[mothered]

High end samsung phone & similar weight item worth a lot less with similar dimensions

Do you happen to know their specific weights?

I'm just trying to establish the best method suited to the Item(s) In question.

500g and 478g

Thanks for that.

There are a number of methods that can be used- wrong Item received, sealed box and (obviously) DNA. You can also box them by adding a weight substitute. Name the company and we'll work from there.