Skip to content
Pickoryx

Samsung BAR Plus vs SanDisk Ultra Flair 128GB: Which Fits Your Transfer and Carry Needs?

The Samsung BAR Plus 128GB has the higher published maximum read ceiling (up to 400MB/s), while the SanDisk Ultra Flair 128GB is lighter and thinner by its listed measurements. Pick based on your host and carry setup; these manufacturer ratings are not a head-to-head performance test.

Published by Pickoryx · Published 2026-10-03

Source checked 2026-10-03 05:55 UTC

Products compared

Pickoryx may earn a commission from qualifying purchases through the paid Amazon links on this page, at no added cost to you.

The buying question

Should the higher published read-speed ceiling and attachment/protection design of the Samsung BAR Plus matter more than the lower listed weight and thinner shape of the SanDisk Ultra Flair?

Manufacturer-published maximum read ratings and physical handling features differ, but neither source provides a controlled comparison of real transfer results.

Quick verdict

Choose Samsung BAR Plus 128GB (MUF-128BE3/AM, Silver) if

  • Your computer has a USB 3.x port and the higher published read ceiling is useful for your file-transfer workflow.
  • You want the BAR Plus integrated key ring or its manufacturer-documented environmental test limits.
View Samsung BAR Plus 128GB (MUF-128BE3/AM, Silver) on AmazonPaid link

Choose SanDisk Ultra Flair 128GB (SDCZ73-128G-G46) if

  • Lower listed mass (4.5g) and a thinner profile are more useful than the BAR Plus attachment loop.
  • SanDisk’s USB 3.0 specification and up-to-150MB/s read rating fit your expected host and task.
View SanDisk Ultra Flair 128GB (SDCZ73-128G-G46) on AmazonPaid link
When the recommendation changes
  • If the host is limited to USB 2.0, both makers document backward compatibility and the listed maximum read ratings may not describe your transfers.
  • If sustained write speed is the deciding factor, the cited sources do not provide comparable write results for these exact 128GB models.

The differences that matter

Manufacturer Rated Sequential Read Ceiling

Samsung BAR Plus 128GB (MUF-128BE3/AM, Silver)

Up to 400 MB/s sequential read for the 128GB MUF-128BE3; write is lower. Samsung states performance varies by host and test conditions.[1, 2]

SanDisk Ultra Flair 128GB (SDCZ73-128G-G46)

Up to 150 MB/s sequential read for SDCZ73-128G-G46; requires a USB 3.0 port and varies with host and usage conditions.[3]

What this changes: The BAR Plus has the higher published maximum read ceiling. These are separate manufacturers’ specifications, not a controlled head-to-head result or a promise of actual transfer time; host port, workload and files matter.[2, 3]

The better fit depends on your priorities

Physical Carry And Environmental Protection

Samsung BAR Plus 128GB (MUF-128BE3/AM, Silver)

Approx. 9.6g; 40.26 × 15.59 × 11.75 mm from Samsung’s 2024 global lineup sheet. The U.S. product page describes a waterproof design; Samsung Canada’s page for the matching MUF-128BE3/AM model describes an integrated keyring. The lineup sheet documents the environmental test limits.[1, 4, 2]

SanDisk Ultra Flair 128GB (SDCZ73-128G-G46)

4.5g; 1.69 × 0.51 × 0.28 inches; SanDisk describes this exact model as having a metal casing.[3]

What this changes: Choose based on how you carry and protect the drive: BAR Plus gives a documented attachment loop and specified environmental-test limits; Ultra Flair has the lower listed mass and a thinner body. Neither fact establishes better real-world durability or data safety.[1, 2, 3, 4]

The better fit depends on your priorities

Best for your routine

A USB 3.x host workflow where the manufacturer-published maximum read rating matters

Best fit: Samsung BAR Plus 128GB (MUF-128BE3/AM, Silver)

Based on listed features, not comparative testing.

Samsung specifies up to 400MB/s sequential read for the 128GB BAR Plus, compared with SanDisk’s up to 150MB/s sequential read rating. The ratings are not a controlled comparison and actual results depend on the host and workload.

View Samsung BAR Plus 128GB (MUF-128BE3/AM, Silver) on AmazonPaid link

Everyday carry where lower listed mass is the priority

Best fit: SanDisk Ultra Flair 128GB (SDCZ73-128G-G46)

Based on listed features, not comparative testing.

SanDisk lists 4.5g for the Ultra Flair versus approximately 9.6g for the BAR Plus; choose from the stated dimensions and mass if carry weight matters more than the BAR Plus loop and environmental-test specification.

View SanDisk Ultra Flair 128GB (SDCZ73-128G-G46) on AmazonPaid link

Value and trade-offs

One or both observed offers have eligibility conditions, so no unrestricted price difference is shown.

A higher current checkout price is worth considering only if the higher stated read ceiling or the BAR Plus’s attachment and documented environmental limits matter to your use. Recheck the current offers when buying.

No price-timing recommendation: this article does not establish a comparable price history. Check the current checkout offers before buying.

Limitations

  • The maximum read figures come from separate manufacturer specifications and internal test conditions; they are not directly comparable lab results. Actual transfer speed depends on the host port, files, workload and other conditions.
  • The cited manufacturer sources do not establish comparable sustained write performance for these exact 128GB models.
  • Samsung’s environmental limits describe specified tests and do not guarantee protection in every use or against data loss.
  • The integrated-keyring design is supported by Samsung Canada’s page for the matching MUF-128BE3/AM model. Canadian offer or regional terms are not applied to the U.S. product; the U.S. page is cited for waterproof-design wording, while dimensions and environmental test values come from the 2024 global lineup sheet.

Questions shoppers ask

Does 400MB/s mean every transfer will be faster on the BAR Plus?

No. It is Samsung’s stated maximum sequential read rating for the 128GB model. SanDisk’s 150MB/s is also a manufacturer maximum read rating; actual results vary and the sources do not provide a common head-to-head test.

Which drive is easier to keep attached to a keyring?

Samsung Canada’s product page for the matching MUF-128BE3/AM model describes an integrated keyring. If a built-in loop matters, that documented design may suit your carry setup; this comparison does not infer that the Ultra Flair lacks an attachment option.

Methodology and sources

The comparison uses the two exact 128GB models identified above. It contrasts manufacturer-published sequential read ceilings and USB compatibility, then compares listed dimensions, mass and documented carrying/protection features. No hands-on or controlled transfer testing was performed.

AI assistance was used to organize source findings and draft this comparison.

View 4 sources
  1. 1.128GB USB 3.2 Flash Drive BAR Plus (Silver)Samsung US · Official specifications · Source checked 2026-10-03 05:20 UTC
    Evidence used on this page
    • Product title, model identifier and highlights: The US page identifies MUF-128BE3/AM and 128GB BAR Plus Silver, labels up to 400MB/s read and waterproof design, and lists USB 3.2.
  2. 2.Samsung USB Flash Drive: BAR Plus Lineup — 2024 Data Sheet, Revision 1.3Samsung Electronics · Official specifications · Source checked 2026-10-03 05:20 UTC
    Evidence used on this page
    • PDF p.3 (zero-based P2): MUF-128BE3 lineup, USB 3.x/2.0 compatibility, speed and dimensions; PDF p.4 (P3): sequential performance and physical specifications; PDF p.5 (P4): multi-proof conditions: The lineup lists the 128GB MUF-128BE3; Samsung specifies up to 400MB/s sequential read for 128GB, USB 3.x with USB 2.0 backward compatibility, dimensions 40.26 × 15.59 × 11.75 mm, approx. 9.6g, and defined water, temperature, X-ray, magnetic and shock test limits. The sheet says performance varies by host and test conditions.
  3. 3.SanDisk Ultra Flair USB 3.0 Flash Drive — 128GB specificationSanDisk · Official specifications · Source checked 2026-10-03 05:20 UTC
    Evidence used on this page
    • Specifications: 128GB model SDCZ73-128G-G46; compatibility; performance note: The exact US product selector lists model SDCZ73-128G-G46, sequential read up to 150MB/s, USB 3.0, USB 2.0 backward compatibility, dimensions 1.69 × 0.51 × 0.28 inches, weight 4.5g, and metal casing. SanDisk says its maximum is based on internal testing, requires a USB 3.0 port and may vary by host, usage and capacity.
  4. 4.Samsung BAR Plus USB 3.1 Flash Drive - 128GB (Canada)Samsung Canada · Official specifications · Source checked 2026-10-03 05:55 UTC
    Evidence used on this page
    • Product header lines 38–42 identifies BAR Plus 128GB Champagne Silver and exact MPN MUF-128BE3/AM; feature section lines 489–495 describes an integrated keyring. Used only for the matching-MPN physical keyring design claim.: The Canadian Samsung page identifies the Champagne Silver 128GB BAR Plus as MUF-128BE3/AM and describes an integrated keyring. It is used only to support that physical design feature. No Canadian price, offer, package contents, warranty, weight, dimensions, operating temperature, or regional protection terms are applied to the U.S. item; use the U.S. page and 2024 global lineup sheet for their respective stated facts.