The F400-HFR is for the production of large parts where speed is more important than detail. It features a .8mm nozzle compared to the F400-S .4mm nozzle (and is unable to recreate small details in your printer).

The F400-HFR prints a maximum .5mm layer height compared to the F400-S maximum layer height of .3mm.

The HFR has a max travel speed of 500mm/sec compared to the F400-S’s 250mm/sec.