Flowable composites differ from nanofilled composites in all aspects except:
Flowable composite have lower filler content and consequently inferior physical properties such as wear resistance and strength compared to other composites with higher filler load. They also exhibit higher polymerization shrinkage.
Note: Filler loading of nanofilled composite is 60% by volume and 78% by weight
Flowable have a higher filler content
Flowable have lower wear resistance
Flowable have higher polymerization shrinkage
Flowable have lower strength