Hi Sepehr,
Closed loop gyroscopes have better performance and high vibration robustness, but their power consumption is much higher than that of open-loop gyroscopes. BMI088 is a closed-loop gyroscope, while open-loop gyroscopes include BMI160, BMI323, BMI270, etc. You can find IMU product information from https://www.bosch-sensortec.com/products/motion-sensors/imus
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