wherein the conductive portion is connected to the electronic device; the buckling grooves and the buckles are conductive such that the buckles are buckled to the bucking grooves in assembly; the auxiliary conduction portion with {TAIL ~ the conductive portion} can measure data so as to increase {HEAD ~ the accuracy} in measurement; the processor can measure physiological data through the conductive portion and the data is displayed on the display; the electronic device transfers data wirelessly 
wherein the conductive portion is connected to the electronic device ; the buckling grooves and the buckles are conductive such that the buckles are buckled to the bucking grooves in assembly ; the auxiliary conduction portion with { TAIL ~ the conductive portion } can measure data so as to increase { HEAD ~ the accuracy } in measurement ; the processor can measure physiological data through the conductive portion and the data is displayed on the display ; the electronic device transfers data wirelessly
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