Skip to main content
Portable SSDs

As an Amazon Associate I earn from qualifying purchases. We may earn a commission from qualifying purchases made through links on this page. Prices and availability are subject to change. We are reader-supported and independent — our rankings are based on an objective scoring rubric, not sponsorship.

Lexar SL660 Portable 2TB vs Seagate One Touch SSD Portable 1TB

Compare Lexar SL660 Portable 2TB and Seagate One Touch SSD Portable 1TB 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
Check on Amazon →

Seagate

Seagate One Touch SSD Portable 1TB
7.7/10

A 1TB budget portable from Seagate — typically the lowest-priced 1TB brand-name Gen 2 portable SSD available. Comes with the Resident Rescue data-recovery plan, which is meaningful coverage at a price point where the drive is seen as disposable.

1030 MB/s budget drive
Both USB-C/A cables
Rescue data recovery plan
Check on Amazon →

Spec Comparison

Spec
Lexar SL660 Portable 2TB
Seagate One Touch SSD Portable 1TB
Read Speed
2.0 GB/s ✓
1.0 GB/s
Write Speed
2.0 GB/s ✓
1.0 GB/s
Capacity
2 TB ✓
1 TB
Interface
USB 3.2 Gen 2x2
USB 3.2 Gen 2
Endurance (TBW)
1,200 TB ✓
600 TB
Warranty
3 Years
3 Years
Score
8.2/10 ✓
7.7/10
Total Wins
5 wins
0 wins

Frequently Asked Questions

Which is better, Lexar SL660 Portable 2TB or Seagate One Touch SSD Portable 1TB?
The Lexar SL660 Portable 2TB scores 8.2/10 compared to 7.7/10 for the Seagate One Touch SSD Portable 1TB. 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 1TB?
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 1TB. Capacity options differ: Lexar SL660 Portable 2TB is 2TB while Seagate One Touch SSD Portable 1TB is 1TB. The Lexar SL660 Portable 2TB uses USB 3.2 Gen 2x2 while the Seagate One Touch SSD Portable 1TB uses USB 3.2 Gen 2.
Which is faster, Lexar SL660 Portable 2TB or Seagate One Touch SSD Portable 1TB?
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 1TB. That's a 94% speed advantage.
Which has better value, Lexar SL660 Portable 2TB or Seagate One Touch SSD Portable 1TB?
The Lexar SL660 Portable 2TB scores higher (8.2 vs 7.7/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Lexar SL660 Portable 2TB vs Samsung T9 Portable SSD → Seagate One Touch SSD Portable 1TB vs Samsung T9 Portable SSD →
Lexar SL660 Portable 2TB vs Samsung T9 Portable 4TB → Seagate One Touch SSD Portable 1TB vs Samsung T9 Portable 4TB →
Lexar SL660 Portable 2TB vs Crucial X10 Pro Portable 4TB → Seagate One Touch SSD Portable 1TB vs Crucial X10 Pro Portable 4TB →
Lexar SL660 Portable 2TB vs Sabrent Rocket Nano V2 → Seagate One Touch SSD Portable 1TB vs Sabrent Rocket Nano V2 →