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alaTest has collected and analyzed 37 reviews of SONY VAIO VGN-FZ31S. The average rating for this product is 4.2/5, compared to an average rating of 4.1/5 for other Laptops for all reviews. Views about the reliability and portability are on the whole positive. The screen and design also get good views, but the price and battery get critical reviews.

performance, design, screen, portability, reliability

battery, price

We analyzed user and expert ratings, product age and more factors. Compared to other Laptops the SONY VAIO VGN-FZ31S is awarded an overall alaScore™ of 82/100 = Very good quality.

See all Sony Laptops

Review analysis

(Based on 37 reviews)

Expert Reviews  

User Reviews  

Showing 4 review(s)

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Showing 1 - 4 of 4 Show Reviews: in English | in other languages (33)

Expert review by: Ronald Tiefenthäler (

Review Sony Vaio VGN-FZ31Z Notebook


Entertainment Notebook with blu ray drive Sony's Vaio VGN-FZ31Z i

Nice design; High-quality impression; Compact case; HDMI port; Good office performance; Very bright display; Blu ray drive

Some parts get very hot; High-frequency noise of the fan under full load; No Recovery-CD/-DVD provided; Windows installation with a lot of pre-installed software; Unnecessary trial and advertisement software

If you want to enjoy the impressing quality of high definition entertainment also on the move, the Sony Vaio is a compact and mobile 15.4 inch notebook with nice look, which is completely HD-ready. At the time of writing it is available for about...

Jul, 2008

Expert review by: Andy Vandervell (

Sony VAIO VGN-FZ31Z 15.4in Blu-ray Notebook


We take a look at Sony's top of the range 15.4in Blu-ray notebook.

All in all it's a pleasingly cohesive look; lacking the over the top chutzpah of many laptops and maintaining Sony's reputation for refined looks. That it lacks any of the glossy detailing so popular among many manufacturers is another distinct bonus....

Feb, 2011

Expert review by: (



With Blu-ray seemingly victorious, Sony's latest VAIO looks to capitalise. But PC Pro's laptops editor Sasha Muller isn't totally convinced by the result.

Apr, 2008

Expert review by: Sasha Muller (



With the memory of HD DVD rapidly fading into obscurity, consumers can now buy into Blu-ray with new confidence. And fresh from the format's recent victory, Sony has also gone about refreshing its entire range of laptops with Intel's latest Penryn 45nm...

A Blu-ray writer and Penryn processor simply can't mask the disappointing battery life and high price.

Apr, 2008

Product Specifications


Front camera resolution (numeric):1.3


Discrete graphics adapter: Yes
Maximum graphics adapter memory:0.256


Conflict Free processor: No
ECC supported by processor: No
Processor cache type:L2
Processor codename:Penryn
Processor Series:Intel Core 2 Duo T8000 series
Processor system type:Up
Thermal Design Power (TDP):35

Processor special features

Intel 64: Yes
Intel Clear Video Technology: No
Intel Virtualization Technology (VT-x):1
Intel Virtualization Technology for Directed I/O (VT-d): No
Processor ARK ID:33099
Processor package size:35