
Galaxy S26 Ultra gains four-layer cooling with added thermal paste while preserving high repairability
A PBKreviews teardown reveals the Galaxy S26 Ultra uses a four-layer cooling stack (vapor chamber, graphite pad, thermal pads, and thermal paste)—an upgrade over the S25 Ultra’s first three components. The added thermal paste improves heat transfer, and despite a thinner chassis, the phone maintains a 9/10 repairability score; pre-order perks are also highlighted as the window closes soon.





