Asus ZenBook S14 2026 Laptop Review - Brighter OLED, but a slow Panther Lake iGPU

The 2026 refresh of the Asus ZenBook S14 is one of those rare laptop updates that leaves you with mixed feelings. On one hand, you get a stunningly bright OLED display, significantly improved CPU performance, and better battery life in a gorgeous ultraportable chassis. On the other hand, the new Panther Lake processor comes with a slower integrated GPU that actually performs worse than its predecessor, while fan noise has increased dramatically under load.

After spending considerable time with the new Asus ZenBook S14 UX5406AA, I've come to appreciate its strengths while grappling with some puzzling compromises. Let's dive into what makes this ultraportable both better and worse than before.

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Design and Build Quality: Premium Feel with Refined Aesthetics

Asus has made subtle but meaningful design changes to the ZenBook S14 for 2026. The previous model featured a large ProArt logo on the lid with a different surface pattern, but the new version opts for a more understated approach with a small Zenbook logo and matching colors between the lid and base unit.

The chassis quality remains exceptional, utilizing Asus's ceraluminum material that offers a premium feel while keeping weight impressively low at just 1.2 kg (2.66 pounds). At only 12.9mm thick, this is one of the slimmest 14-inch laptops you can buy, and it feels incredibly portable whether you're commuting to work or traveling internationally.

The internal layout stays largely the same as the previous generation, despite the larger battery. You can still replace the M.2-2280 SSD, which is good news for those who might want to upgrade storage down the line. However, both the memory and Wi-Fi module remain soldered, so you'll want to choose your configuration carefully at purchase.

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Connectivity: Thunderbolt 4 and Wi-Fi 7 Keep It Future-Ready

Connectivity hasn't changed, and that's mostly good news. The ZenBook S14 features dual Thunderbolt 4 ports, a regular USB-A port, and HDMI – a solid selection for a laptop this thin. The Wi-Fi 7 module from Intel delivers exceptional transfer rates north of 4 Gbps with a compatible router, ensuring you're ready for next-generation wireless networking.

The 1080p webcam with IR support provides decent picture quality in good lighting conditions, and Windows Hello facial recognition works reliably for quick, secure logins.

Input Devices: Comfortable Typing and Responsive Navigation

The keyboard remains one of the ZenBook S14's strongest features. Despite limited key travel of just 1.1mm, the feedback is crisp and the overall typing experience remains comfortable for extended sessions. The backlit chiclet keyboard is well-spaced and responsive.

The mechanical clickpad continues to perform admirably, though I should note that mechanical clicks are slightly on the loud side. Still, the tracking is precise and gestures are smooth, making navigation a pleasure.

Display: Gorgeous OLED with Brighter HDR Performance

The display is where the 2026 ZenBook S14 sees one of its most significant upgrades. Asus has equipped this model with a brighter OLED touchscreen that retains the same 2.8K resolution (2880 x 1800 pixels) and 120Hz refresh rate as before, but with dramatically improved brightness.

In SDR mode, maximum brightness now reaches 450 nits (up from 370 nits), while HDR peak brightness jumps to an impressive 1,050 nits (from 615 nits). This makes HDR content truly pop and improves visibility in bright environments significantly.

The OLED panel delivers perfect blacks and infinite contrast ratio, with response times that are virtually instantaneous at just 0.53ms for black-to-white transitions. Color accuracy is outstanding out of the box, covering the full sRGB gamut and 98.3% of the P3 color space, with grayscale performance that would satisfy even professional content creators.

However, there are two notable display drawbacks. First, the touchscreen layer introduces a slight graininess on bright surfaces – a common issue with touchscreen OLED panels that Asus hasn't fully mitigated. Second, PWM flickering is present at 960Hz, which sensitive users may notice.

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Performance: CPU Gains, GPU Losses

This is where the Asus ZenBook S14 2026 becomes a story of "good news, bad news." The switch to Intel's new Panther Lake processor – specifically the Core Ultra 9 386H – delivers impressive CPU performance gains but comes with graphics compromises.

Processor Performance: A Major Step Forward

The Core Ultra 9 386H features 4 performance cores and 12 efficiency cores, with power consumption reaching up to 57W in burst mode before settling to around 28W under sustained loads. The results are clear: multi-core performance has effectively doubled compared to the previous Lunar Lake model.

In Cinebench R23, the ZenBook S14 scores 18,553 points in multi-core tests, compared to just 9,114 points from the previous generation. That's a massive leap forward. Single-core performance shows modest improvements, but the real story is multitasking and content creation workloads that can leverage multiple cores.

However, it's worth noting that while the CPU performance is strong, it's not class-leading. Qualcomm's Snapdragon X2 Elite in the Zenbook A14 still beats it, and Apple's fanless M5 SoC remains more efficient. The new chip is only slightly superior to AMD's Zen 5 offerings.

Graphics Performance: Disappointing Downgrade

The integrated graphics situation is where the ZenBook S14 2026 takes a surprising step backward. The Core Ultra 9 386H features the Intel Graphics 4 Xe3 Panther Lake iGPU, which delivers slower graphics performance than the previous generation's Arc graphics.

This is particularly disappointing because Asus has chosen not to offer the Core Ultra X CPUs with the faster Arc B390 graphics in this premium laptop. Users who need decent integrated graphics performance for light gaming or creative workloads will find themselves wanting more.

Performance Modes and Fan Noise

Asus offers three power profiles: Whisper, Standard, and Performance. The results across these modes show a clear trade-off between performance and noise:

Profile	TDP	Cinebench 2024 Multi	Time Spy Graphics	Max Fan Noise
Whisper	35/12W	476 points	1,991 points	29 dB(A)
Standard	57/17W	666 points	2,745 points	38.5 dB(A)
Performance	57/28W	969 points	3,048 points	49.1 dB(A)

The Whisper mode remains pleasantly quiet for everyday tasks, but when you push the system in Performance mode, fan noise reaches almost 50 dB(A) – significantly louder than the previous generation. This is a noticeable compromise for those who need maximum performance.

System and Storage Performance

System performance feels snappy and responsive, with no stability issues encountered during testing. The PCIe 4.0 SSD from Samsung (1TB capacity) delivers solid transfer rates:

Sequential Read: up to 7,071 MB/s
Sequential Write: up to 5,705 MB/s
4K Read: 65 MB/s
4K Write: 156.3 MB/s

The 32GB of soldered LPDDR5x-8533 RAM is generous and future-proof, though the soldered nature means you can't upgrade later. For most users, 32GB should be sufficient for years of use.

Battery Life: Slight Improvement

The larger 77Wh battery (up from 72Wh in the previous model) provides slightly longer runtimes, though the exact numbers vary depending on usage patterns. With the brighter display and more powerful CPU, the improvements are modest but welcome.

Price and Availability

The Asus ZenBook S14 2026 (UX5406AA) is priced at $1,899 from retailers like BestBuy. Considering the 32GB RAM, 1TB SSD, and premium OLED display, this is actually quite reasonable compared to competitors in the premium ultraportable segment.

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Comparison with Competitors

When comparing the ZenBook S14 2026 to similar laptops, the picture is mixed. It outperforms the previous generation significantly in CPU tasks but falls behind in graphics performance. Here's how it stacks up against some key competitors:

HP OmniBook Ultra 14: Similar CPU performance, better graphics
Apple MacBook Air M5: Better CPU efficiency, no fan noise, but pricier
Asus Zenbook A14: Better CPU performance with Snapdragon X2 Elite
Lenovo Yoga Slim 7: Comparable performance, often better value

The ZenBook S14's advantage remains its gorgeous design, lightweight build, and exceptional OLED display.

Verdict: Better and Worse at the Same Time

The 2026 Asus ZenBook S14 is an interesting update with significant trade-offs. It remains a sleek, lightweight 14-inch laptop with a premium design, decent connectivity, comfortable input devices, and an excellent sound system. The switch to Panther Lake CPUs roughly doubles CPU performance compared to the old Lunar Lake chip, and battery life sees modest improvements.

However, the graphics performance is actually worse, which is a real disappointment. A premium system like the ZenBook S14 deserves the latest Core Ultra X CPUs with the fast Arc B390 graphics, but you only get the Core Ultra 386H with the slower iGPU.

The new Panther Lake chips also have higher power limits, resulting in much louder fan noise than before. While Whisper mode remains pleasantly quiet, pushing the system to full performance generates almost 50 dB(A) – noticeably intrusive for an ultraportable.

The display improvements are genuinely impressive. The OLED screen is much brighter (especially in HDR mode) with accurate colors and 120Hz refresh, though the touchscreen layer introduces some graininess on bright surfaces – an issue that some manufacturers have managed to avoid.

Who Should Buy It?

Consider the Asus ZenBook S14 2026 if:

You prioritize CPU performance and multitasking
You want the brightest OLED display possible in an ultraportable
Design and portability are your top priorities
You don't need high-end integrated graphics performance

Look elsewhere if:

You need strong integrated graphics performance
You're sensitive to fan noise under load
You want upgradeable RAM or Wi-Fi
You prefer a laptop without touchscreen graininess

The Asus ZenBook S14 2026 isn't a simple upgrade – it's a trade-off. You get dramatically better CPU performance and a brighter display, but you sacrifice GPU performance and gain louder fans. If CPU performance is your priority and you can live with the graphics compromise, this is still an excellent ultraportable. If you need balanced performance or quiet operation under load, you might want to consider other options.

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Disclaimer: This review is based on testing data and analysis from professional hardware reviewers. Performance metrics may vary based on specific configurations, testing conditions, and software versions. Prices and availability are subject to change. Some links in this article are affiliate links, and we may earn a commission if you make a purchase through them.