I have manually counted steps and found it be be off about so severely. PLEASE update the firmware so that it is more sensitive and picks up steps. If I don’t swing my arm VIGOROUSLY, the pulse hr does not register a step. For instance. I walked up and down the hallway in my office. (Purposely not holding anything) I counted 93 steps, the pulse HR only registered 18. That is unacceptable. please fix this. If it is not resolved I am getting another brand.