Korean website The Bell reports that Samsung are working on two sizes, one which will have a 6.7-inch screen like the Galaxy S10 5G and a smaller one.
They also claim that the reduce-sized handset will only be available in Europe in August.
However, the South Korean firm could also end up releasing a larger model of the standard Galaxy S10.
Nothing has been confirmed by Samsung as of yet, bt there have been plenty of rumours swirling around about the highly-anticipated smartphone.
It was recently claimed that it will be Samsung's first buttonless handset.
According to ET News, the device will have no power button, volume rockers or Bixby key.
It was previously reported that it's expected to feature "super fast 5G", making it capable of downloading 4K videos, next year.
US mobile network AT&T announced: "We're pleased to announce we're working with Samsung to bring another standards-based 5G device to AT&T customers in 2019.
"This smartphone from Samsung will be able to access both 5G mmWave and sub-6 GHz. We expect to offer this device in the second half of 2019."
It's also believed to have the smallest bezels ever.
As companies behind major devices work to eliminate them, it appears the tech giant could take the lead based on a previously leaked screen protector.
In a clip shared by Ice universe, the screen protector seems to have almost zero bezel on any edge of the device.
While they are technically still there, they're so slim that they're essentially non-existent.
Although the report isn't definite, it does fit in with a design Samsung itself showed off.
In December, the firm unveiled four new screen designs, and one of these - branded the 'New Infinity' - seemingly had no bezels, which suggested it could be on the cards for the new model.