Galaxy Book6 is 1.1 millimeters thinner than last year's model at the Ultra tier, a number that sounds trivial until you consider it required redesigning the cooling system around it. The Ultra, Pro, and base Galaxy Book6 all move to Intel's Core Ultra Series 3 processors, built on the 18A process node, which Samsung says deliver up to 60 percent faster CPU performance than the previous generation while somehow fitting into a chassis that measures just 15.4 millimeters thick on the Ultra.
Making that math work meant re-engineering the vapor chamber and fan rather than just shrinking components around a familiar layout. Samsung widened the vapor chamber's surface area and gave the Book6 Pro a vapor chamber for the first time, changes the company says improve cooling efficiency by 35 percent over the prior generation despite the thinner body. The Book6 Ultra also picks up an optional NVIDIA GeForce RTX 5070 or 5060 Laptop GPU, aimed at buyers who want AI image generation and gaming performance the Intel-only Book6 and Pro variants do not offer.
Battery life gets a real jump too, up to 30 hours of video playback on the Ultra and Pro models, about five hours longer than the previous generation, with the Ultra's fast charging restoring 63 percent of a full charge in 30 minutes. Samsung is also pairing the launch with its Galaxy AI features, including cross-device tools like Storage Share and Multi Control that only make sense if you already own a Galaxy phone or tablet, tying the laptop's usefulness more tightly to Samsung's phone ecosystem than to any Windows-specific feature.
The Galaxy Book6 series goes on sale in select markets in late January, with a Galaxy Book6 Enterprise Edition following for managed IT environments in April. Samsung has not confirmed US pricing at launch, so the thinness and cooling claims will have to hold up against a market where Intel's 18A node is showing up across several vendors at once, not just Samsung's.
