> make sure it is factory sealed and not counterfeit

Hah. I bought an Apple Pencil from BB. Shrink-wrapped in the box. I get home, the battery won't charge. I figured out from the S/N that someone had bought a new pencil, put their dead one in the box, shrink-wrapped it, returned it, BB put it back into stock, and I ended up with it.

Fortunately, BB replaced it for me, but I've never had this issue with a single Amazon item I've purchased and I've done a lot more shopping from Amazon than BB.