Note to headline writer at PC Magazine: While the components in a MEMS gyro are small, they are not in the nano range. MEMS, by definition, can be measured in microns (the acronym stands for microelectromechanical systems).
Here's one way of thinking about the size difference. Let's say my annual income represents one nanometer. A micron, then, would be the amount of money former Enron executive Kenneth Lay reaped from stock sales in 2001. Yes, the difference is that big.