
SanDisk Ultra 128GB Red
Score: 38/100
SanDisk Ultra Fit 32GB
Score: 44/100Rankings

The Ultra Fit 32 GB drive is an ultra-compact, plug-and-stay flash drive with fast read performance and built-in encryption, ideal for static installations like laptops or car audio. Its plastic build and occasional heat limit suitability for heavy-use scenarios.

The Ultra 128 GB USB 3.0 flash drive offers solid read performance and built-in encryption in a compact retractable form factor, targeting everyday users. Write speeds lag behind the advertised maximum, and the slider mechanism may collect dirt over time.
| Attribute | ![]() | ![]() |
|---|---|---|
128 GBbest | 32 GB | |
130 MB/sbest | 130 MB/sbest | |
100 MB/sbest | 50 MB/s | |
1 years | 5 yearsbest | |
| ↓ lower better | 13.64 g | 1.36 gbest |
| ↓ lower better | 10.41 mmbest | 29.72 mm |
| ↓ lower better | 21.59 mm | 14.22 mmbest |
| ↓ lower better | 56.09 mm | 5.08 mmbest |
Click an attribute name to sort · Green = best, red = worst (relative to this comparison)
| Attribute | ![]() | ![]() |
|---|---|---|
Storage(1) | ||
Storage Capacity (GB) | 128 GB | 32 GB |
Performance(1) | ||
Write Speed (MB/s) | 100 MB/s | 50 MB/s |
Connectivity(1) | ||
USB Interface | USB 3.0 | USB-A 3.2 Gen 1 |
Warranty & Support(1) | ||
Warranty Period (years) | 1 years | 5 years |
Compatibility(1) | ||
Compatible Operating Systems | Windows, macOS, PlayStation, Xbox | Windows 7/8/10/11, macOS 10.9+, Linux, in-car audio, media players |
Physical(4) | ||
Weight (g) | 13.64 g | 1.36 g |
Length (mm) | 10.41 mm | 29.72 mm |
Width (mm) | 21.59 mm | 14.22 mm |
Height (mm) | 56.09 mm | 5.08 mm |

Products in the top-left offer the best value (high score, low price).

Reviewers note reliable read speeds and security software but point out the slower write performance and lack of ruggedness compared to higher-end models.
Consumers appreciate the quick reads and encryption, yet many complain about slow writes and occasional file-corruption issues.

“Transfers a full movie in under 40 seconds”

“Great for backups and school projects”

“Love the SecureAccess software”




Professional reviewers praise the promised read speeds and ultra-small form factor but criticize the plastic build and throttling of write performance under load.
Users love the tiny size and speed for in-car and laptop use, though many note heat and occasional write-speed drops.