- Fujitsu UX-K3 weighs only 634 grams, setting a new global benchmark
- Fujitsu combines carbon fiber and magnesium-lithium for added strength without additional mass
- Laptop’s WUXGA IPS panel delivers accurate colors and minimal glare
Fujitsu has once again entered the record books with the launch of the new UX-K3, a laptop that weighs just 634 grams.
This model now shares the title of world’s lightest laptop along with the 2022 Fujitsu Lifebook WU-X/G2 and the 2024 Dynabook Lifebook WU5/J3.
With this release, all three record holders are Japanese-made and each weighs exactly 634 grams – the lightest laptops ever produced.
The design focuses on weight and durability.
The latest model, UX-K3, joins Fujitsu’s FMV Note U series and, unlike previous versions available only online, will be displayed in retail stores for a hands-on experience.
The FMV UX-K3 maintains its low weight thanks to an unusual mix of materials, as its top panel uses carbon fiber, while the keyboard and base are made of a magnesium-lithium alloy.
Despite the lightweight design, this laptop is built to resist bending during normal use.
The included AC adapter has also been reduced in size and weight, now just 151 grams compared to 280 grams previously.
With these improvements, Fujitsu continues to focus on reducing travel weight for mobile users while maintaining practical usability.
The FMV UX-K3 is powered by an Intel Core Ultra 7 255U processor, featuring a 12-core, 14-thread configuration with integrated Intel graphics and an integrated 12 TOPS-rated AI engine.
This device also comes with 16GB of memory and a 512GB SSD, and uses a 14-inch WUXGA (1920 x 1200) anti-glare display with a 16:10 aspect ratio, offering more vertical workspace than the old 16:9 aspect ratio.
The panel covers the full sRGB color gamut and supports wide-angle IPS technology for consistent colors and brightness at all viewing angles.
Typical brightness reaches approximately 400 nits, allowing visibility in bright office environments while maintaining low reflectivity thanks to the matte finish.
Wireless connectivity includes Wi-Fi 7 and Bluetooth v5.4, while the port layout includes USB Type-C, USB Type-A, HDMI, a microSD slot, and a Gigabit LAN port.
The laptop’s design also includes a Windows Hello-compatible fingerprint sensor and a privacy shutter for the webcam.
The battery life of the Fujitsu UX-K3 laptop is estimated at seven hours during video playback and up to 18 hours of standby.
Priced at approximately 280,280 yen (approximately $1,863) on the FMV store, this device is not a budget laptop, but it is aimed at users who value portability over pure performance.
Fujitsu also introduced the U77-K3, a heavier variant at around 869 grams, which offers a larger battery that supports up to 35 hours of autonomy.
Follow TechRadar on Google News and add us as a preferred source to receive news, reviews and opinions from our experts in your feeds. Be sure to click the Follow button!
And of course you can also follow TechRadar on TikTok for news, reviews, unboxings in video form and receive regular updates from us on WhatsApp also.
