How Samsung slimmed down Galaxy Z8

LONDON — Samsung Electronics has rebuilt its Galaxy Z8 foldables around titanium and silicon-carbon, betting that a new display structure and battery can make them thinner, tougher and longer-lasting.

The overhaul goes beyond individual components, with Samsung redesigning the display, hinge, battery and thermal management system as an integrated platform rather than upgrading each part separately.

"You cannot create meaningful innovation by improving just one component," Moon Sung-hoon, head of ...