Are shop vacs or cordless floor washers the better wet/dry vac?

They solve different problems. Across the reviewers we read, corded shop vacs (Craftsman, Vacmaster, DeWALT, Stanley) win on raw suction, capacity and durability for sawdust, debris and standing water. Cordless floor washers like the Narwal S20 Pro and Roborock F25 are designed for routine hard-floor mopping, not heavy jobsite cleanup. Pick a shop vac for garages and renovations; pick a floor washer for daily kitchen and tile maintenance.