Has anyone tried to identify the event when the smartwatch is "on hand" and when it is "on the table"? I am unable to use data from the HRM sensor. Raw and processed data is not suitable. The sensor is providing irrelevant data. The accelerometer is also not suitable for the case if the smartwatch is on the table on the train, for example. How quickly (3-5 seconds) to understand that the smartwatch is taken off your hand or on your hand?
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