South Korean technology giant Samsung unveiled new, sleeker smartphone models Wednesday priced higher than previous models as artificial intelligence raises component costs.

One of the models resembles a miniature tablet when unfolded.

Samsung, which launched the high-end products in London, aims to reaffirm its dominance in the foldable smartphone market, where it has operated since 2019, ahead of a potential move by U.S. rival Apple this year.

"By setting a new standard for foldables, we are once again advancing the premium mobile experience," said TM Roh, head of Samsung's mobile division.

The most innovative device unveiled Wednesday is the Galaxy Z Fold8. Measuring 4.5 millimeters (0.18 inch) thick when unfolded, it features a 7.6-inch (19.3-centimeter), 4:3 aspect ratio screen optimized for video viewing.