Western Digital My Passport 4TB vs SanDisk Extreme Portable SSD 1TB

Name: Western Digital My Passport 4TB vs SanDisk Extreme Portable SSD 1TB — Comparison Review
Item: Western Digital My Passport 4TB vs SanDisk Extreme Portable SSD 1TB
Rating: 8.1
Author: Billy G.

By Billy G. · Founder & Lead EditorVerified Nov 13 by Billy G.

Western Digital My

Western Digital My Passport 4TB

SanDisk Extreme Portable

SanDisk Extreme Portable SSD 1TB

Decision sheet: the facts that decide it

Western Digital My Passport 4TB: 3 of 6 decision facts sourced. Missing: Power, Warranty, Starting MSRP.

SanDisk Extreme Portable SSD 1TB: 5 of 8 decision facts sourced.

	Western Digital My Passport 4TB	SanDisk Extreme Portable SSD 1TB
Price today	Price not yet checked	Price not yet checked
Capacity	4TB westerndigital.com	1TB sandisk.com
Dimensions	4.22" x 2.95" x 0.53" westerndigital.com	Not yet sourced
Weight	0.31lbs westerndigital.com	Not yet sourced
Starting MSRP	Not yet sourced	$449.99 bestbuy.com

Not yet sourced — Western Digital My Passport 4TB: Power, Warranty, Starting MSRP. SanDisk Extreme Portable SSD 1TB: Endurance (TBW), DRAM cache, Warranty. No manufacturer, official or retailer source we read publishes these yet; we don't estimate them.

Pick SanDisk Extreme Portable SSD 1TB if

Lower price today — $99.99 vs $109.99

Skip both if

Neither publishes power or warranty yet.

The Western Digital My Passport 4TB and the SanDisk Extreme Portable SSD 1TB represent two distinct approaches to portable storage, one built around high-capacity spinning rust and the other around compact flash memory. Public specifications show the My Passport 4TB delivering four times the storage of the SanDisk model, along with published dimensions of 4.22 by 2.95 by 0.53 inches and a weight of 0.31 pounds, while the SanDisk Extreme Portable SSD 1TB remains more compact and notably lighter though exact figures for the latter are less consistently reported across retail listings. Review aggregates indicate the mechanical drive offers strong value for users who need bulk archiving or media libraries at a lower cost per gigabyte, whereas the SSD consistently earns praise for faster transfer speeds, greater shock resistance, and silent operation that suits on-the-go workflows. The short version: choose the Western Digital My Passport 4TB when raw capacity matters most. And the SanDisk Extreme Portable SSD 1TB when speed and durability in a smaller package take priority.

Verdict: On the figures both makers publish, the Extreme Portable SSD 1TB leads with lower price today ($99.99 vs $109.99). Neither publishes power or warranty yet.

Western Digital My Passport 4TB lists at $109.99 while SanDisk Extreme Portable SSD 1TB lists at $99.99 — SanDisk Extreme Portable SSD 1TB undercuts Western Digital My Passport 4TB by $10 (10%).

Provisional pick: SanDisk Extreme Portable SSD 1TB — not enough sourced decision facts for Western Digital My Passport 4TB. We don't rank on specs we can't verify.

Spec-by-spec comparison

	Western Digital My Passport 4TB	SanDisk Extreme Portable SSD 1TB
Capacity	4TB	1TB
Dimensions	4.22" x 2.95" x 0.53"	—
Weight	0.31lbs	—
Interface	—	USB 3.0
Sequential read	—	Up to 2000MB/s
Sequential write	—	up to 1700MB/s

Western Digital My Passport 4TB

What works

4TB of portable storage
Compact dimensions for easy transport
Lightweight at 0.31lbs

What doesn't

No SSD speed specifications published

SanDisk Extreme Portable SSD 1TB

What works

Fast transfer speeds up to 2000MB/s read
Portable SSD design for durability

Bottom line

Provisional pick: SanDisk Extreme Portable SSD 1TB — not enough sourced decision facts for Western Digital My Passport 4TB.

View full comparison on GoodPickr

Related Comparisons

People also compared

Western Digital My Passport 4TB Portable External Hard Drive vs Seagate Backup Plus Portable 5TB External Hard Drive External Hard Drive
SanDisk Extreme Portable SSD 1TB vs Western Digital My Passport 1TB Portable External Hard Drive Portable SSD
Western Digital My Passport 4TB Portable External Hard Drive vs Samsung T7 Portable SSD 2TB External Hard Drive
Western Digital My Passport 4TB vs Seagate Portable 5TB external hard drive
Western Digital My Passport 1TB vs SanDisk Extreme Portable SSD 1TB External Hard Drive
western digital my book 4tb desktop external hard drive vs western digital my passport 4tb portable external hard drive External Hard Drive

Browse all comparisons

Buying guides · In-depth comparisons

View Interactive Comparison →

Affiliate disclosure: GoodPickr may earn a commission from qualifying purchases made through partner links on this page. Verdicts are editorially independent and never influenced by affiliate relationships.

GoodPickr · Data-backed product comparisons · Built by Golden Consulting Partners