Comparison of DIVIMP and EDGE2D-EIRENE tungsten transport predictions in JET edge plasmas

•Monte Carlo DIVIMP and multi-fluid EDGE2D-EIRENE treatment of tungsten were compared.•Tungsten density predictions by DIVIMP and EDGE2D-EIRENE agree within a factor of 2.•DIVIMP predicts consistently 50% more tungsten than EDGE2D-EIRENE in attached plasmas.•The discrepancy is due to the bundling of tungsten charge states to 6 fluid species.•Using 22 tungsten species yields accurate tungsten charge but causes numerical errors.