A wireless scale apparatus can include a load sensor operable to be directly coupled with a portion of a load receiving element. A printed circuit board (PCB) in communication with the load sensor is operable to: measure load data from the load sensor, determine a load measurement from the load data received upon the load sensor, and transmit the load measurement.

A weight measurement system includes: a force sensor attachable to a gripping part of a carrying arm carrying an article by gripping; a first obtaining section configured to obtain an output signal from the force sensor when the gripping part that is gripping the article moves three-dimensionally; a weight deriving section configured to derive weight data indicating a weight of the article by processing the output signal; and an output section configured to output the weight data to an external entity.