UFS uses a serial interface, allowing it to send and receive data at the same time (full-duplex) [2]. Think of this as turning a one-lane road into a two-lane highway.
Practical numbers (typical ranges, vendor-dependent): ufs 22 vs emmc 51 link
Flash storage slows down as it fills up. eMMC has less sophisticated management algorithms. UFS is designed better to handle data degradation, meaning your phone will remain fast for longer before it starts to feel "old." UFS uses a serial interface, allowing it to