The Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black costs $0.0503/GB while the WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN costs $0.0347/GB. WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN offers 31% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black vs WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN — Which Is Better Value?
Specification Comparison
| Spec | Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black | WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 4TB | 4TB |
| $/GB | $0.0503 | $0.0347 |
| Price | $201.19 | $138.99 |
| Retailer | Newegg | Newegg |
| Category | Hard Drives (HDD) | Hard Drives (HDD) |
| Subcategory | hdd | hdd |
Price Across Retailers
Which Should You Buy?
Based on current pricing data, the WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN offers better value at $0.0347//GB compared to the Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black at $0.0503//GB — that's roughly 31% less per gigabyte.
The best deal for the WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN is $138.99 at Newegg, while the Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black starts at $201.19 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black and WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black or WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN a better deal?
As of July 2026, WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN offers better value at $0.0347//GB compared to Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black at $0.0503//GB. That is approximately 31% better value per gigabyte.
What is the price per GB of Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black?
The Seagate 4TB One Touch Portable Hard Drive USB 3.0 Model STKZ4000400 Black is currently priced at $0.0503/GB ($201.19 for 4TB) at Newegg.
Where can I buy WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN for the cheapest price?
The cheapest price for the WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN is $138.99 at Newegg, which works out to $0.0347/GB.