There are no small ones.
The smallest chips are currently 4 nanometers.
At present, the highest commercial chip process in the global smartphone market is the 4-nanometer chip, and there are two models. Ahead of Qualcomm, Mediatek took the lead today in the morning of November 19, 2021 in the United States to release the world's first 4nm (nanometer) chip Tianguet 9000, which is manufactured by TSMC. The other is the Qualcomm Snapdragon mobile 8 platform, which is a 4-nanometer chip manufactured by Samsung. In fact, there are even smaller 3-nanometer chips, but they have been streamed but have not yet been mass-produced for commercial use.