TODO alt text

Asus Zenbook UX21 review

One of the best 11-inch laptops - but can it justify its price?

Our Verdict

Product features

  • Screen Resolution : 1366 x 768
  • Processor Core : Dual-core (2 Core)

View full specification

For

  • Light and slim
  • Sandy Bridge power
  • Strong
  • Carry case supplied
  • Great battery life

Against

  • Pricey for an 11-inch machine
  • Small keyboard
  • Limited connectivity
  • Frustrating track pad

Asus zenbook ux21 review

Despite being only 11 inches in size, this netbook-sized ultrabook doesn't scrimp on power. Under the Asus Zenbook UX21's hood there's a low-voltage Sandy Bridge Intel Core i5 2467M processor, clocked at 1.6GHz.

Despite only having a clock speed of 1.6GHz, the low voltage Core i5 still packs plenty of power, and there are four cores to make mincemeat out of most tasks.

The Asus Zenbook UX21 has a few more tricks up its sleeve. It has 4GB of RAM, (the MacBook Air has just 2GB) and a 128GB SSD card that aids performance. And at £849, it's a whopping £150 cheaper.

Asus zenbook ux21 review

The Asus Zenbook UX21 is a Windows machine, so there's no sleek OS X 10.7 Lion, should you have a preference, and there's no superfast Thunderbolt port, but one of the two USB ports is the brand new USB 3.0 standard.

This whole package weighs just 1.2kg and measures just 9mm at its thickest point, making it frighteningly portable yet strong.

It's clear from the outset that the Asus Zenbook UX21 has the right to rival the Apple MacBook Air, and the build quality is superb.

Asus zenbook ux21 review

The aluminium body offers no flex, the lid rises smoothly from the body, the keys are tactile, comfortably spaced and easy to type on despite being on a netbook-sized portable laptop, and it's comfortable to type on, although the reduced size did lead to more mistakes than a standard-sized laptop.

If you spend most of your day bashing out long documents, then you would probably want to opt for the Asus Zenbook UX21's larger 13-inch cousin, the UX31, or the excellent Acer Aspire S3, which is available for £699 for the Intel Core i5 model.

The screen looks fantastic for such a small laptop, and it's ideal for watching movies while you're on the move. Colours were vibrant, the picture sharp, and this makes the Asus Zenbook UX21 a great media machine for regular business travellers who need a functional machine when they reach their destination.

Asus zenbook ux21 review

One bugbear we had is with the Asus Zenbook UX21's trackpad. For an 11.6-inch laptop, it's well sized and smooth, but it's extremely sensitive. This led to some chaotic moments, where clicks were registered accidentally, so things were dragged accidentally.

This is one area where the MacBook Air prevails, and its multi-touch track pad is smart enough to work out what you're trying to do, and is seamlessly integrated with every part of the operating system.

Asus zenbook ux21 review

We were impressed to find a handy protective sleeve in the package, because the brushed metal will scratch easily, but it will do little to help protect against crushes or bangs, so it's worth upgrading to something more durable.

Tech Specs

Product TypeUltrabook
Green CompliantYes
Processor ManufacturerIntel
Graphics Controller ManufacturerIntel
Graphics Controller ModelHD 3000
BluetoothYes
Wireless LANYes
Optical Drive TypeNo
Graphics Memory AccessibilityShared
Solid State Drive Capacity128 GB
HDMIYes
WebcamYes
Backlight TechnologyLED
Product FamilyUX21
Processor Modeli5-2467M
ColourSilver
Operating SystemWindows 7
Brand NameAsus
Processor Speed1.60 GHz
Processor TypeCore i5
Screen Size29.5 cm (11.6")
Number of Cells6-cell
Screen Resolution1366 x 768
Standard Memory4 GB
Weight (Approximate)1.10 kg
Cache3 MB
Processor CoreDual-core (2 Core)
Green Compliance Certificate/AuthorityRoHS
64-bit ProcessingYes
Chipset ManufacturerIntel
Chipset ModelQS67 Express
Display Screen TypeActive Matrix TFT Colour LCD
Wireless LAN StandardIEEE 802.11b/g/n
Bluetooth StandardBluetooth 4.0
Total Number of USB Ports2
Memory StandardDDR3-1333/PC3-10600
Screen ModeWXGA
Memory TechnologyDDR3 SDRAM
Product SeriesUX21
ManufacturerASUS Computer International
Product ModelUX21E-KX004V
Product NameUX21E-KX004V Ultrabook
Aspect Ratio16:9
Manufacturer Part NumberUX21E-KX004V
Manufacturer Website Addresshttp://uk.asus.com
Battery ChemistryLithium Ion (Li-Ion)
Package Contents
  • UX21E-KX004V Ultrabook
  • Lithium Ion Battery
  • AC Adapter