Skip to main content
External 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 SL100 Pro 1TB vs SanDisk Extreme Portable 1TB

Compare Lexar SL100 Pro 1TB and SanDisk Extreme Portable 1TB side by side. Both are 1TB USB 3.2 Gen 2 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Lexar

Lexar SL100 Pro 1TB
7.5/10

A 950 MB/s Gen 2 portable in a brushed-aluminum case the size of a credit card. The SL100 Pro is one of the smallest 1TB Gen 2 SSDs at retail — buy it for the form factor, not the rated speed (which undershoots the Gen 2 ceiling).

Brushed-aluminum case
950 MB/s read
Tiny credit-card footprint
Check on Amazon →
Our Pick

SanDisk

SanDisk Extreme Portable 1TB
8.5/10

The non-Pro Extreme is the lower-cost sibling — same 1050 MB/s rated read and IP55 rugged body, but writes top out well below Extreme Pro on sustained workloads. A solid buy when the write-speed gap doesn't matter (game consoles, file transfer, backup) but the rugged rating does.

IP55 rugged body
Same 1050 read as Extreme Pro
Cheaper than Pro by a wide margin
Check on Amazon →

Spec Comparison

Spec
Lexar SL100 Pro 1TB
SanDisk Extreme Portable 1TB
Read Speed
950 MB/s
1.1 GB/s ✓
Write Speed
950 MB/s
1.0 GB/s ✓
Capacity
1 TB
1 TB
Interface
USB 3.2 Gen 2
USB 3.2 Gen 2
Endurance (TBW)
600 TB
600 TB
Warranty
3 Years
3 Years
Score
7.5/10
8.5/10 ✓
Total Wins
0 wins
3 wins

Frequently Asked Questions

Which is better, Lexar SL100 Pro 1TB or SanDisk Extreme Portable 1TB?
The SanDisk Extreme Portable 1TB scores 8.5/10 compared to 7.5/10 for the Lexar SL100 Pro 1TB. Our expert analysis favors the SanDisk Extreme Portable 1TB for its superior speed.
What's the difference between Lexar SL100 Pro 1TB and SanDisk Extreme Portable 1TB?
The key differences: The Lexar SL100 Pro 1TB offers 950 MB/s reads vs 1,050 MB/s for the SanDisk Extreme Portable 1TB. Capacity options differ: Lexar SL100 Pro 1TB is 1TB while SanDisk Extreme Portable 1TB is 1TB. The Lexar SL100 Pro 1TB uses USB 3.2 Gen 2 while the SanDisk Extreme Portable 1TB uses USB 3.2 Gen 2.
Which is faster, Lexar SL100 Pro 1TB or SanDisk Extreme Portable 1TB?
The SanDisk Extreme Portable 1TB is faster with 1,050 MB/s read speeds compared to 950 MB/s for the Lexar SL100 Pro 1TB. That's a 11% speed advantage.
Which has better value, Lexar SL100 Pro 1TB or SanDisk Extreme Portable 1TB?
The SanDisk Extreme Portable 1TB scores higher (8.5 vs 7.5/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

Lexar SL100 Pro 1TB vs Samsung T9 2TB → SanDisk Extreme Portable 1TB vs Samsung T9 2TB →
Lexar SL100 Pro 1TB vs Samsung T9 Portable SSD → SanDisk Extreme Portable 1TB vs Samsung T9 Portable SSD →
Lexar SL100 Pro 1TB vs Crucial X10 Pro 2TB → SanDisk Extreme Portable 1TB vs Crucial X10 Pro 2TB →
Lexar SL100 Pro 1TB vs Samsung T7 4TB → SanDisk Extreme Portable 1TB vs Samsung T7 4TB →