Why the Galaxy Z Fold 9 Ultra Could Make Every Other Foldable Obsolete

Samsung’s Galaxy Z Fold 9 Ultra achieves an ultra-slim 4.1 mm unfolded thickness, making it much more portable.

To reach that profile, Samsung removed the S Pen digitizer, dropping stylus support and some productivity appeal.

The device highlights a central foldable-phone trade-off: thinner hardware versus expected productivity features.

Samsung is still researching thinner digitizer technology, and user feedback will likely shape future foldable designs.