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External SSDs

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

Compare OWC Envoy Pro FX 1TB and SanDisk Extreme Pro 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 1TB
8.7/10

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

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

SanDisk

SanDisk Extreme Pro 4TB
9.2/10

Extreme 4TB portable SSD with 2000MB/s speeds and IP55 rating. The ultimate high-capacity drive for professionals on the go.

4TB capacity with 2000MB/s read and write
IP55 water and dust resistance
5-year warranty
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Spec Comparison

Spec
OWC Envoy Pro FX 1TB
SanDisk Extreme Pro 4TB
Read Speed
2.8 GB/s ✓
2.0 GB/s
Write Speed
2.8 GB/s ✓
2.0 GB/s
Capacity
1 TB
4 TB ✓
Interface
Thunderbolt 3
USB 3.2 Gen 2x2
Endurance (TBW)
600 TB
1,200 TB ✓
Warranty
3 Years
5 Years ✓
Score
8.7/10
9.2/10 ✓
Total Wins
2 wins
4 wins

Frequently Asked Questions

Which is better, OWC Envoy Pro FX 1TB or SanDisk Extreme Pro 4TB?
The SanDisk Extreme Pro 4TB scores 9.2/10 compared to 8.7/10 for the OWC Envoy Pro FX 1TB. Our expert analysis favors the SanDisk Extreme Pro 4TB for its superior value.
What's the difference between OWC Envoy Pro FX 1TB and SanDisk Extreme Pro 4TB?
The key differences: The OWC Envoy Pro FX 1TB offers 2,800 MB/s reads vs 2,000 MB/s for the SanDisk Extreme Pro 4TB. Capacity options differ: OWC Envoy Pro FX 1TB is 1TB while SanDisk Extreme Pro 4TB is 4TB. The OWC Envoy Pro FX 1TB uses Thunderbolt 3 while the SanDisk Extreme Pro 4TB uses USB 3.2 Gen 2x2.
Which is faster, OWC Envoy Pro FX 1TB or SanDisk Extreme Pro 4TB?
The OWC Envoy Pro FX 1TB is faster with 2,800 MB/s read speeds compared to 2,000 MB/s for the SanDisk Extreme Pro 4TB. That's a 40% speed advantage.
Which has better value, OWC Envoy Pro FX 1TB or SanDisk Extreme Pro 4TB?
The SanDisk Extreme Pro 4TB scores higher (9.2 vs 8.7/10), indicating better overall value in our evaluation. Check both models on the retailer's site for the latest details.

More Comparisons

OWC Envoy Pro FX 1TB vs Samsung T9 2TB → SanDisk Extreme Pro 4TB vs Samsung T9 2TB →
OWC Envoy Pro FX 1TB vs Samsung T9 Portable SSD → SanDisk Extreme Pro 4TB vs Samsung T9 Portable SSD →
OWC Envoy Pro FX 1TB vs Crucial X10 Pro 2TB → SanDisk Extreme Pro 4TB vs Crucial X10 Pro 2TB →
OWC Envoy Pro FX 1TB vs Samsung T7 4TB → SanDisk Extreme Pro 4TB vs Samsung T7 4TB →