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External SSDs

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OWC Envoy Pro FX 4TB vs WD My Passport SSD 4TB — Which External SSD Is Faster & Better Value?

Compare OWC Envoy Pro FX 4TB and WD My Passport SSD 4TB side by side. Both are 4TB Thunderbolt 3 external SSDs, but they differ in speed, design, and value. Here's how they stack up.

Our Pick

OWC

OWC Envoy Pro FX 4TB
8.9/10

4TB of Thunderbolt 3 storage in an aluminum unibody barely larger than the 1TB. The Envoy Pro FX 4TB is a niche-of-one — buyers typically pay the premium for video editing workflows where 4000 MB/s sustained links plus 4TB of room actually matter.

Thunderbolt 3 + 4TB
Aluminum unibody
2800 sustained writes
Check on Amazon →

Western Digital

WD My Passport SSD 4TB
8.6/10

The 4TB My Passport SSD has a niche-of-one — the only 4TB USB-C portable from WD in this form factor. A viable T7 4TB competitor on sale, but check price moves against the Samsung before committing.

4TB in slim body
1050/1000 MB/s
Hardware encryption included
Check on Amazon →

Spec Comparison

Spec
OWC Envoy Pro FX 4TB
WD My Passport SSD 4TB
Read Speed
2.8 GB/s ✓
1.1 GB/s
Write Speed
2.8 GB/s ✓
1.0 GB/s
Capacity
4 TB
4 TB
Interface
Thunderbolt 3
USB 3.2 Gen 2
Endurance (TBW)
2,400 TB
2,400 TB
Warranty
3 Years
3 Years
Score
8.9/10 ✓
8.6/10
Total Wins
3 wins
0 wins

Frequently Asked Questions

Which is better, OWC Envoy Pro FX 4TB or WD My Passport SSD 4TB?
The OWC Envoy Pro FX 4TB scores 8.9/10 compared to 8.6/10 for the WD My Passport SSD 4TB. Our expert analysis favors the OWC Envoy Pro FX 4TB for its superior speed.
What's the difference between OWC Envoy Pro FX 4TB and WD My Passport SSD 4TB?
The key differences: The OWC Envoy Pro FX 4TB offers 2,800 MB/s reads vs 1,050 MB/s for the WD My Passport SSD 4TB. Capacity options differ: OWC Envoy Pro FX 4TB is 4TB while WD My Passport SSD 4TB is 4TB. The OWC Envoy Pro FX 4TB uses Thunderbolt 3 while the WD My Passport SSD 4TB uses USB 3.2 Gen 2.
Which is faster, OWC Envoy Pro FX 4TB or WD My Passport SSD 4TB?
The OWC Envoy Pro FX 4TB is faster with 2,800 MB/s read speeds compared to 1,050 MB/s for the WD My Passport SSD 4TB. That's a 167% speed advantage.
Which has better value, OWC Envoy Pro FX 4TB or WD My Passport SSD 4TB?
The OWC Envoy Pro FX 4TB scores higher (8.9 vs 8.6/10), 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 4TB vs Samsung T9 2TB → WD My Passport SSD 4TB vs Samsung T9 2TB →
OWC Envoy Pro FX 4TB vs Samsung T9 Portable SSD → WD My Passport SSD 4TB vs Samsung T9 Portable SSD →
OWC Envoy Pro FX 4TB vs Crucial X10 Pro 2TB → WD My Passport SSD 4TB vs Crucial X10 Pro 2TB →
OWC Envoy Pro FX 4TB vs Samsung T7 4TB → WD My Passport SSD 4TB vs Samsung T7 4TB →