All desktop hard drives weight roughly the same?

[adobian]

Are all 3.5" drive with roughly the same weight or some would weight much lighter than others?

I was going to use a laptop hard drive for portability but space vs price limitation made me look more toward a desktop hard drive.

Just wondering.

 

[john4200]

No, the weight increases with the number of platters. You will commonly find 3.5" HDDs with 1 to 5 platters.

 

[tgrimley]

depends on your definition of roughly. I'd say yes, they do, others would say no.

 

[john4200]

Here are a couple numbers:

Samsung HD322GJ : 430g

Hitachi HDS722020ALA330 : 740g

If anyone can find any 3.5" HDDs less than 430g or greater than 740g, I'd be interested.