I just purchased an arduino NiclaSense board, while learning to use EdgeImpulse.
The board includes the BHI260AP which supports self-learning AI for fitness tracking activities.
It is not clear to me if the model which I can create by using EdgeImpulse can run on the Bosch AI sensor, or on the main nRF52832 MCU.
When you upload the Edge Impulse model to the NiclaSense, it will run on the nRF52832. The SDK for the BHI260AP is not open source and has not been released for Arduino, so it will be difficult to program the sensor directly without paying Bosch. See this thread for more information: Program BHI260AP directly on the Nicla Sense ME