The present disclosure relates to a medicament delivery device (1) comprising: a main housing (3) arranged to accommodate a medicament container, an activation button (5) linearly displaceable from a first position relative to the main housing (3) to a second position, whereby a medicament administration procedure for expulsion of medicament from the medicament container is initiated, a first sensor (15) arranged to detect a medicament administration procedure initiated by the activation button (5), a storage unit (19) containing remaining dose data, and processing circuitry configured to update the remaining dose data based on detection of a medicament administration procedure by the first sensor (15), wherein the medicament delivery device (1) is arranged to enable presentation of the remaining dose data.
