The WD - Purple 4TB Surveillance Internal Hard Drive costs $0.0350/GB while the Seagate - Barracuda 4TB Internal Hard Drive for Desktops costs $0.0375/GB. WD - Purple 4TB Surveillance Internal Hard Drive offers 7% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.

WD - Purple 4TB Surveillance Internal Hard Drive vs Seagate - Barracuda 4TB Internal Hard Drive for Desktops — Which Is Better Value?

Better Value
Best Price$139.99
RetailerBest Buy
$/GB$0.0350
Rating4.8 (82 reviews)
Buy at Best Buy — $139.99
Best Price$149.99
RetailerBest Buy
$/GB$0.0375
Rating4.7 (302 reviews)
Buy at Best Buy — $149.99

Specification Comparison

SpecWD - Purple 4TB Surveillance Internal Hard DriveSeagate - Barracuda 4TB Internal Hard Drive for Desktops
BrandWestern DigitalSeagate
Capacity4 TB4 TB
$/GB$0.0350$0.0375
Price$139.99$149.99
RetailerBest BuyBest Buy
CategoryHard Drives (HDD)Hard Drives (HDD)
Subcategoryhddhdd

Price Across Retailers

WD - Purple 4TB Surveillance Internal Hard Drive

Best Buy$0.0350//GB
$139.99Buy

Seagate - Barracuda 4TB Internal Hard Drive for Desktops

Best Buy$0.0375//GB
$149.99Buy

Which Should You Buy?

Based on current pricing data, the WD - Purple 4TB Surveillance Internal Hard Drive offers better value at $0.0350//GB compared to the Seagate - Barracuda 4TB Internal Hard Drive for Desktops at $0.0375//GB — that's roughly 7% less per gigabyte.

The best deal for the WD - Purple 4TB Surveillance Internal Hard Drive is $139.99 at Best Buy, while the Seagate - Barracuda 4TB Internal Hard Drive for Desktops starts at $149.99 at Best Buy.

However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each WD - Purple 4TB Surveillance Internal Hard Drive and Seagate - Barracuda 4TB Internal Hard Drive for Desktops product page for detailed specifications and price history.

Frequently Asked Questions

Is WD - Purple 4TB Surveillance Internal Hard Drive or Seagate - Barracuda 4TB Internal Hard Drive for Desktops a better deal?

As of June 2026, WD - Purple 4TB Surveillance Internal Hard Drive offers better value at $0.0350//GB compared to Seagate - Barracuda 4TB Internal Hard Drive for Desktops at $0.0375//GB. That is approximately 7% better value per gigabyte.

What is the price per GB of WD - Purple 4TB Surveillance Internal Hard Drive?

The WD - Purple 4TB Surveillance Internal Hard Drive is currently priced at $0.0350/GB ($139.99 for 4 TB) at Best Buy.

Where can I buy Seagate - Barracuda 4TB Internal Hard Drive for Desktops for the cheapest price?

The cheapest price for the Seagate - Barracuda 4TB Internal Hard Drive for Desktops is $149.99 at Best Buy, which works out to $0.0375/GB.

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