Initially, I had the corresponding charger in the past, and it is heavier than this one. I doubt very much about its authenticity.

The worst part is that one morning I woke up and saw a strange sign on my phone (I had left it to charge) and there is a possibility that it caused damage (!). The charger no longer charges it at all, and the phone (relatively new S23 Ultra) only charges with other chargers, and not on fast charge. Stay away as much as possible.