SanDisk Ultra Dual Drive Go 128GB
Score: 65/100
Samsung FIT Plus 512GB
Score: 86/100Rankings
The Samsung FIT Plus 512 GB flash drive combines a rugged metal case with fast 400 MB/s read/write performance in an ultra-compact USB-A form factor. It excels for users needing large, portable storage and durability, though the lack of USB-C and limited warranty may be drawbacks.
The SanDisk Ultra Dual Drive Go 128 GB combines a USB-A and USB-C connector in a compact swivel design, delivering very fast read performance and convenient Android backup via the Memory Zone app. However, its write speed is modest, it lacks hardware encryption, and the usable capacity is slightly lower than advertised, making it best for casual cross-device file transfers.
| Attribute | | |
|---|---|---|
128 GB | 512 GBbest | |
400 MB/sbest | 400 MB/sbest | |
3 MB/s | 400 MB/sbest | |
5 yearsbest | 1 years | |
| ↓ lower better | 6.5 g | 3.1 gbest |
| ↓ lower better | 44.45 mm | 23.62 mmbest |
| ↓ lower better | 12.19 mmbest | 18.8 mm |
| ↓ lower better | 8.64 mm | 2.54 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | | |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 128 GB | 512 GB |
Performance(1) | ||
Write Speed (MB/s) | 3 MB/s | 400 MB/s |
Connectivity(1) | ||
USB Interface | USB 3.2 Gen 1 | USB-A 3.2 |
Warranty & Support(1) | ||
Warranty Period (years) | 5 years | 1 years |
Compatibility(1) | ||
Compatible Operating Systems | Windows; macOS; Android (OTG) | Windows, macOS, Linux, consoles, smart TVs, car infotainment |
Design(1) | ||
Material | Plastic | Metal |
Physical(4) | ||
Weight (g) | 6.5 g | 3.10 g |
Length (mm) | 44.45 mm | 23.62 mm |
Width (mm) | 12.19 mm | 18.80 mm |
Height (mm) | 8.64 mm | 2.54 mm |
Products in the top-left offer the best value (high score, low price).
Professional reviewers praise the dual-connector versatility and fast read speeds, but caution that sustained write performance falls short of expectations, limiting its suitability for demanding backup or editing tasks.
Everyday users love the convenience of the USB-A/C combo, the keyring loop, and quick read speeds, while many express frustration over slow write speeds and the absence of encryption.
“a lifesaver”
“Highly rated (4.7/5 on Best Buy from over 2,300 reviews)”
“Fast read speeds make transferring photos a breeze”
Professional reviewers praise the FIT Plus for reliable real-world performance and its rugged, ultra-compact design, while noting the absence of a USB-C interface as a limitation in 2026.
Everyday users rate the drive highly for speed, durability and convenience, but complain about inconsistent write speeds on older PCs and the lack of a USB-C connector.
