Western Digital My Passport 1TB Portable External Hard Drive: 5 of 8 decision facts sourced.
Western Digital My Book 4TB Desktop External Hard Drive: 1 of 8 decision facts sourced. Missing: Interface, Sequential read, Sequential write, Endurance (TBW), DRAM cache, Warranty, Starting MSRP.
| Western Digital My Passport 1TB Portable External Hard Drive | Western Digital My Book 4TB Desktop External Hard Drive | |
|---|---|---|
| Price today | Price not yet checked | Price not yet checked |
| Capacity | 1TB bestbuy.com | 4TB westerndigital.com |
| Interface | Up to 5GB/sec. bestbuy.com | Not yet sourced |
| Sequential read | up to 5Gb/s westerndigital.com | Not yet sourced |
| Sequential write | up to 5Gb/s westerndigital.com | Not yet sourced |
| Starting MSRP | $129.99 bestbuy.com | Not yet sourced |
Not yet sourced — Western Digital My Passport 1TB Portable External Hard Drive: Endurance (TBW), DRAM cache, Warranty. Western Digital My Book 4TB Desktop External Hard Drive: Interface, Sequential read, Sequential write, Endurance (TBW), DRAM cache, Warranty, Starting MSRP. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.
Verdict: Pick Western Digital My Passport 1TB Portable External Hard Drive if you need a compact, password‑protected drive and can work with 1 TB capacity. Pick Western Digital My Book 4TB Desktop External Hard Drive if you need a larger 4 TB storage pool and a stationary desktop solution. Neither publishes endurance, DRAM cache or warranty yet.
Western Digital My Passport 1TB Portable External Hard Drive lists at $170 while Western Digital My Book 4TB Desktop External Hard Drive lists at $109.99 — Western Digital My Book 4TB Desktop External Hard Drive undercuts Western Digital My Passport 1TB Portable External Hard Drive by $60.01 (55%).
Provisional pick: Close call — not enough sourced decision facts for Western Digital My Book 4TB Desktop External Hard Drive. We don't rank on specs we can't verify.
| Western Digital My Passport 1TB Portable External Hard Drive | Western Digital My Book 4TB Desktop External Hard Drive | |
|---|---|---|
| Capacity | 1TB | 4TB |
| Interface | Up to 5GB/sec. | — |
| Sequential read | up to 5Gb/s | — |
| Sequential write | up to 5Gb/s | — |
| Starting MSRP | $129.99 | — |
| Internal or External | External | — |
Provisional pick: Close call — not enough sourced decision facts for Western Digital My Book 4TB Desktop External Hard Drive.
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