Selling a gift from work, worried about scammers.

Hey All,

So I have sold some items on vinted before, but they were quite a bit less in value so I wasn't overly worried about getting scammed by a purchaser.

The item i'm selling is a Brand New Apple product, still sealed in its box. I have put it up for a 2/3rds of the cost brand new from a shop.

I'm a little worried about the buyer saying the device is faulty or something to get the item for free.

Any advice on what precautions I can take to avoid potentially getting scammed?