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Bosch Sensortec


BMI270, an ultra-low power smart Inertial Measurement Unit (IMU) that offers a strongly improved accelerometer offset and sensitivity performance, enabled by the newest Bosch MEMS process technology.


  • Newest member of Bosch’s next-generation BMI260 family of IMUs
  • Optimized for wearable and hearable applications
  • Strongly increased system battery life
  • Available with context and activity recognition or gesture recognition


BMI270 is an ultra-low power IMU optimized for wearable applications. The IMU combines precise acceleration and angular rate measurement with intelligent on-chip motion-triggered interrupt features. The 6-axis sensor combines a 16-bit triaxial gyroscope and a 16-bit triaxial accelerometer in a compact 2.5 x 3.0 x 0.8 mm³ LGA package.


Activity Recognition


The BMI270 is a member of Bosch Sensortec’s BMI260 family of IMUs, targeting fast and accurate inertial sensing in wearable applications. BMI270 features Bosch’s automotive-proven gyroscope technology with an improved accelerometer. Significant improvements in BMI270 include, but are not restricted to, the overall accelerometer performance, i.e. an extremely low zero-g offset and sensitivity error, low temperature drifts, robustness over PCB strain and a low noise density.

BMI270 features the industry’s first self-calibrating gyroscope using motionless CRT (Component Re-Trimming) functionality to compensate MEMS typical soldering drifts, ensuring post-soldering sensitivity errors down to ± 0.4%.

Bosch Sensortec's BMI270 includes intuitive gesture, context and activity recognition with an integrated plug-and-play step counter/detector, which is optimized for accurate step counting in wrist-worn devices. The IMU is also well suited for other types of wearable devices, such as hearables, smart clothes, smart shoes, smart glasses and ankle bands.


  • Wearables
  • Hearables
  • Smart clothing
  • Augmented / virtual reality (AR/VR)


Gesture Recognition