The Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black costs $0.0222/GB while the SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive costs $0.0681/GB. Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black offers 67% better value per gigabyte as of June 2026. Both products are available on BuyPerUnit with prices from Amazon, Best Buy, and Newegg.
Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black vs SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive — Which Is Better Value?
Specification Comparison
| Spec | Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black | SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive |
|---|---|---|
| Brand | Seagate | SanDisk |
| Capacity | 18TB | 18TB |
| $/GB | $0.0222 | $0.0681 |
| Price | $399.00 | $1224.99 |
| 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 One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black offers better value at $0.0222//GB compared to the SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0681//GB — that's roughly 67% less per gigabyte.
The best deal for the Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black is $399.00 at Newegg, while the SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive starts at $1224.99 at Newegg.
However, price per gigabyte isn't everything — consider factors like warranty, performance specs, brand reliability, and your specific capacity needs. Check each Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black and SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive product page for detailed specifications and price history.
Frequently Asked Questions
Is Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black or SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive a better deal?
As of June 2026, Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black offers better value at $0.0222//GB compared to SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive at $0.0681//GB. That is approximately 67% better value per gigabyte.
What is the price per GB of Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black?
The Seagate One Touch 18TB USB 3.0 / USB Type-C Hard Drives - Desktop External Black is currently priced at $0.0222/GB ($399.00 for 18TB) at Newegg.
Where can I buy SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive for the cheapest price?
The cheapest price for the SanDisk Professional 18TB G-DRIVE PROJECT Thunderbolt 3 External Hard Drive is $1224.99 at Newegg, which works out to $0.0681/GB.