The S123E distinguishes itself through a "no dock" design, allowing users to connect gaming consoles and other hardware directly via a single Type-C cable. This portability-focused architecture has already drawn praise from Japanese users, who frequently cite the device's lightweight frame as a primary advantage for mobile setups.

Technically, the monitor features a 3:2 aspect ratio with 1920×1280 resolution, offering more vertical screen real estate than standard 16:9 panels. The display covers 100% of the sRGB color gamut and supports HDR, while its fully laminated touch panel maintains compatibility with AES 1.0/2.0 styluses. Beyond visual performance, the unit includes OTG support for peripherals like keyboards and mice, effectively functioning as a mobile workstation. Following its performance on Amazon Japan, the product is now available through Amazon in North America and via the Coupang and Naver platforms in South Korea.