Choosing an External Hard Drive or Portable

Hello,
I would like to compare or see side-by-side or have explained to me the difference of the 4tb drives listed below. Also, do they have different backup systems?
Is a 4tb desktop drive more reliable, sturdy or better than using a portable drive?
I always wonder based on the size of the drive versus the size of the casing it is in.
Does the Passport portable have the same backup system available as a desktop model?

Desktops

  1. My book desktop
  2. Essential
  3. Easy Store
  4. Elements

Portables
WD My Passport portable 4tb
WD My Passport Ultra Portable 4tb
WD Elements Portable 4tb

Thank you,
Elisa

The best answer is “you usually get what you pay for”