Uses a parallel interface that can only handle one operation at a time—either reading or writing. This acts as a "narrow, one-way road," where simultaneous tasks like downloading a file while browsing a gallery can cause system stutter. UFS 2.2 (Full-Duplex):

UFS 2.2 is significantly faster and more efficient than eMMC 5.1, offering roughly and superior multitasking capabilities. UFS | eStorage | Samsung Semiconductor Global

Employs a serial interface with dedicated paths for reading and writing. This allows for simultaneous

If you are looking at a specific device, I can check or explain how this will affect gaming performance versus daily tasks . Which eMMC vs SSD vs UFS: Storage Comparison Guide | Flexxon