6 axis:

The InvenSense 6-axis motion sensor series has a 3-axis gyroscope and a 3-axis accelerometer on the same silicon chip. It is the highest performance sensor on the market, with the lowest noise, the best temperature stability, and the highest sensitivity accuracy. These key factors are the key to creating applications such as navigation, imaging, and enhanced realism with the best user experience.

7 axis:

ICM-20789 is an integrated 6-axis inertial device that combines a 3-axis gyroscope, a 3-axis accelerometer and an ultra-low noise MEMS capacitive air pressure sensor in a 24-pin LGA package. This unique 7-axis device provides the performance of discrete components in a single small size for tracking rotation and linear motion and pressure differences with an accuracy of ±1 Pa, which can achieve height measurements as small as 8.5 cm.

9 axis:

InvenSense's 9-axis sensor combines a 3-axis gyroscope, a 3-axis accelerometer, and a 3-axis compass with an on-board digital motion processor™ (DMP™) capable of processing complex MotionFusion algorithms in the same chip.

6 axis:

7 axis:

9 axis: