At the risk of getting drrred or no s. I post this as no one could or would give me a straight answer. I have cracked it imu is a group of sensors a combination of accelerometers and gyroscopes, sometimes also magnetometers and or compass combined with gps. This is what the tablet needs the have for follow me to work on the P3S. The are a number of apps you can down load to check if a tablet has the sensors. Or if you're buying a new one it's a lot of checking spec sheets.