SanDisk Ultra Flair 256GB
Score: 74/100
Samsung USB-C Flash Drive 512GB Gray
Score: 84/100Rankings
The Samsung Type-C 512 GB provides 400 MB/s reads and 110 MB/s writes in an ultra-compact USB-C form factor with waterproof and shock-proof design. It is limited to USB-C connectivity and lacks a protective cap. Suited for mobile professionals requiring high capacity and portability.
The SanDisk Ultra Flair 256 GB USB-3.0 flash drive offers fast 150 MB/s read speeds in a sturdy metal case with built-in password protection. Its write performance is unspecified and it only features a USB-A connector, requiring an adapter for USB-C devices. Ideal for users who prioritize speed and durability on traditional laptops.
| Attribute | | |
|---|---|---|
256 GB | 512 GBbest | |
150 MB/s | 400 MB/sbest | |
— | 110 MB/sbest | |
| ↓ lower better | 4.5 g | 3.4 gbest |
5 yearsbest | 5 yearsbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 256 GB | 512 GB |
Performance(1) | ||
Read Speed (MB/s) | 150 MB/s | 400 MB/s |
Connectivity(2) | ||
USB Version | USB 3.0 | USB 3.2 Gen 1 |
Interface Type | USB Type-A | USB‑C |
Build & Design(2) | ||
Weight (g) | 4.5 g | 3.4 g |
Dimensions (L×W×H) (mm) | 42.93×12.95×7.11 mm | 33.78×16.0×2.54 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers commend the Ultra Flair 256GB for its high read speed, rugged metal construction, and SecureAccess encryption, noting it handles 4K movie transfers in seconds. However, they criticize the lack of a USB-C option and the omission of concrete write-speed data, which leaves part of the performance picture incomplete.
Everyday users generally express satisfaction with the drive's speed, durability, and compactness, frequently highlighting the convenience of password protection. While no major complaints dominate, users note the missing cap and the need for an adapter on USB-C-only computers.
Retailer editors such as B&H Photo and Staples praise the drive's multi-proof construction and its advertised 400 MB/s read performance on USB-C 3.2 Gen 1, emphasizing fast and efficient data transfer for high-capacity needs. However, professional reviews are limited, leaving independent verification of real-world endurance and write performance scarce.
Everyday users consistently highlight the drive's high read speed, tiny form factor, and rugged, water- and shock-proof build as major positives for on-the-go use. The most common criticism revolves around the comparatively slow write speed and the absence of a protective cap.
