I see this as mere marketing strategy. Since I can download any wallet on my phone there is no reason to buy Samsung s20 just for the inbuilt wallet, it does not make sense to me. It would have made sense if it was to earn free coins from it. Maybe minable on the phone and some amount can be mined monthly. This will make a lot of people rush at it.
It is obvious that BNB is a great project with a financially strong backing of a hard working team. I know and believe in the next five years, if they maintain their integrity and hard work, they will not only be at the top but the most respected coin ever. I haven't seen any other project this cool.