Redmi Note 9S is actually the rebranded version of Redmi Note 9 Pro. The Redmi Note 9 Pro which we got, will launch with the name Redmi Note 9S in Malaysia.
Our Pro Max will probably launch as Note 9 Pro in other markets.
In India they named it Pro just to create hype. This is leading customers to think that they are getting "Pro" at a lower price than other brands.