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Portable SSDs

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OWC Envoy Pro FX Portable 1TB vs SanDisk Extreme Pro Portable 4TB — Which Portable SSD Is Faster & Better Value?

Compare OWC Envoy Pro FX Portable 1TB and SanDisk Extreme Pro Portable 4TB side by side. Both are 1TB Thunderbolt 3 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

OWC

OWC Envoy Pro FX Portable 1TB
8.7/10

A 2800 MB/s portable Thunderbolt 3 SSD in an aluminum unibody the size of an iPhone. The Envoy Pro FX is one of the cleanest portable Thunderbolt SSDs at the price tier -- nothing fancy, just speed and thermal management packed in a small aluminum case.

Thunderbolt 3 2800/2800 MB/s
Aluminum unibody heatsink
3-year warranty
Check on Amazon →
Our Pick

SanDisk

SanDisk Extreme Pro Portable 4TB
9.3/10

The 4TB Extreme Pro is the largest portable SSD in SanDisk's ruggedized line and a direct competitor to the Samsung T7 Shield 4TB. The 5-year warranty plus IP55 rubber armor are distinguishing factors vs other 4TB portable SSDs — most peers only offer 3.

4TB @ IP55 rugged
5-year warranty
Both cables in box
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Spec Comparison

Spec
OWC Envoy Pro FX Portable 1TB
SanDisk Extreme Pro Portable 4TB
Read Speed
2.8 GB/s ✓
1.1 GB/s
Write Speed
2.8 GB/s ✓
1.0 GB/s
Capacity
1 TB
4 TB ✓
Interface
Thunderbolt 3
USB 3.2 Gen 2
Endurance (TBW)
600 TB
2,400 TB ✓
Warranty
3 Years
5 Years ✓
Score
8.7/10
9.3/10 ✓
Total Wins
2 wins
4 wins

Frequently Asked Questions

Which is better, OWC Envoy Pro FX Portable 1TB or SanDisk Extreme Pro Portable 4TB?
The SanDisk Extreme Pro Portable 4TB scores 9.3/10 compared to 8.7/10 for the OWC Envoy Pro FX Portable 1TB. Our expert analysis favors the SanDisk Extreme Pro Portable 4TB for its superior value.
What's the difference between OWC Envoy Pro FX Portable 1TB and SanDisk Extreme Pro Portable 4TB?
The key differences: The OWC Envoy Pro FX Portable 1TB offers 2,800 MB/s reads vs 1,050 MB/s for the SanDisk Extreme Pro Portable 4TB. Capacity options differ: OWC Envoy Pro FX Portable 1TB is 1TB while SanDisk Extreme Pro Portable 4TB is 4TB. The OWC Envoy Pro FX Portable 1TB uses Thunderbolt 3 while the SanDisk Extreme Pro Portable 4TB uses USB 3.2 Gen 2.
Which is faster, OWC Envoy Pro FX Portable 1TB or SanDisk Extreme Pro Portable 4TB?
The OWC Envoy Pro FX Portable 1TB is faster with 2,800 MB/s read speeds compared to 1,050 MB/s for the SanDisk Extreme Pro Portable 4TB. That's a 167% speed advantage.
Which has better value, OWC Envoy Pro FX Portable 1TB or SanDisk Extreme Pro Portable 4TB?
The SanDisk Extreme Pro Portable 4TB scores higher (9.3 vs 8.7/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

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