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Asus Zenbook is a line of consumer-oriented high-end notebook computers produced by Asus. The first Zenbooks were released in October 2011 as Ultrabooks, and the original range of products has since been expanded to models ranging from smaller and power efficient notebooks to high-end and larger laptops with additions like discrete graphics processing units. As of 2024, the Asus Zenbook S serves as the company's flagship notebook computer.

The series is positioned by Asus as part of the thin-and-light segment within the premium consumer market. Asus designed the Zenbooks with brushed aluminium chassis and high rigidity, rather than plastic, the usual laptop construction material. A pattern of concentric circles on the lids is said to represent ripples in water and reflect the "zen philosophy" that designers wanted to portray when creating the laptops. Asus has also described its design approach as influenced by reductionism, aiming to simplify form while retaining functionality. As of 2024 there are various series including the standard Zenbook, extra slim and light Zenbook S, performance-oriented Zenbook Pro with dedicated graphics cards, convertible Zenbook Flip, dual screen Zenbook Duo, foldable tablet Zenbook Fold and portable Zenbook A.

Asus has also developed a proprietary material called Ceraluminum (from ceramic and aluminium) for the exterior of some Zenbook laptops.

History[]

First Zenbooks[]

In 2009 Asus released the UX50V, a 15-inch laptop that was focused on energy efficiency and had a thin profile. The laptop was rated poorly by reviewers as it under-performed and had mediocre battery life, despite the installed energy efficient hardware. Although not branded as one, it bore the same “UX” product code as many of the later Zenbooks and was an early foray into the ultraportable market. Asus unveiled the UX21 ultra-thin notebook at Computex 2011; later in October 2011, the UX21 (and a larger version, UX31) were made official under the Zenbook name. The Zenbook line began as Ultrabooks, designed to provide performance in a portable form factor. Sales in the U.S. began on October 12 starting at $999. The bodies of the Zenbooks are made of aluminium, chosen for its light weight, strength, vibration dampening, appearance and acoustic properties. Both the bodies and lids are CNC milled and brushed for appearance. Reviewers have noted the resulting superior rigidity and complimented the appearance of the Zenbook range. The Zenbook name was proposed by Asus chairman Jonney Shih to reflect the "zen philosophy" applied to the design. The chief designer, Loewy Chen, had wanted to incorporate design elements from luxury watches into his products for a long time. Zenbooks were the first opportunity to put this into practice, the crossover being achieved, he said, by "the unfolding of the laptop from the side recalling the elegance of minute and hour hand movements". The reference to watches is also reflected in the marketing of Zenbooks; Asus published design sketches overlaying an open Zenbook on a watch face, and video advertisements feature similar imagery. The concentric circles on the lid of Zenbooks were intended to look like ripples in water and to reflect "philosophical ideas such as the infinite nature of Zen thinking and self-improvement". In April 2012, Asus announced a second generation Zenbook, branded as Zenbook Prime, upgraded to run on Intel's new Ivy Bridge-based CPUs. Shortly after, it also introduced two lower-cost Zenbooks, as the UX32.

To preserve space, some Zenbooks use two PCBs connected by a communications ribbon so it can have ports on both sides of the device, with a heatsink and fan centred between them.

Recent history[]

In 2015, ASUS introduced the Zenbook Pro series, featuring models with discrete graphics. The following year, the Zenbook Flip series was launched as a convertible 2-in-1 line.

In 2017, Asus debuted ScreenPad with the Zenbook Pro 15 UX580. The ScreenPad replaces the regular touchpad with a colour capactive touchscreen display. This technology was then in 2019 included in the Zenbook 13 (UX334), Zenbook 14 (UX434) and Zenbook 15 (UX534) and offered optionally on the lower end line-up of VivoBook S laptops.

In 2018, ASUS expanded the Zenbook line with the Zenbook S series, emphasizing slim-and-light designs, and introduced the Zenbook Pro 15 (UX580) with the industry-first ScreenPad, which replaces the conventional touchpad with a colour capacitive touchscreen display.

In 2019, as a successor to the 2018's Zenbook Pro, the Zenbook Duo and Zenbook Pro Duo feature two screens – one at the regular position and the other above the keyboard. This second display resulted into the move of the keyboard nearer to the chin and the touchpad to where a numberpad would be, similarly to Asus' gaming ROG Zephyrus laptop.

In 2022, ASUS introduced the Zenbook Fold (UX9702), a foldable OLED device capable of functioning in both tablet and laptop modes. In 2024, Asus announced a new Zenbook Duo (UX8406) described as the world’s first 14-inch dual-screen OLED touchscreen laptop.The model featured two full-sized displays with a detachable keyboard, housed between the screens for transport and for use in a conventional laptop configuration. The new Zenbook Duo also included a kickstand to elevate the device for more comfortable use in portrait and landscape modes, and incorporated AI-related capabilities. ASUS continues to integrate processors such as Intel Core Ultra with AI capabilities and AMD Ryzen AI series, along with OLED displays and the use of sustainable materials. Some Zenbook models are certified under the Intel Evo platform.

Design[]

At ASUS, design thinking is a core principle, emphasizing a human-centered approach that prioritizes user needs and experiences.This philosophy informs the development of products through an understanding of user interactions with technology. ASUS designs focus on both aesthetics and addressing real-world challenges, aiming for practical and meaningful innovation.The ASUS Zenbook series exemplifies this philosophy by integrating advanced technology, mechanical engineering, and material research with aesthetic considerations in its design.

Features and technology[]

The ASUS Zenbook series integrates several design elements and technologies, contributing to its performance, user experience, and appearance. These include materials research, display development, hinge mechanisms, and input features.

Ceraluminum™[]

Ceraluminum™ is a patented material developed by ASUS and used in the Zenbook series. According to the company, its development involved many years of refinement in color, texture, porosity, and hardness, resulting in a smudge-resistant surface.The material combines ceramic-like hardness with metallic flexibility, allowing for thin and durable laptop designs.It has also been compared to applications in fields such as aerospace and watchmaking.

Dual-screen design[]

The ASUS Zenbook DUO features a dual-screen design with a detachable Bluetooth keyboard and built-in kickstand. It supports multiple modes of use, including:

  • Dual Screen Mode: extending the workspace across two displays for multitasking.
  • Desktop Mode: both screens positioned upright with the keyboard detached.
  • Sharing Mode: arranged side-by-side for reading or presentations.

The secondary screen is designed to support multitasking and professional creative workflows.

ASUS Lumina OLED[]

ASUS Lumina OLED is a branding used by ASUS for a category of OLED (Organic Light Emitting Diode) laptop displays, available in series such as Zenbook, Vivobook, and ProArt. These displays are characterized by high color accuracy, deep blacks, high contrast ratios, and fast response times. They also include features intended to reduce eye strain and extend display lifespan.

Hinges[]

  • EasyLift™ hinge: The EasyLift hinge on the Zenbook A14 is designed to allow one-finger opening while maintaining a stable screen position.
  • ErgoLift hinge: The ASUS ErgoLift hinge is a design used in several laptop series, including the Zenbook and Vivobook lines. The mechanism tilts the keyboard when the lid is opened, creating an angled typing position. It also allows additional airflow beneath the chassis for cooling and provides more space for downward-facing speakers.

Input features[]

  • Smart Gesture Touchpad: ASUS Smart Gesture is a touchpad feature available on ASUS laptops, including the ProArt, Zenbook, and Vivobook series. It supports one-finger scrolling as well as controls for volume, brightness, and video playback.
  • NumberPad: The NumberPad is a feature available on certain ASUS laptops, particularly compact models without a physical numeric keypad. It integrates an illuminated numeric keypad into the touchpad. When activated, LED lights display the layout of a standard numeric keypad for data entry, and when deactivated, the touchpad functions normally for cursor control.

Full I/O ports[]

ASUS Zenbook models include a range of I/O ports within a slim chassis, such as USB-A, Thunderbolt 4 USB-C, HDMI, and audio jacks. This allows connection to external devices without the need for additional adapters.

Series[]

Among the notable models, the Zenbook DUO features an OLED dual-display configuration, intended to improve multitasking workflows. The Zenbook A14 is positioned as a lightweight Copilot+ PC with long battery life, suitable for extended daily use. Additionally, the Zenbook S14 is described as a slim AI PC that combines performance with a compact design.

Zenbook DUO[]

The Zenbook DUO incorporates an OLED dual-display configuration, designed to support multitasking workflows.

Zenbook S[]

The Zenbook S14/S16 laptop is designed to be slim and lightweight. It uses miniaturized components, lightweight materials (Ceraluminum™), and CNC machining for its construction. The model also includes thermal solutions to manage heat and maintain performance.

Zenbook A[]

The Zenbook A14 is designed as an ultraportable model, combining lightweight construction, durability, performance, and long battery life. It uses a Ceraluminum™ chassis, cooling systems, and AI integration for performance optimization.

The ASUS Zenbook line has introduced products with varied form factors. The Zenbook Fold, for instance, includes a foldable OLED display that can shift from a compact size to a larger tablet. The Zenbook Flip offers a 2-in-1 convertible design, functioning as both a laptop and a touchscreen notebook.

Reviews and awards[]

The ASUS Zenbook series has received international recognition from design competitions and technology reviewers, reflecting its role in laptop development. The series is noted for its slim and lightweight form factors combined with high performance, and for a design approach often described as nature-inspired and focused on ergonomics. ASUS Zenbook models have received awards such as the iF Design Award, Red Dot Product Design Award, Golden Pin Design Award, IDEA Award, and Good Design Award.

In technology reviews, the Zenbook series is frequently highlighted for its build quality, OLED display options, and battery performance, particularly within the ultraportable category. Outlets including PCMag and Laptop Mag have reported that Zenbook devices offer competitive performance and durability, with some reviews noting longer battery life compared to other laptops in the same class.

Model comparison and specifications[]

Zenbook (2011–present)[]

Model Release date Display Matte Processor Chipset Graphics adapter Memory Secondary storage Wireless Battery Audio Unit weight Dimensions (Width × Height × Thickness) Peripheral connections Operating System
ZenBook (first generation)
UX21E Oct 2011 2nd Gen Intel Core
  • i3-2367
  • i5-2467M
  • i7-2677M
Intel HD Graphics 3000
UX31E 2nd Gen Intel Core
  • i5-2557M
  • i5-2557M
  • i7-2677M
ZenBook UX32 series
UX32A May 2012 2nd and 3rd Intel Core
  • i3-2367M
  • i5-3317U
UX32VD
  • 13.3" TN 1366 × 768
  • 13.3" IPS 1920 × 1080
Intel Core i7-3517U
UX32L Feb 2014
ZenBook (14" and 15")
UX42VS November 2012 14.0" TN 1366 × 768 3rd Gen Intel Core
  • i3-3217U
  • i5-3317U
  • i7-3517U
UX52VS 15.6" IPS 1920 × 1080 3rd Gen Intel Core
  • i5-3317U
  • i7-3517U
  • i7-3610QM
ZenBook NX500
NX500 June 2014 15.6" IPS 3840×2160 Intel Core i7-4712HQ
ZenBook UX302
UX302LA September 2013 13.3" IPS 1920×1080 4th Gen Intel Core
  • i5-4200U
  • i7-4500U
Intel HD Graphics 4400 2/4GB 1600 MHz DDR3L, upgradeable to 8 GB
  • 256GB 2.5" SATA3 SSD
  • 500/750 GB 2.5" SATA3 HDD
802.11 a/b/g/n/ac Wi-Fi and Bluetooth 4.0 3 Cell, 50 Wh 1.5 kg 325 x 226 x 5 ~17.2 mm
  • 1 × Microphone-in/Headphone-out jack
  • 3 × USB 3.0 port(s)
  • 1 × HDMI
  • 1 × mini Display Port
  • 1 × SD card reader
  • 1 × AC adapter plug
UX302LG Intel HD Graphics 4400 + NVIDIA GeForce GT730M
ZenBook UX303
UX303UA 13.3"
  • 16:9 HD (1366x768)
  • IPS FHD (1920x1080)
  • IPS QHD+ (3200x1800)
6th Gen Intel Core
  • i3-6100U
  • i5-6200U
  • i7-6500U
UX303LN 13.3" 16:9
  • IPS FHD (1920x1080)
  • QHD+ (3200x1800)
4th or 5th Gen Intel Core
  • i5-4210U
  • i7-4510U
  • i5-5200U
  • i7-5500U
UX303UB 6th Gen Intel Core
  • i5-6200U
  • i7-6500U
UX303LA 13.3" 16:9
  • HD+ EWV (1600x900)
  • IPS FHD (1920x1080)
4th or 5th Gen Intel Core
UX303LB 13.3" 16:9
  • IPS FHD (1920x1080)
  • QHD+ (3200x1800)
5th Gen Intel Core
  • i5-5200U
  • i7-5500U
ZenBook UX305
UX305FA September 2014 13.3"
  • IPS FHD (1920×1080)
  • IPS QHD+ (3200×1800)
LPDDR3 1600 MHz SDRAM, 4 GB, upgradeable to 8 GB 128, 256 or 512 GB SSD 802.11 a/b/g/n/ac Wi-Fi and Bluetooth 4.0
UX305CA December 2015 LPDDR3 1600 MHz SDRAM, 4 or 8 GB
UX305LA September 2014 5th Gen Intel Core
  • i3-5010U
  • i5-5200U
  • i7-5500U
UX305UA December 2015 6th Gen Intel Core
  • i3-6100U
  • i5-6200U
  • i7-6500U
ZenBook UX306
UX306UA May 2016
ZenBook x10 series
UX310UQ March 2017 13.3"
  • IPS FHD (1920×1080)
  • IPS QHD+ (3200×1800)
6th and 7th Intel Core
  • i3-7100U/6100U
  • i5-7200U/6200U
  • i7-7500U/6500U
UX310UA 6th, 7th and 8th Gen Intel Core
  • i3-7100U/6100U
  • i5-8250U/7200U/6200U
  • i7-8550U/7500U/6500U
UX410UQ March 2017 14.0" IPS FHD (1920×1080) 6th or 7th Gen Intel Core
  • i5-7200U/6200U
  • i7-7500U/6500U
UX410UF October 2017 8th Gen Intel Core
  • i5-8250U
  • i7-8550U
UX410UA March 2017
UX510UX
UX510UW
ZenBook x30/x31 Classic series
UX330CA March 2017
UX330UA 13.3"
  • IPS FHD (1920×1080)
  • IPS QHD+ (3200×1800)
UX331UA April 2018
UX331UN February 2018
UX430UA November 2017 14" IPS FHD (1920×1080)
UX430UF
UX430UN
UX530UQ October 2017 15.6" IPS FHD (1920×1080)
UX530UX
ZenBook x33 series
UX333FA August 2018
UX333FN
UX433FA
UX433FN
UX533FN
UX533FD
ZenBook x34 series
UX334FL May 2019 13.3" IPS FHD (1920×1080) 8th Gen Intel Core
  • i5-8265U
  • i7-8565U
Intel UHD Graphics 620 + NVIDIA GeForce MX250 LPDDR4 2400 MHz SDRAM, 8 GB/16 GB
UX334FL Edition 30
UX434FL
UX534F Intel UHD Graphics 620 + NVIDIA GeForce GTX 1650 Max-Q
ZenBook 3 x90 series
ZenBook 3 UX390UA 7th Gen Intel Core
  • i5-7200U
  • i7-7500U
ZenBook 3 Deluxe UX490UA 8th Gen Intel Core
  • i5-8250U
  • i7-8550U
ZenBook 14X OLED
UX5400
Zenbook 14X OLED UX3404VC January 2023
Zenbook 14X OLED UX3404VA
Zenbook 15 OLED
Zenbook 15 OLED UM3504 April 2023 15.6” 2.8K OLED HDR NanoEdge display Up to AMD Ryzen 7000 Series processors Up to AMD Radeon graphics
Zenbook 14
UM3406HA January 2024

Zenbook Prime/Touch/Infinity (2012–14)[]

Model Release date Display Matte Processor Chipset Graphics adapter Memory Secondary storage Wireless Battery Audio Unit weight Dimensions (Width × Height × Thickness) Peripheral connections Operating System
ZenBook Prime
UX21A Jun 2012 11.6"
  • TN 1366 × 768
  • IPS 1920 × 1080
3rd Gen Intel Core
  • i5-3317U
  • i7-3517U
Intel HD Graphics 4000
UX31A 13.3"
  • TN 1600 × 900
  • IPS 1920 × 1080
3rd Gen Intel Core
  • i5-3317U
  • i7-3517U
  • i7-3537U
ZenBook Touch
UX500VZ
ZenBook Infinity
UX301LA September 2013 13.3" IPS QHD (2560×1440) 4th Gen Intel Core
  • i5-4200U
  • i7-4500U
  • i7-4558U

Zenbook Flip (2016–present)[]

Model Release date Display Matte Processor Chipset Graphics adapter Memory Secondary storage Wireless Audio Battery Unit weight Dimensions (Width × Height × Thickness) Peripheral connections Operating System
ZenBook Flip x60 series
UX360CA July 2016 13.3"
  • IPS FHD (1920×1080)
  • IPS QHD+ (3200×1800) with touchscreen
Intel HD Graphics 515 LPDDR3 1600 MHz SDRAM, 4 GB, upgradeable to 8 GB
UX360UA 6th and 7th Gen Intel Core
  • i5-6200U
  • i7-6500U
  • i5-7200U
  • i7-7500U
Intel HD Graphics 620/520 LPDDR3 1600 MHz SDRAM, 8 GB, upgradeable to 16 GB
UX560UA 15.6" IPS FHD (1920×1080) 6th Gen Intel Core
  • i5-6200U
  • i7-6500U
Intel HD Graphics 520
ZenBook Flip x61 series
UX461UA February 2018 14.0" IPS FHD (1920×1080) touchscreen 8th Gen Intel Core
  • i5-8250U
  • i7-8550U
UX461UN
UX461FN
UX561UA 15.6" IPS FHD (1920×1080) touchscreen
UX561UN
UX561UD 15.6"
  • IPS FHD (1920×1080)
  • IPS UHD (3840×2160) touchscreen
ZenBook Flip x62 series
UX362FA August 2018 8th Gen Intel Core
  • i5-8265U
  • i7-8565U
UX562FD
†: This port is only on devices without world-facing cameras.

‡: The 86Wh option is only available for devices with SSD.

ZenBook Flip S UX370
UX370UA
Zenbook 14 Flip OLED
UP3404VA January 2023

Zenbook Pro (2015–present)[]

Model Release date Display Matte Processor Chipset Graphics adapter Memory Secondary storage Wireless Audio Battery Unit weight Dimensions (Width × Height × Thickness) Peripheral connections Operating System
ZenBook Pro x01 series
UX501JW May 2015 15.6" IPS FHD (1920×1080) or IPS UHD (3840×2160) Intel Core i7-4720HQ LPDDR3 1600 MHz SDRAM, 4/8 GB, upgradeable to 16 GB 802.11 b/g/n Wi-Fi or 802.11 a/b/g/n/ac Wi-Fi and Bluetooth 4.0
  • 60 Wh, 4-cell battery
  • 96 Wh 6-cell battery
  • 2.06 kg (4-cell)
  • 2.27 kg (6-cell)
  • 383 x 255 x 20.6 (4-cell)
  • 383 x 255 x 21.3 (6-cell)
UV501VW October 2016 Intel Core i7-6700HQ DDR4 2133 MHz SDRAM, 8 GB, upgradeable to 16 GB
ZenBook Pro x50 series
UX550VD 7th Gen Intel Core
  • i5-7300HQ
  • i7-7700HQ
DDR4 2400 MHz SDRAM, 8/16 GB 802.11 a/b/g/n/ac Wi-Fi and Bluetooth 4.2
UX550VE
ZenBook Pro x80 series
UX480FD July 2018 14" IPS FHD (1920×1080) 8th Gen Intel Core
  • i5-8265U
  • i7-8565U
DDR4 2400 MHz SDRAM, 8/16 GB 802.11 a/b/g/n/ac Wi-Fi and Bluetooth 5.0
UX580GE September 2018 15.6" IPS FHD (1920×1080) or IPS UHD (3840×2160 8th Gen Intel Core
  • i5-8300H
  • i7-8750H
  • i9-8950HK
UX580GD
Zenbook Pro14 OLED
UX6404VI January 2023 14.5" 2.8K 120 Hz OLED display
UX6404VV

Zenbook Duo (2019–present)[]

Model Release date Display Matte Processor Chipset Graphics adapter Memory Secondary storage Wireless Battery Audio Unit weight Dimensions (Width × Height × Thickness) Peripheral connections Operating System
ZenBook Duo x81 series
ZenBook Duo UX481FL May 2019 14" IPS FHD (1920 × 1080) + 12.6" FHD (960 × 1080) ScreenPad Plus Intel HD Graphics + NVIDIA GeForce MX250 256/512GB PCIe (X2) SSD or 1 TB PCIe (X4) SSD 802.11 a/b/g/n/ac/ax Wi-Fi and Bluetooth 5.0
ZenBook Pro Duo UX581GV 15.6" OLED UHD (3840 × 2160) + 14" FHD (3840 × 1100) ScreenPad Plus 9th Gen Intel Core
  • i7-9750H
  • i9-9980HK
Intel UHD Graphics 630 + NVIDIA RTX 2060
Zenbook Duo
Zenbook DUO UX8406MA January 2024 Up to dual 14" 3K 120 Hz OLED NanoEdge touchscreens
Zenbook DUO UX8406UA

Zenbook S (2018–present)[]

Model Release date Display

Matte

Processor Chipset Graphics adapter Memory Secondary storage Wireless Battery Audio Unit weight Dimensions

(Width × Height × Thickness)

Peripheral connections Operating System
ZenBook S UX391
UX391UA August 2018 13.3" IPS FHD (1920 × 1080) or IPS UHD (3840 × 2160) Intel UHD Graphics 620
UX391FA Early 2019
ZenBook S UX392
UX392FA February 2019 13.9" IPS FHD (1920×1080) 8th Gen Intel Core
  • i5-8265U
  • i7-8565U
UX392FN
ZenBook S UX393
UX393 December 2020 Intel Core i7-1065G7 Intel Iris Plus Graphics
UX393 (France) 11th Gen Intel Core
  • i5-1135G7
  • i7-1165G7
Zenbook S13 OLED
UX5304MA April 2023 13.3” 3K OLED HDR NanoEdge display Up to Intel Core Ultra 7 Processor Wi-Fi 6E (802.11ax) (Triple band) 2*2 + Bluetooth 5.3 Wireless Card 63WHrs, 2S2P, 4-cell Li-ion 29.62 x 21.63 x 1.09 ~ 1.18 cm (11.66 x 8.52 x 0.43~ 0.46") Windows 11 Pro - ASUS recommends Windows 11 Pro for business
UX5304VA
Zenbook S16
UX5606SA May 2024 16:10 3K ASUS Lumina OLED display Up to Intel Core Ultra 9 processor (Series 2) Intel Arc Graphics
UM5606WA Up to AMD Ryzen AI 9 HX 370 processor
  • AMD Radeon 880M Graphics
  • AMD Radeon 890M Graphics
UM5606KA AMD Radeon Graphics
Zenbook S14
UX5406SA September 2024

Zenbook Fold (2022–present)[]

Model Release date Display

Matte

Processor Chipset Graphics adapter Memory Secondary storage Wireless Battery Audio Unit weight Dimensions

(Width × Height × Thickness)

Peripheral connections Operating System
Zenbook 17 Fold OLED
UX9702AA August 2022 1 TB PCIe NVMe
  • Wi-Fi 6E
  • Bluetooth 5.3
  • 2 x Thunderbolt 4
  • 1 x 3.5mm audio
2x USB-C 3.2 with Thunderbolt 4, audio jack Windows 11 Pro

Zenbook A (2025-present)[]

Model Release date Display Matte Processor Chipset Graphics adapter Memory Secondary storage Wireless Battery Audio Unit weight Dimensions (Width × Height × Thickness) Peripheral connections Operating System
Zenbook A14
UX3407QA January 2025 16:10 FHD OLED display Up to 32 GB LPDDR5x 8533 MHz RAM Up to 1 TB PCIe Gen 4 SSD
  • 70 WHrs, 3S1P, 3-cell Li-ion
  • 48 WHrs, 3S1P, 3-cell Li-ion
  • Smart Amp Technology
  • Built-in speaker and array microphone
31.07 x 21.39 x 1.34 ~1.59 cm (12.23 x 8.42 x 0.53~0.63 in)
UX3407RA 70 WHrs, 3S1P, 3-cell Li-ion

Reception and criticism[]

The first official ZenBooks, the ZenBook UX21E and UX31E drew comparisons to the MacBook Air and it was regarded as an "excellent rival" by CNET reviewer Andrew Hoyle. Other aspects of the laptops that reviewers liked were the Bang and Olufsen speakers, fast boot times due to Asus' BIOS design and the speed of general tasks within the operating system resulting from the SSD and Sandy Bridge processors. However, the screens drew criticism for their poor contrast ratio, colour accuracy and less than perfect viewing angle, although they were praised for their brightness and the sharpness of the UX31's screen. Reviewers also noted the shallow key-press of the metal keyboard and lack of backlighting, a feature that Asus did not have time to implement before shipping.

ZenBooks have been generally well received due to their chassis design and appearance as well as the high quality screens used in later models. However, the touchpad software was found to be erratic, particularly on the early models and some of the models received criticism for their high prices. Some models (such as the UX32) suffer from lockdown when the lithium polymer battery cell gets drained or discharged below its recommended threshold, for example if the device is left on and unattended. The result is that the charger will fail to recharge the battery even when plugged in, leaving the machine in a near-complete unresponsive off-state. The machine can often be revived by pressing the power-on key for 10 seconds, whereupon it will start recharging.

Earlier models[]

The new screens on the ZenBook Prime were highly praised by reviewers when considering brightness, contrast ratio, viewing angle and colour accuracy, the improvements over previous models being put down to the switch from TN to IPS displays. The keyboard also garnered praise for the increased backlighting and improved key travel while the Intel Wi-Fi controller was found to perform better than the Qualcomm used in the first generation of Zenbooks. The Zenbook Primes still received some criticism: the latest version of the touchpad was acknowledged as an improvement over the original Zenbooks, but still irritating, and the sound quality was found to be worse than that with the first generation. Despite these issues, the overall reaction was positive: the UX31A was called "today's best ultrabook" and "the best ultrabook out there" at the time of release.

The ZenBook UX32VD was well received for similar reasons to the Zenbook Prime. The screen, chassis and keyboard again garnered praise although the inclusion of a discrete GPU was noted as a major selling point. The hybrid drive attracted criticism for its slow performance and the same touchpad issues that the Zenbook Prime had were still present. SLR Lounge criticised the slow hybrid drive and 4 GB of RAM, but suggested replacing them as the option is available, noting that it was an option not often offered on ultrabooks.

Numerous Zenbook models with resolution specifications of QHD+ (3200 × 1800) and 4K (3840 × 2160) utilize Pentile RG/BW displays, which are regarded by some as a "shady practice" and "sort of cheating".

As a cheaper option the ZenBook UX32A was praised by Chris Martin of PC Advisor for being "a more affordable luxury", retaining the "premium feel" of the Zenbook range but at a lower price point. The aluminium chassis, which is identical to the UX32VD to keep costs down, was widely acclaimed for its strength and build quality. By contrast, the Sandy Bridge chip, a previous-generation part at the time of sale, was outlined as a detraction as was the lower battery life compared to the UX31E. Although the screen used was a TN panel and of a lower resolution than the UX32VD or UX31A, it was considered an acceptable compromise for the price. The screen has a matte finish and relatively high brightness which Notebook Check's reviewer, Christian Hepp, found "quite suitable for outdoor use", noting that it had a good contrast ratio but a narrow range of colours.

The ZenBook UX42VS and UX52VS drew criticism for its high price and lack of touch screen, but the screen quality, keyboard and system speed were praised. The battery life was considered acceptable taking into account the form-factor and the discrete GPU, despite it being significantly shorter than the UX31A.

AnandTech reviewer Jason Inofuentes found the touch screen to be so superior to the touchpad that he stopped using the touchpad altogether in his trial of a Zenbook Touch at the Asus launch event. Chris Griffith of The Australian found that the screen of the UX31A responded well and that the Windows 8 gestures worked predictably, his only criticism being the high price.

Recent models[]

The ZenBook UX430 is commonly reported to suffer from significant coil whine issues.