The invention provides a smart pad for detecting a physiological state/movement of a user. The smart pad comprises: a sensing portion, having a plurality of sub-sensing portions, wherein the sub-sensing portions are respectively separated from each other by a plurality of partitions; a channel portion, communicating one opening of each of the sub-sensing portions; and a collection portion, communicating the sub-sensing portions through the channel region. The physiological state/movement is determined according to a fluid state change in the sub-sensing portions, which transmitted to the collection portion through the channel portion. The partitions do not include any fluid state change corresponding to the physiological state/movement.本發明提供一種智能墊,用以判斷一使用者之生理狀態或動作,智能墊包含:一感應區,具有多個子感應部,子感應部間藉由多個隔離部以彼此相分離;一通道區,連通於子感應部;以及一匯集部,子感應部內之流體,通過通道區連通於匯集部,其中子感應部內流體,對應生理狀態或動作所產生之狀態改變,藉由通道區,傳遞至匯集部;其中,隔離部不產生對應生理狀態或動作之狀態改變。