If you use Calculated (rather than Flat Rate) shipping your shipping fee will show as the exact cost to the doorstep of your customer.
This is important because package services vary in cost with destination as well as with dimensions and weight.
And for a high value/high fraud item like a phone, you MUST use tracking.
I would also opt for Signature Confirmation of delivery, which means the carrier has the recipient (any adult) sign for the phone before handing it over. EBay only requires this on items valued over (I think) $650, but it tells a crook that he has eyes on him and makes an honest buyer (by far the majority) feel protected.
There is also a "No Safe Drop" option, which is free, when you are making the label. This means the carrier must not leave the phone on the porch or in the mailbox.
For most products none of this is necessary, but phones being offered by new sellers are the most common "help I got scammed" posting here on the Boards.
