The cell phone market made up over half the MEMS unit volume in 2015. The low-end smartphones have fewer MEMS, but this segment is growing faster and cannibalizing feature phones. The low-end smartphones also have a growing number of MEMS in their Bill of Materials (BOMs). Unfortunately, growth in the cell phone market has slowed as the market has matured. What will be the next driver of substantial growth for MEMS?