The step to 3D NAND did not go swimmingly for all manufacturers, but for Sandisk and parent company WD the time is finally ripe to use the third generation BiCS flash memory in products. We tested both Sandisk Ultra 3D as well as the WD Blue 3D and will tell you the differences between the two in this review, as well as whether or not you should purchase them.

To immediately answer the first question: the most important difference between these two products is the sticker that is on them. The SSDs are identical in terms of hardware, are manufactured in the same factory and have the exact same specifications. For now WD, owner of Sandisk since 2015, is still releasing the SSD using both brand names, but it is obvious that this will change in time.