Fujitsu has launched the UX-K3, a new laptop weighing just 634 grams, tying for the title of the world's lightest ever built. This Japanese-designed device features a sleek carbon shell and a full-day battery life. It is powered by Intel's Core Ultra 7 255U chip, which balances efficiency for light and heavy tasks.
The Fujitsu UX-K3 marks the latest in a series of three Japanese laptops that share the record for the world's lightest at 634 grams. Announced on October 19, 2025, the UX-K3 pushes the boundaries of laptop design with its ultra-lightweight construction and innovative features.
Key highlights include a carbon shell that contributes to its record-breaking weight, ensuring portability without compromising durability. The laptop promises a full day of battery life, making it ideal for professionals on the move. At its core is Intel's Core Ultra 7 255U processor, described as offering balanced efficiency across light tasks like web browsing and heavier workloads such as video editing.
This launch continues Japan's tradition of engineering excellence in ultralight computing. The UX-K3 joins two previous models in achieving this weight milestone, demonstrating ongoing advancements in materials and power management. While specific pricing and availability details remain undisclosed in initial reports, the device underscores Fujitsu's focus on sustainable, efficient technology.
TechRadar highlights how the UX-K3 'shatters limits of laptop design,' emphasizing its potential to redefine ultraportable standards.