Zarmst USB-C 4-in-1 Flash Drive 256GB Blue
Score: 69/100
SanDisk Phone Drive 128GB
Score: 74/100Rankings
The SanDisk 128 GB Phone Drive for Android provides dual-ended USB-C/A connectivity and convenient backup software for Android devices. Its Android-centric features and lack of rugged specifications may limit appeal to non-Android users. Best suited for Android smartphone and tablet owners needing portable, on-the-go storage.
The ZARMST 256 GB 4-in-1 flash drive offers a versatile multi-connector design and an encryption app, making cross-platform storage convenient. However, its real-world transfer speeds fall short of claims and it can become hot during use. Best suited for users needing occasional backups across devices.
| Attribute | | |
|---|---|---|
256 GBbest | 128 GB | |
80 MB/s | 100 MB/sbest | |
30 MB/s | 80 MB/sbest | |
| ↓ lower better | 32 g | 13.6 gbest |
— | 2 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 256 GB | 128 GB |
Performance(2) | ||
Read Speed (MB/s) | 80 MB/s | 100 MB/s |
Write Speed (MB/s) | 30 MB/s | 80 MB/s |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 3.2 Gen 1 |
Interface | Lightning, Micro USB, USB-C, USB-A | USB Type-C, USB Type-A |
General(1) | ||
OS Compatibility | iPhone, iPad, Android (OTG), PC, Mac | Android, Windows 10+, macOS 10.9+ |
Build & Design(3) | ||
Weight (g) | 32 g | 13.6 g |
Dimensions (L×W×H) (mm) | 42.93×22.10×5.08 mm mm | 50.0×15.5×8.6 mm mm |
Material | Aluminum frosted | Metal |
Software(1) | ||
Included Software | EasyFlash Pro | Memory Zone app, RescuePRO Deluxe |
Products in the top-left offer the best value (high score, low price).
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.
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.
Professional editors describe the SanDisk Phone Drive as a convenient, portable storage solution that excels in Android environments thanks to its fast read performance, dual-ended connectors, and bundled backup and recovery software.
No direct user reviews were found in the research, but product listings indicate strong demand and suggest that consumers value the plug-and-play backup capability and fast read speeds for mobile workflows.
