Method of determining a position (x; x, y) of a sensor device movable relative to a magnetic source, or vice versa; the sensor device comprising at least two magnetic sensors; the method comprising the steps of: a) obtaining a plurality of magnetic sensor signals from said magnetic sensors; b) determining or estimating the position of the sensor device based on said plurality of sensor signals or signals derived therefrom; wherein step b) comprises: determining said position (x; x, y) using an artificial neural network; the artificial neural network being a recurrent neural network trained for determining said position using at most three hundred (300) trainable parameters per degree of freedom. A position sensor system. A position sensor device.