Zenbook 14 OLED UM3406KA review: This is the lightest Asus laptop with a powerful AMD Ryzen AI 7 350 processor, a classy OLED screen, and a battery life of up to 12 hours.
The Zenbook 14 OLED UM3406KA inherits the slim and light design of the previous generation but is powerful. The AMD Ryzen AI 7 350 processor provides impressive performance for every task. The sharp OLED display lets you enjoy vivid images, while the battery life of up to 12 hours allows you to work comfortably all day without worrying about charging.
So, does the Zenbook 14 OLED truly serve as the ideal companion for those who need the perfect combination of performance and portability? Let’s review the Asus Zenbook 14 OLED UM3406KA!
Asus Zenbook 14 OLED UM3406KA Review
Still Keeps Its Slim and Light Build
The Asus UM3406KA retains the familiar design style with a thin and light appearance, luxurious metal back, a thickness of only 1.49 cm, and a weight of 1.2 kg. The Tenkeyless keyboard has deep key travel and a reasonable distance, providing a comfortable and accurate typing feeling.
Glass covers the spacious, highly sensitive trackpad, providing a smooth swiping experience. However, the notebook’s surface is still prone to sweat and fingerprints, so users must clean it regularly to keep its appearance clean and beautiful.
In the 2024 version, the Zenbook’s hinge was loose and wobbly during everyday use. However, on the Zenbook 14 OLED 2025, Asus listened to users and refined the hinge, making it more sturdy and smoother. Opening the device with one hand is now easier and more stable, and the screen shakes less, giving it a premium feel and high reliability in daily use.
Sharp, Clear, OLED
ASUS Zenbook 14 OLED UM3406KA still uses a 14-inch OLED screen with a 2880 x 1800 pixels resolution, providing sharp and detailed images. The screen displays vibrant colors with 100% DCI-P3 color coverage, helping users experience vivid and realistic pictures. The screen also supports HDR True Black 600, reaching a maximum brightness of 600 nits, providing deep blacks and high contrast, which is ideal for watching movies or working with graphics.
The display features a 120Hz refresh rate with a response time of just 0.3ms, delivering smooth and sharp visuals, especially when scrolling through pages, watching videos, or playing light games. The high refresh rate minimizes lag, making viewing images and operating your computer extremely smooth and enjoyable.
Well-Rounded Port Selection
It is equipped with quite a lot of connection ports. The left side of the device is equipped with only one USB A port that meets the 3.2 Gen 1 standard for data transfer speeds up to 5 Gbps. The right side of the device is equipped with an HDMI 2.1 port, a 3.5mm headphone jack, 1 USB C 3.2 gen 2 port that supports charging and data transfer speeds up to 10Gbps, 1 USB C port that meets the 4.0 gen 3 standard that supports charging and data transfer speeds up to 40Gbps.
Compared to the new Ultrabook models, the Zenbook 14 OLED 2025 is quite fully equipped, instead of only having 2 to 3 USB-C ports like other Ultrabook models. However, with my usage needs, the USB A is relatively small. The company can equip users with 1 or 2 more USB A ports to connect other peripheral devices comfortably without a port hub.
Asus UM3406KA review test
Smooth Speed, Thanks to Ryzen AI 7 350
Asus Zenbook 14 OLED UM3406KA has an AMD Ryzen AI 7 350 processor with 8 cores, 16 threads, and a maximum speed of up to 5.0GHz, providing powerful performance for all tasks. The device also has an AMD XDNA NPU with a processing capacity of up to 50 TOPS, optimizing AI tasks. AMD Radeon Graphics handles graphics, enough to meet the needs of work and light entertainment.
It also has 32GB of LPDDR5X RAM and 512GB M.2 NVMe PCIe 4.0 SSD, ensuring smooth multitasking performance and high-speed data transfer speeds. However, the laptop’s RAM is onboard and cannot be upgraded after purchase, so users need to consider this configuration carefully before choosing it.
Benchmark
CPU Performance (Cinebench R23, Cinebench R24, Geekbench 6):
The Zenbook 14 OLED UM3406KA with AMD Ryzen AI 7 350 processor shows impressive power in performance tests. In Cinebench R23, the device scored 1,868 points in single-core and 10,982 points in multi-core, demonstrating its ability to handle single-threaded and multi-threaded tasks well. The results of the Geekbench 6 test were even more impressive, with 2,806 points in single-core and 11,558 points in multi-core.
Through performance tests, we see this CPU’s overall performance is compelling and suitable for heavy tasks such as programming, photo and video editing, or data processing. This is a significant step forward for a thin, light ultrabook model, balancing performance and mobility.
Compared to the HP OmniBook Ultra Flip 14, the Ryzen AI 7 350 on the Zenbook 14 excels in multi-core performance with 10,982 Cinebench R23 points, significantly higher than the Core Ultra 7 268V with only 8,067 points of its competitor, showing better ability to handle heavy tasks and multitasking. Although the single-core performance between the two machines is quite similar, the Zenbook still shows more impressive overall power, which is very suitable for users who need high performance in a thin and light design.
GPU Performance (3DMark, PCMark 10, Geekbench 6, PugetBench)
Despite only being equipped with AMD Radeon 860M integrated graphics, the Zenbook 14 OLED UM3406KA still delivers pretty good performance for everyday and basic graphics tasks. In the 3DMark Time Spy test, the device scored 2,588 points, showing stable graphics processing at a general level. In addition, the score of 6,653 on PCMark 10 reflects good overall performance, from office tasks and web surfing to light photo editing and multimedia entertainment.
The Zenbook 14 OLED 2025 continues to show stability. Specifically, the PugetBench test for Photoshop recorded 7,584 points. With Premiere Pro, the device reached 2,704 points, showing that the device is capable of handling basic to medium image and video editing projects. Although not a device specialized for heavy graphics, with current performance, this is still a suitable choice for users who create light content or do multimedia work.
SSD Performance (3DMark 3 – Storage Benchmark)
Our Asus Zenbook 14 OLED UM3406KA review unit packs a 512GB PCIe 4.0 SSD, providing fast and efficient data transfer speed. According to 3DMark (Storage benchmark) results, the device’s SSD achieved 1,264 points, with an average read and write speed of 219.56MB/s. This powerful SSD performance lets users quickly open applications, transfer files, or boot the operating system. With this performance, users can rest assured that they will work smoothly without worrying about data transfer speed.
Gaming Experience
With the tactical shooter Valorant, the Zenbook 14 UM3406KA maintains its form with an average of 174 FPS at Full HD, max settings. The 120Hz refresh rate on the OLED screen, combined with stable performance, makes every movement smooth and precise, suitable for processing phases requiring fast reflexes. This is a big plus for those who often play light FPS games on thin and light laptops.
Finally, with Counter Strike 2, a more graphically demanding game, the Zenbook 14 begins to show the limits of its integrated card. At Full HD, max settings, the laptop reaches an average of 45 FPS, which is playable but not ideal in situations that require fast response speeds. Users should lower the graphics settings to medium for a more stable experience if they want to play for a long time.
Working Experience
The Asus Zenbook 14 OLED UM3406KA provides a smooth and stable working experience thanks to the AMD Ryzen AI 7 350 processor and 32GB RAM. Tasks such as surfing the web, opening applications, and multitasking are all done quickly. The sharp 3K OLED screen displays clear text and vivid colors, making it suitable for office work and basic content editing.
Entertainment Experience
Zenbook 14 OLED UM3406KA delivers an impressive entertainment experience thanks to its vivid 3K OLED display and dual speakers tuned by Harman Kardon. When watching movies, the screen displays deep blacks, high contrast, and a wide color gamut, making images realistic and vivid. The sound is clear, the bass is good, and the soundstage is wide enough to enjoy your favorite movies or music without needing headphones.
Heat Management
The laptop reached an extremely cool temperature during this Asus Zenbook 14 OLED UM3406KA review. Thanks to being equipped with a powerful but extremely cool Ryzen AI 7 350 and a cooling system optimized by Asus for space and aerodynamics, the highest temperature recorded in the contact area was about 39.6 degrees Celsius in the middle of the machine. At the bottom of the laptop, the highest temperature was about 46.7 degrees Celsius.
With this temperature, users can rest assured that they can use the device for a long time, even when placed on the lap, without feeling too hot. At the same time, low operating temperatures also help increase component life and ensure stable performance over time.
Power That Stays Overnight
Asus Zenbook 14 OLED UM3406KA has a 75 WHr battery with a battery life of up to 768 minutes (about 12.8 hours), allowing users to comfortably use it all day without worrying about recharging, from office work to light entertainment. The laptop also supports charging via a Type-C port, helping you charge quickly and conveniently, especially when traveling or using outdoors.
Final Line
After the Asus Zenbook 14 OLED UM3406KA review, I can say it is a thin, light, but powerful Ultrabook laptop. It has a sophisticated design, a sharp 3K OLED screen, and impressive AMD Ryzen AI 7 350 performance. The laptop serves well for office work and entertainment, and brings a smooth experience when playing light eSports games. The efficient cooling system and long battery life allow you to comfortably use it all day without worrying about running out of battery.
Also see: Asus Zenbook S14 UX5406 Review
With outstanding features, strong performance, slim design, and impressive storage, this laptop is an excellent fit for anyone needing a reliable machine for work and play. Whether you’re a student juggling assignments or an office worker on the move, it strikes a solid balance between power and portability. It’s currently available on Amazon UK for £971.99, featuring 16GB of RAM and a spacious 1TB PCIe Gen 4 SSD.
