The iPhone is also getting a 2TB version! It is reported that Apple abandons TLC and uses QLC: lifespan/performance is lower

July 25 news, according to foreign media reports, Apple may enable larger storage on the 2026 iPhone, which is expected to be 2TB. The latest revelation from the industry chain is that Apple is accelerating the replacement of QLC NAND, thus raising the upper limit of built-in storage to 2TB. As for why QLC is used, it may be related to Apple's cost control. In fact, there was news before that Apple may change the storage capacity (enabled on iPhone 16) and no longer use three-layer cell (TLC) NAND flash memory, but use four-layer NAND flash memory on models with storage capacities of 1TB or more. Cell (QLC) NAND flash memory. Compared with TLC, the advantage of QLC is that each memory cell can store four bits of data, storing more data than TLC when using the same number of cells, or using fewer cells to store more data, which can reduce Cost of production. In addition, QLC flash memory is considered less reliable than TLC flash memory, and the endurance of writing data will be reduced because each cell is written more times because each cell contains one more bit. QLC NAND flash can store 16 different charge levels, while TLC can only store 8 charge levels. When reading data, as the amount of charge increases, the margin decreases, which may lead to increased bit errors due to increased noise. If Apple continues with this plan, users of some versions of iPhone 16 may experience slower data writing speeds than lower-capacity users.

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