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Asus Zenbook Prime UX31A review

Asus gives the Zenbook Ultrabook an Ivy Bridge chip and 1080p screen

The original Asus Zenbook UX21 really helped to make the case for Ultrabooks, showing that if you want a speedy, thin, light laptop you don't have to buy an Apple MacBook Air.

The Asus Zenbook Prime UX31A is a natural successor, with a faster processor and graphics, and additional USB 3.0 port, more storage space and that vastly upgraded screen.

The result is that, unsurprisingly, the Asus Zenbook Prime comes with a premium price. And it very nearly meets it with a premium product, but falls short in one very important area - the battery.

We liked

The Asus Zenbook Prime UX31A's screen, of course, is the big showpiece. It's not just the resolution, but the overall quality. Great colours, excellent viewing angles, good contrast ratio - at 13.3 inches, it's a 1080p masterpiece.

Performance really is just as speedy as you'd hope, with Windows 7 picking up almost instantly from standby, and even booting barely giving you a wait.

Really importantly, it's also comfortable and pleasant to use. The trackpad is good, the keyboard is great, and it's made really well.

We disliked

There's one major and obvious letdown with the Zenbook Prime: the battery life. Though in practice, with very light use, you'll get more out of it than we did in our benchmarks, it's still badly behind the competition - even the much, much cheaper competition.

The speakers are disappointing, too, and it's a shame that Asus includes so much irritating bloatware on its machines.

The price is an issue, as well, especially in light of the battery life. The Asus Zenbook Prime UX31A isn't inherently overpriced at £1,500/$1,500 when you compare it to other high-end Ultrabooks, but you have to ask whether you're happy spending that much money for this kind of machine.

For many people, it'll be secondary to larger, more powerful computer - you'd have to ask, do you really need to spend this much? And if you do, will the battery life be good enough for you?

Final verdict

The Asus Zenbook Prime UX31A is a premium computer with a price tag to match. The build quality is excellent, the performance is great for an Ultrabook and the screen is top-notch.

Sadly, the battery life makes you think twice about its good points when you're spending that amount of money - we're just not sure that it's worth it for all that many people.

If you want a high-end Ultrabook, we recommend the Asus Zenbook Prime UX31A as long as battery life isn't your main concern. If you just want an Ultrabook, we suggest starting a bit lower, with its little brother, the Asus Zenbook UX32A.

Tech Specs

Product TypeUltrabook
Green CompliantYes
Processor ManufacturerIntel
Graphics Controller ManufacturerIntel
Graphics Controller ModelHD 4000
BluetoothYes
Wireless LANYes
Graphics Memory AccessibilityShared
Solid State Drive Capacity256 GB
HDMIYes
WebcamYes
Backlight TechnologyLED
Product FamilyZENBOOK UX31
Keyboard BacklightYes
Processor Modeli7-3517U
Operating SystemWindows 7 Home Premium
Brand NameAsus
Processor Speed1.90 GHz
Processor TypeCore i7
Screen Size33.8 cm (13.3")
Number of Cells4-cell
Screen Resolution1920 x 1080
Standard Memory4 GB
Weight (Approximate)1.30 kg
Cache4 MB
Processor CoreDual-core (2 Core)
Green Compliance Certificate/AuthorityRoHS
64-bit ProcessingYes
Chipset ManufacturerIntel
Chipset ModelHM76 Express
Display Screen TypeActive Matrix TFT Colour LCD
Display Screen TechnologyIn-plane Switching (IPS) Technology
Wireless LAN StandardIEEE 802.11n
Bluetooth StandardBluetooth 4.0
Ethernet TechnologyFast Ethernet
Total Number of USB Ports2
Memory StandardDDR3-1600/PC3-12800
Height18 mm
Width325 mm
Depth223 mm
Screen ModeFull HD
Memory TechnologyDDR3 SDRAM
Product SeriesUX31
ManufacturerASUS Computer International
Product ModelUX31A-R4003V
Product NameZENBOOK UX31A-R4003V Ultrabook
Pointing Device TypeTouchPad
Product LineZENBOOK
Aspect Ratio16:9
Manufacturer Part NumberUX31A-R4003V
Manufacturer Website Addresshttp://uk.asus.com
Marketing Information

Singularly impactful beauty

Setting new standards in technology and fashion, ZENBOOK Prime measures just 3mm front and 9mm back. It uses precision-crafted aluminum throughout its monoshell build, ensuring light durability. The cover features finely-etched concentric circles that embody the infinite nature of Zen thinking, and the entire design has been optimized to offer a holistic approach towards combining beauty with speed, and balancing work with play. To maintain this look and feel, ASUS has developed a lineup of ZENBOOK Prime accessories that are just as attractive and sophisticated.
Battery ChemistryLithium Polymer (Li-Polymer)
Package Contents
  • ZENBOOK UX31A-R4003V Ultrabook
  • Lithium Polymer Battery
  • AC Adapter