[Green314]

Either of the two can be circumvented, but If It's solely a signature on delivery, then you can simply sign a fake name.
the phone weigh 6.63 oz, idk about the box

The box Is Irrelevant.
188 grams Is a little too heavy for the missing Item method. You can box them, by adding a weight substitute that's equivalent to the phone. Alternatively, If only a signature Is required on delivery, you can opt for the DNA.

Why would the weight of the box irrelevant? I thought they would weigh the package and not only the product.