The ASUS UX3405 presents a convincing premium ultraportable formula: a 1.28kg aluminium chassis, a high-resolution OLED display and a notably ambitious internal platform. Rather than treating portability as an excuse for modest hardware, ASUS specifies an Intel Core Ultra 9 185H processor, 32GB of RAM and 1TB of NVMe PCIe 4.0 SSD storage. On paper, that is a substantial foundation for demanding multitasking within a compact Windows 11 laptop.
A sharp, fast display
The 14-inch OLED panel combines a 2880 x 1800 resolution with a 120Hz refresh rate. That specification gives the screen a dense canvas and the technical foundation for fluid motion, while OLED establishes the display technology behind it. The 14-inch format keeps the machine physically compact, although it also means the available screen area is inherently limited for buyers whose work depends on maintaining several large windows side by side.
The display is therefore central to the UX3405’s identity. It should appeal to professionals who value visual density and a high refresh rate, as well as anyone seeking a more premium panel specification in a portable Windows machine. The supplied figures support that positioning without requiring claims about colour accuracy, brightness or observed image quality.
Serious capacity in a light frame
The Core Ultra 9 185H processor sits at the top of the stated configuration, supported by 32GB of RAM. That combination should provide considerable headroom for running multiple applications and handling memory-heavy workflows, although the specification alone does not establish application performance. Intel Arc Graphics is also specified, giving the machine a defined graphics solution without changing its clearly productivity-led ultraportable character.
Storage is equally well judged on paper. A 1TB SSD using NVMe PCIe 4.0 technology offers both meaningful capacity and a current high-speed storage interface. Windows 11 is pre-installed, so the core platform is coherently assembled rather than built around a token amount of memory or storage.
Connectivity and mobility
The port selection is stronger than the compact dimensions might suggest: two Thunderbolt 4 ports, one USB 3.2 Gen 1 Type-A port, HDMI 2.1 TMDS and a 3.5mm combo audio jack. Thunderbolt 4 provides two modern high-speed connections, while HDMI gives a direct route to a compatible external display. The compromise is physical rather than conceptual: there is only one USB-A port, and only one HDMI connection, so users with several legacy accessories or direct HDMI displays may need to plan their setup carefully.