 Portable 2TB or Seagate One Touch SSD Portable 500GB?
The Lexar SL660 Portable 2TB scores higher (8.2 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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