Two of the smoothest reels ever made I think!  They are both brand new and the E7-4 comes with box and owners manual which is the same owners manual that came originally with the E3-4.  I really cannot tell a difference in the two reels,  as they are both very smooth. but one has 7 ball bearings inside and other has 3.  There is one extra spool that will fit both reels that is also brand new.  Thanks for looking  .