A smart card is provided, including an external connector formed of an insulating support and a plurality of external metal contact pads arranged on an external face of the support, and a card body having a housing in which the external connector is arranged and includes an electronic unit and/or an antenna electrically connected to a plurality of internal metal contact pads arranged underneath the external connector and respectively aligned with the external pads. The external pads are respectively electrically connected to the internal pads by a plurality of metal parts, which are each at least partially formed by a solder material and which traverse the insulating support through respective apertures. The metal parts are respectively covered by the external pads, which close the apertures on the external face of the support, and respectively form connecting bridges between rear surfaces of the external pads and the internal pads.