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Zarmst USB-C 4-in-1 Flash Drive 256GB Blue — Review & Specs | Pricepect | Pricepect

Home Flash Memory SticksZarmst USB-C 4-in-1 Flash Drive 256GB Blue

Zarmst USB-C 4-in-1 Flash Drive 256GB Blue — image 1

Zarmst

Zarmst USB-C 4-in-1 Flash Drive 256GB Blue

Expert Review Analysis

The ZARMST 256GB 4‑in‑1 Flash Drive is a compact, multi‑connector external storage device that works with iOS, Android, Windows and macOS via Lightning, Micro‑USB, USB‑C adapter and USB‑A/3.0. It includes an app for encryption, fingerprint unlock and one‑click backups, but real‑world transfer speeds and heat issues have drawn criticism.

✓ Best for: The ZARMST flash drive is best suited for users who need cross‑platform storage without carrying multiple adapters, such as iPhone owners backing up photos via the companion app, Android power users who want quick OTG file swaps, and PC/Mac users seeking a portable 256 GB expansion for media files.✗ Not ideal for: It is not ideal for users who require consistently high transfer speeds, need to use the drive with phones that have protective cases, or demand guaranteed data integrity for critical large‑capacity storage.

Pros

✓Four-in-one connector design supports Lightning, Micro USB, USB‑C adapter, and USB‑A/3.0, eliminating the need for separate adapters across iOS, Android, and PC.
✓Compact, lightweight form factor (≈1.13 oz, 1.69 × 0.87 × 0.2 in) with sliding connectors that protect the ports during transport.

Price History

Current

$24.99

Average

$24.25

Lowest

$17.99

Highest

$27.99

Price trend (90d):0.0%

Best Seller Rank History

Now#49Best#21Worst#149 +100

Lower = better sales rank

Rating Trend

Rating4.0/ 5Reviews8,213+5,263 reviews +0.20

Specifications

Connectivity

Connector TypesLightning, Micro USB, USB-C, USB-A (USB 3.0)

USB StandardUSB 3.0, USB 2.0, Micro B

Supported PlatformsiPhone, iPad, Android (OTG), PC, Mac

Design

Height5.08 mm mm

Width22.10 mm mm

Length42.93 mm mm

Weight32 g g

MaterialAluminum frosted

Features

EncryptionEncrypted storage via app

Fingerprint UnlockFingerprint unlock via app

General

BrandZarmst

ManufacturerZARMST

Model Name256GB 4-in-1 Flash Drive

ColorSky Blue

Performance

Read Speed (USB)Up to 80 MB/s MB/s

Write Speed (USB)Up to 30 MB/s MB/s

Read Speed (USB, Real-world)20-40 MB/s

Write Speed (USB, Real-world)15-20 MB/s

Read Speed (Lightning, Real-world)20-23 MB/s

Ports

Port Types4 ports: Lightning, Micro USB, USB-C, USB-A

Software

Companion AppEasyFlash Pro app for file management, backup, encryption

Storage

Capacity256 GB GB

Security

EncryptionAES‑256 encryption with fingerprint unlock via EasyFlash Pro app

Compatibility

Supported PlatformsiPhone, iPad, Android OTG (Micro‑USB/USB‑C), Windows PC, macOS

Interface

USB VersionsSupports USB 3.0, USB 2.0, and Micro‑B standards

Physical

Connector MechanismSliding connectors that protect ports when not in use

Dimensions & Weight

Height0.2 inches

Width0.87 inches

Depth1.69 inches

Research Sources

bestviewsreviews.com

bestviewsreviews.com

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User Reviews

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4.0

(8,213 reviews)

$24.99$27.9911% off

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A-Sky Blue256GB

Flash Memory Sticks

✓

Companion app (EasyFlash Pro/LUV‑Share) provides on‑device encryption, fingerprint unlock, and one‑click backup for iOS files.

✓USB 3.0 interface delivers up to 80 MB/s advertised read speed and stable transfers for large media files on Windows/Mac.

✓Plug‑and‑play operation on Android and PC without requiring additional software.

Cons

✗Real‑world transfer speeds often fall to 20‑40 MB/s read and 15‑25 MB/s write, considerably slower than the claimed 80/30 MB/s.
✗Device can become noticeably hot during sustained file transfers, potentially affecting both the drive and the host phone.
✗Some users report incompatibility when the flash drive is used with phones that have protective cases installed.
✗Questions have been raised about the actual usable capacity of the 256 GB flash memory, with concerns over data reliability.
✗The sliding connector mechanism may feel flimsy over time, leading to durability worries.

From Expert Reviews

Praised by Experts

✓Versatile 4‑in‑1 design praised for eliminating adapters and working across iOS, Android, and desktop platforms.
✓Compact thumb‑drive size with hinge/sliding mechanism highlighted as attractive and portable.
✓Security‑focused app offering encryption and fingerprint unlock noted as a differentiating feature.
✓One‑click iOS backup functionality described as fast and simple for non‑technical users.

Criticized by Experts

✗Professional reviewers criticize the actual transfer speeds as sub‑par compared to the advertised specifications.
✗Heat buildup during transfers is highlighted as a significant drawback that may affect device safety.
✗Compatibility problems with phones that have protective cases are noted as a usability issue.
✗Build quality concerns, especially the durability of the sliding connector, are mentioned by reviewers.
✗Skepticism about the true 256 GB usable capacity and potential data loss risks is raised by experts.

From User Reviews

Users Love

✓Everyday users appreciate the ability to transfer large HD photos and videos quickly via USB 3.0 on a PC or Mac.
✓Broad compatibility across iPhone, Android, and computers is frequently praised for eliminating the need for multiple drives.
✓The included app’s one‑click backup feature is highlighted as convenient for backing up phone media.
✓Android users value the plug‑and‑play experience that requires no additional software installation.
✓The small size fits perfectly into standard USB ports without obstructing other connections.

Users Complain About

✗Consumers report that file transfers often take more than 20 seconds per file, indicating slower real‑world performance.
✗The drive tends to get hot during use, which some users say can also cause their phone to heat up.
✗Phones with protective cases sometimes cannot accommodate the connector, leading to failed transfers.
✗Lack of a clear manual or setup guide leaves some users confused about how to use the sliding connectors.
✗Several users suspect that the advertised 256 GB capacity is not fully usable, raising concerns about data reliability.

Expert Opinion

Professional reviewers commend the ZARMST drive for its versatile 4‑in‑1 connector layout, compact thumb‑drive form factor, and the security‑focused app that adds encryption and fingerprint unlocking. However, they criticize the gap between advertised and real‑world speeds, heat generation during transfers, case‑related compatibility issues, and raise doubts about the true usable capacity and overall build durability.

What Users Say

Everyday users love the convenience of a single drive that works across iPhone, Android and computers, especially the one‑click backup app and the ability to move large media files via USB 3.0. Recurring complaints focus on slower-than‑expected transfer speeds, the device heating up, incompatibility with phones in cases, and uncertainty about whether the full 256 GB is actually usable.

Common Complaints

Common recurring issues include slower real‑world read/write speeds than advertised, noticeable heating during transfers, incompatibility with phones in protective cases, and doubts about the actual usable 256 GB capacity.

How It Compares

vs. Generic 4-in-1 iPhone Flash Drive

Advantages

✓Offers similar multi‑connector layout at a lower price, providing basic cross‑platform storage without premium app features.

Disadvantages

✗Generally slower read/write speeds and lacks built‑in encryption or fingerprint security, making it less suitable for sensitive data.

Choose the ZARMST if you need built‑in encryption and a dedicated backup app; choose a generic 4‑in‑1 drive for a lower‑cost, basic storage solution.

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