The net profit from October to December was 8.46 billion won (7.6 billion dollars), that is, 31% less than a year earlierThe group said in a statement.
"The results of the fourth quarter were affected by a decrease in demand for the memory card used in smartphones and in data centers," said the South Korean giant.
For the year 2018, it announced a net profit of 44.3 billion wons, a rise of 5.1% compared to 2017.
In recent years, Samsung has recorded record results despite a series of reversals, such as the call for review of its Galaxy Note 7 cell phone – the batteries were inflammating – and the sentence of the heir of Samsung Group, Lee Jae -yong, splashed by a great scandal of corruption.
Although the group dominates the global smartphone market with 20% of the parties, it has to face increasing competition, with groups such as Chinese Huawei at the head, who started Apple on Its second place on the world podium, offering quality devices and competitive prices.