Well of course, Titanium is far stronger than aluminium, so you need to use far less for the same strength as aluminium.Still not sure why you would given the cost difference. It seems you'll see little benefits anyway.
The real news is a 5x optical zoom. But yet again only the ultra gets any attention, the lesser two phones get minimal improvements just the obligatory new SoC. S21+ should be 3x optical zoom and S21 2x optical zoom. No digital zooming rubbish.
Sdcard please!