Difference in drive across production years

What would the differences be in the same model drive (My Passport 1 TB, 5400 HHD) produced in 2013 and another produced in 2016? That is, why replace? Wear and tear obviously take their toll. Aside from that, however …


It’s hard to identify specifics about those units as the information about the internal drive is not fully clear. I’ll say that the firmware information on the units might be different or USB drivers.