ASUS is using CES 2026 to draw a new line in the sand for what an ultra-thin, AI-first Windows laptop can look like, and that line is the new Zenbook S14 (2026) UX5406. It’s a 14‑inch Copilot+ machine that tries to balance serious AI horsepower, premium materials, and actual usability instead of chasing thinness for the spec sheet alone.​

On paper, the CPU story is straightforward: the Zenbook S14 moves to Intel’s new Core Ultra Series 3 platform (Panther Lake), with an integrated NPU capable of up to 50 TOPS, which is a big step up from last-gen Lunar Lake in both AI throughput and efficiency. ASUS is pushing that envelope with CPU TDPs up to 28W inside a chassis that’s about 1.1cm thick and roughly 1.2kg, making it one of the thinnest and lightest 14‑inch Copilot+ laptops you’ll see on the CES floor. To make that work without turning the underside into a hand warmer, the company is leaning on a “Thincredible” vapor‑chamber cooling setup and dual IceBlade fans, claiming a 37% larger vapor chamber than before and a quiet mode that keeps fan noise under 25dB.​

Where ASUS really wants this machine to stand out is in materials and build. The lid uses the company’s new Ceraluminum composite — essentially a ceramic‑aluminum hybrid that promises the tactile feel of ceramic with the toughness and weight profile of metal, plus better scratch resistance than standard anodized aluminum. The chassis itself is CNC‑machined and comes in Scandinavian White or a darker Antrim Gray, both leaning into the Nordic minimalist aesthetic that ASUS has been using across its latest Zenbook line. The EasyLift hinge is tuned to keep wobble to a minimum and slightly raise the keyboard deck at open, while the ErgoSense keyboard and oversized glass touchpad with “Smart Gesture” support are clearly targeted at people who spend more time typing in docs than tweaking BIOS settings.​

The display is classic modern Zenbook: a 14‑inch ASUS Lumina OLED panel at 3K (2880 x 1800), 16:10 aspect ratio, and 120Hz refresh, with up to 1100 nits peak HDR brightness and full DCI‑P3 coverage. It’s Pantone Validated and DisplayHDR True Black 1000 certified, so you’re looking at inky blacks and accurate color, with TÜV/SGS eye comfort badges and claims of 70% less harmful blue light for people who stare at this thing all day. Audio is handled by a four‑speaker Dolby Atmos setup with dual front‑firing tweeters and dual woofers, backed by a smart amp, which should make it more Netflix‑and‑hotel‑room‑friendly than most 1‑kg‑class machines.​

Connectivity is refreshingly normal for an ultra‑thin: you still get two Thunderbolt 4 USB‑C ports, a USB‑A 3.2 Gen 2, HDMI 2.1 TMDS, and a 3.5mm audio jack, which means you don’t immediately live the dongle life just to plug in a mouse and a monitor. Wireless gets bumped to Wi-Fi 7 with ASUS’s WiFi Master Premium tuning, plus Bluetooth 5.x/6‑class connectivity depending on region, so you’re set for multi‑gig routers when they actually show up in homes. Under the hood, configurations go up to 32GB of LPDDR5X RAM and 1TB PCIe 4.0 SSD storage, powered by a 77Wh battery that, paired with the new Core Ultra 3 efficiency claims, is clearly intended to deliver legitimate all‑day runtimes instead of marketing slides.​

Security and AI‑assist are where the Copilot+ badge really starts to matter. The Zenbook S14 layers Windows Hello face unlock on top of an AiSense IR camera, which also powers Adaptive Lock (auto‑lock when you walk away) and Adaptive Dimming (screen dims when you look away). Microsoft Pluton is on board for hardware‑to‑cloud security, and ASUS adds its own Voice Print tech to recognize the owner’s voice, tightening up voice command accuracy and making it harder for someone else to wake your laptop with a random shout. Copilot integration is baked in via Windows 11 and a dedicated Copilot key, and the 50‑TOPS NPU means more of those AI features can run locally without slamming the battery or your data connection.​

In the wider CES 2026 landscape, Zenbook S14 slots into ASUS’s broader AI PC story alongside machines like the Zenbook S16 and the featherweight A‑series; the S14’s job is to be the sweet spot for people who want a proper mobile workhorse that still feels like a design object. It’s not trying to be a gaming rig and it’s not a crazy dual‑screen concept — it’s a classic clamshell that quietly leans on new silicon, new materials, and some thoughtful ergonomics to justify its place in a world where every other 14‑inch laptop also promises thin, light, and clever. For anyone who lives in documents, creative apps, or browser tabs all day and wants an AI‑ready machine that doesn’t scream “dev workstation,” this is the Zenbook ASUS clearly expects you to look at first.