The Seagate Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive costs $0.0550/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 37% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive vs WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN — Which Is Better Value?
Specification Comparison
| Spec | Seagate Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive | WD 4TB My Passport Ultra Portable Storage External Hard Drive USB-C Gold WDBFTM0040BGD-CESN |
|---|---|---|
| Brand | Seagate | Western Digital |
| Capacity | 4TB | 4TB |
| $/GB | $0.0550 | $0.0347 |
| Price | $220.00 | $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 Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive at $0.0550//GB — that's roughly 37% 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 Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive starts at $220.00 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 Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive 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 Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive 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 Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive at $0.0550//GB. That is approximately 37% better value per gigabyte.
What is the price per GB of Seagate Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive?
The Seagate Constellation ES.3 ST4000NM0053 4TB 7200 RPM 128MB Cache 3.5' Internal Hard Drive is currently priced at $0.0550/GB ($220.00 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.