JK Shin, head of Samsung Mobile Communications, announced the launch of the new device at a press conference in Seoul. He told reporters that the popularity of four-inch devices in Europe had inspired the new model.
"We'll be launching a 4-inch Galaxy S III on the 11th in Germany," he said. "There's a lot of demand for a four-inch screen device in Europe. Some call it an entry-level device, but we call it 'mini.'"
The latest Samsung offering will buck the trend among high-end Android devices, where products are usually four and a half inches or bigger.
The existing Galaxy SIII boasts a 4.8" screen and 2,100mAh battery and has helped Samsung power to record profits in the last three months. From July-September, the South Korean company is expected to make 8.1 trillion won (£4.5bn), nearly double the 4.25 trillion won recorded a year earlier. The Galaxy SIII was released at the end of May.
However, analysts have predicted that competitive product line-ups could be a risk for the company in the coming months.