The side by side images of Galaxy S23 Ultra & S24 Ultra smartphones have been leaked online. The leaked image indicates some changes to the S24 Ultra, which you can see in above image. The black one is Galaxy S24 Ultra, and it carries new bottom speakers. The S Pen slot has also changed with more flat shape.
Fuether, now there are two mic holes on the bottom side. It may provide better voice quality in calling. The upcoming device is also less curvy than the previous models. Along with it, S24 Ultra to come with more premium Titanium body.