Electronic system including an inhaler device for dispensing a medicament formulation in aerosol or dry powder form and an external device which is configured to receive data communicated from the inhaler device. The inhaler device includes a mouthpiece and a flow rate sensor for sensing a flow rate of an inhalation flow which is caused by a patient upon inhalation through the mouthpiece and in which the medicament formulation is entrained or dispensed. The inhaler device further comprises an actuation sensing device having at least one actuation sensor which is configured to sense preparatory steps of the inhaler device in order to prepare a use of the inhaler device and/or to sense the actuation of the inhaler device in order to dispense the medicament formulation. The actuation sensor and the flow rate sensor are configured to generate sensor signals.