The WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA costs $0.0757/GB while the Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM costs $0.0375/GB. Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM offers 50% better value per gigabyte as of July 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA vs Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM — Which Is Better Value?
WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA
Specification Comparison
| Spec | WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA | Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM |
|---|---|---|
| Brand | Western Digital | Seagate |
| Capacity | 4TB | 4TB |
| $/GB | $0.0757 | $0.0375 |
| Price | $302.99 | $149.99 |
| 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 Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM offers better value at $0.0375//GB compared to the WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA at $0.0757//GB — that's roughly 50% less per gigabyte.
The best deal for the Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM is $149.99 at Newegg, while the WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA starts at $302.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA and Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM product page for detailed specifications and price history.
Frequently Asked Questions
Is WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA or Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM a better deal?
As of July 2026, Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM offers better value at $0.0375//GB compared to WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA at $0.0757//GB. That is approximately 50% better value per gigabyte.
What is the price per GB of WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA?
The WD G-DRIVE ArmorATD 4TB 2.5' Portable Rugged Hard Drive SDPH81G004TGBA is currently priced at $0.0757/GB ($302.99 for 4TB) at Newegg.
Where can I buy Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM for the cheapest price?
The cheapest price for the Seagate BarraCuda ST4000DM004 4TB 5400 RPM 256MB Cache SATA 6.0Gb/s 3.5' Hard Drives Bare Drive - OEM is $149.99 at Newegg, which works out to $0.0375/GB.