SanDisk Ultra Fit USB 3.1 Flash Drive review

The USB storage device has entered the market and hit the market with storm leaving behind the traditional disk. There is almost no CD/DVD ROM, and the Blu-Ray has just vanished and only seen in PlayStations. Laptop and desktop are shipped with the max possibility of USB. Time flies and technology changes rapidly over time. We just unboxed the SanDisk Ultra Fit USB Flash drive, and it’s worth checking.

SanDisk Ultra Fit USB 3.1
SanDisk Ultra Fit USB 3.1

Build of the SanDisk Ultra fit USB 3.1

If you have the latest 1 rupee Indian coin, the pen drive fits in that whole diameter easily. To get the judgement of the height, width and thickness see the images. The depth is precisely the size of the USB 3.0 port just tapering at the ending which gives the pen drive a grip to hold and eject it,

SanDisk Ultra Fit USB 3.1

The whole construction of the pen-drive is a uni-body poly-carbonate construction which is good quality polycarbonate. In case if you are worried about the system with no earthing case scenario then you don’t need to worry as such due to the construction of pen-drive. Overall a perfect pick to the build quality and selection of the design by the SanDisk team.

 SanDisk Ultra Fit USB 3.1
SanDisk Ultra Fit USB 3.1


Indeed overall things come to exact performance score and if you notice the packing, it says 130 MB/s. They have not written if its write speed or read speed. Today we are going to find that out. Initially we started with CrystalDisk Mark benchmark which is personally our favorite but before to it let’s check out the properties of the disk. Out of the box when you plug in how much space we get. The model which we have is a 64 GB variant.

SanDisk Ultra Fit USB 3.1 Disk Properties

If you are thinking what’s occupying the 11.6 MB of space then it’s the setup for SanDisk Disk Secure Access and Backup to cloud guide. So it’s clear overall we get 57.2 GB of usable storage as Fat32 default. Just use it as NTFS in case of large file or if you are planning to make it bootable windows pen drive.

Let’s come to the point of the CrystalDisk mark benchmark which you must be waiting. We Ran it couple of times and here are the results for SanDisk Ultra Fit USB 3.1

SanDisk Ultra Fit USB 3.1   CrystalDiskMark Benchmark score
SanDisk Ultra Fit USB 3.1 CrystalDiskMark Benchmark score

So if you notice the 130 MB/s mentioned on the packing was the Read speed and not write speed. It’s not the exact speed but again we tested through the USB hub because not all users will be using the pen drive at the ideal situation. So we are keeping the review fair. If you think how much will a file take to copy see the screenshot below.

SanDisk Ultra Fit USB 3.1
SanDisk Ultra Fit USB 3.1 Copying file speed.

We got roughly 62.2 MB/s as the Max Speed while copying a file. I think it’s pretty good. Roughly 18 seconds to copy 1 GB file if there is single 1 GB file.


You get a wide variety of storage from 16GB to 128GB, In India we don’t get the 256GB variant. It ranges currently in Dec 2018 on Amazon India from Rs 470 to all the way to Rs 2,400 for 128GB. For a matter of fact all these variant will have constant speed as claim by SanDisk. You should buy one for sure and we definitely recommend it.

SanDisk Ultra Fit USB 3.1

Rs 1029 /- for 128GB





Value For Money



  • Tiny form factor
  • Good Performance
  • Disk Secure option
  • All storage with same speed.


  • None