That's not what I meant.
Which one is easier for you to get a warranty replacement. Does either one require you to ship the drive to an out of country destination or absolutely require the original invoice (I always lose those). Things like that.
And , unless your country is different, the WD Blue 3d should have a 5yr warranty and the SU800 a 3yr.
As far as i know, mounting plates are sold separately if your case does not have a spot for a 2.5" drive.
For me WD is easier. Fill out the RMA info and ship the drive a few states away. Don't need a receipt or invoice and they ship me a replacement.
Adata needed a receipt for a lifetime warranty product (SD card) and I had to pay shipping to them and back to me. I haven't bought Adata since.