Price: $1,179.99
(as of Jul 17, 2026 13:10:53 UTC – Details)
ASUS Vivobook S 14 OLED Slim Laptop (M5406WA-AH94): A Detailed Product Review
The ASUS Vivobook S 14 OLED Slim Laptop, model M5406WA-AH94 in Cool Silver, represents a compelling entry in the modern thin-and-light laptop category. Powered by the AMD Ryzen AI 9 365 processor with 10 cores, equipped with 24GB of memory and a 1TB SSD, and finished with a customizable RGB keyboard, this machine is engineered to blend productivity, portability, and next-generation AI features. Below is a detailed breakdown of its design, performance, display, input experience, and connectivity.
Design and Portability
True to its name, the Vivobook S 14 OLED is remarkably slim and light. It measures just 0.63 inches in thickness and weighs only 2.87 pounds, making it an ideal companion for students, professionals, and creatives who are frequently on the move. The Cool Silver chassis presents a sleek, minimalist aesthetic that avoids unnecessary bulk while maintaining a premium feel. Its compact footprint does not compromise structural rigidity, and the laptop is clearly designed for everyday carry in a backpack or briefcase.
Despite the slim profile, ASUS has managed to integrate a large-capacity 75 Wh battery, which supports extended use away from a power outlet. This combination of low weight, thin design, and high battery capacity positions the Vivobook S 14 as a practical tool for mobile workflows.
Performance and AI Capabilities
At the heart of the M5406WA-AH94 is the AMD Ryzen AI 9 365 processor. This 10-core chip delivers strong multi-threaded performance suitable for demanding productivity tasks, content creation, and multitasking. Coupled with 24GB of LPDDR5X RAM, the system handles large datasets, browser workloads, and creative applications with ease. The inclusion of a spacious 1TB SSD ensures quick boot times, rapid file transfers, and ample storage for documents, media, and software.
A standout element of this configuration is the integrated NPU (Neural Processing Unit) capable of up to 45+ TOPS (trillions of operations per second). This level of AI compute enables efficient local processing for supported Windows 11 features and emerging AI applications. The laptop ships with Windows 11 Home and includes a dedicated Copilot key, offering one-touch access to Microsoft’s AI assistant. This direct hardware integration signals a clear focus on the evolving AI-enhanced computing experience.
Display Quality
The visual experience is anchored by a 14-inch 3K (2880 x 1800) ASUS Lumina OLED display. With a 16:10 aspect ratio, the screen provides additional vertical space compared to standard 16:9 panels, allowing users to see more content in documents, spreadsheets, and timelines. The 120Hz refresh rate ensures smooth scrolling and fluid motion, while the OLED technology delivers deep blacks and high contrast.
Technical highlights of the panel include an ultrafast 0.2ms response time, up to 600 nits of peak HDR brightness, and 100% DCI-P3 color gamut coverage. These specifications make the display well-suited for color-sensitive work such as photo and video editing, as well as for immersive media consumption. The Lumina OLED branding reflects ASUS’s calibration and durability efforts for its OLED lineup.
Keyboard and Input
The Vivobook S 14 features a customizable RGB keyboard with single-zone backlighting. Users can personalize colors, lighting modes, and brightness levels to match their environment or preference. Beyond aesthetics, the keyboard is described as ergonomic, suggesting a comfortable key layout and travel distance for prolonged typing sessions.
Complementing the keyboard is an extra-large touchpad, which improves navigation efficiency and gesture control. The laptop also includes an ASUS AiSense camera, a feature designed to enhance video conferencing through intelligent framing, presence detection, or similar AI-driven optimizations.
Connectivity
In terms of ports, the M5406WA-AH94 offers extensive connectivity for a slim laptop:
- 2x USB 3.2 Gen 1 Type-A for legacy peripherals
- 1x USB 4.0 Gen 3 Type-C with display and power delivery support
- 1x USB 3.2 Gen 1 Type-C with display and power delivery support
- 1x Micro SD card reader for quick media transfers
- 1x HDMI 2.1 TMDS for external displays
- 1x 3.5mm combo audio jack
This selection covers the needs of most users, from connecting external monitors and storage to charging and audio output, without requiring bulky dongles.
Overall Assessment
The ASUS Vivobook S 14 OLED Slim Laptop (M5406WA-AH94) combines a high-resolution OLED display, capable Ryzen AI processing, generous memory and storage, and a lightweight build. Its AI-focused features, including the Copilot key and high-TOPS NPU, align with the direction of modern Windows computing. With a customizable RGB keyboard, large touchpad, and comprehensive port selection, it delivers both style and function for everyday professional and creative use.