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alaTest has collected and analyzed 10 reviews of Sony VAIO VGN-Z31MN/B. The average rating for this product is 4.4/5, compared to an average rating of 4.1/5 for other products in the same category for all reviews. Reviewers really like the durability and size. The performance and design are also mentioned favorably, but there are some less positive views about the connectivity and price.

portability, design, performance, size, durability

battery, price, connectivity

We analyzed user and expert ratings, product age and more factors. Compared to other products in the same category the Sony VAIO VGN-Z31MN/B is awarded an overall alaScore™ of 76/100 = Good quality.

See all Sony Laptops

Review analysis

(Based on 10 reviews)

Expert Reviews  

User Reviews  

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Expert Reviews User Reviews


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Showing 1 - 8 of 8 Show Reviews: in English | in other languages (2)

Consumer review (

Sony Vaio VGN-Z31MN


I love the design of this machine. I've owned previous Sony models but this is just outstanding! Sony claim that this is their ultra portable and high end machines, well, it's true and performance is brilliant! I brought a Toshiba ultra portable and an...

None whatsoever!

Jan, 2010

Consumer review (

Sony Vaio VGN-Z31MN


its a super smart looking computer, its totally ace

Dec, 2009

Consumer review (

Sony Vaio VGN-Z31MN


Style, speed and size

Have not found any yet

Dec, 2009

Consumer review (

Sony Vaio VGN-Z31MN


Size, design,


Nov, 2009

Consumer review (

Sony Vaio VGN-Z31MN


terrific product

difficulties upgrading to Windows 7 - modem would not work. Took hours trying to resolve. should have come with a European adaptor

Nov, 2009

Consumer review (

Sony Vaio VGN-Z31MN


Design size portability and relative durability Good wi-fi performance

Pre loaded TRIAL software has to be removed before loading ones own software Everywair expects you to purchase expensive air time. Why not make sim card slott compatable with all types. System charger still HUGE

Oct, 2009

Consumer review (

Sony Vaio VGN-Z31MN


Compact, fast, quiet and a great keyboard... As usual Sony deliver a laptop a cut above the rest in terms of style but at a price...


Oct, 2009

Consumer review (

Sony Vaio VGN-Z31MN


Size, design


Oct, 2009

Product Specifications


Audio system:High Definition Audio
Number of built-in speakers:2


Battery life (max):5.5
Battery recharge time:3.75


Front camera resolution (numeric):0.3
Video capturing speed:15


Aspect Ratio:16:9
Display Diagonal:13
Display Resolution:1366 x 768
Display surface:Matt


Discrete graphics adapter:Y
Discrete graphics adapter memory:128
Discrete graphics adapter model:NVIDIA GeForce 9300M GS
Maximum graphics adapter memory:1370
On-board graphics adapter: No
On-board graphics adapter model: No


Pointing device:Touchpad


Internal memory:4
Internal memory type:DDR3-SDRAM
Maximum internal memory:4
Memory clock speed:1066
Memory layout:2 x 2
Memory layout (slots x size):2 x 2


Bluetooth: Yes
Bluetooth version:2.1+EDR
Cabling technology:
Networking features:WLAN, Gigabit Ethernet, Bluetooth

Optical Drive

CD read speed:24
CD-R read speed:24
CD-R write speed:24
CD-RW read speed:24
CD-RW write speed:16
DVD read speed:8
DVD-R Double Layer read speed:8
DVD-R Double Layer write speed:4
DVD-R read speed:8
DVD-R write speed:8
DVD-RAM read speed:5
DVD-RAM write speed:5
DVD-RW read speed:8
DVD-RW write speed:6
DVD+R Double Layer read speed:8
DVD+R Double Layer write speed:4
DVD+R write speed:8
DVD+RW read speed:8
DVD+RW write speed:8

Other Features

Audio system:High Definition Audio
Battery Type:VGP-BPS12
Graphics adapter family:NVIDIA
Hard disk drive, user password: Yes
HDD user password:Y
Infrared data port: No
Internal modem: Yes
Modem Speed:56
Modem Type:V.92/V.90
TV in port: No
Webcamera description:640 x 480 (VGA)
Wireless Technology:IEEE 802.11a/b/g/n, 7,2 Mb/s (HSDPA, UMTS, EDGE, GPRS)

Ports & interfaces

CardBus PCMCIA slot type: No
DC-in jack: Yes
Docking connector: Yes
DVI port: No
Ethernet LAN (RJ-45) ports:1
Ethernet LAN (RJ-45) ports quantity:1
ExpressCard slot: Yes
Firewire (IEEE 1394) ports:1
HDMI ports quantity:1
Headphone outputs:1
Microphone in: Yes
Modem (RJ-11) ports:1
S/PDIF out port: No
SmartCard slot: No
USB 2.0 ports quantity:2
VGA (D-Sub) ports quantity:1


Bus type:FSB
Chipset:Intel GM45 Express
Conflict Free processor:N
CPU multiplier (bus/core ratio):9
ECC supported by processor:N
FSB Parity: No
Motherboard chipset:Intel GM45 Express
Number of Processing Die Transistors:410
Processing die size:107
Processor cache:6
Processor cache type:L2
Processor codename:Penryn
Processor cores:2
Processor family:Intel Core 2 Duo
Processor frequency:2.4
Processor front side bus:1066
Processor lithography:45
Processor model:P8600
Processor operating modes:64-bit
Processor series:Intel Core 2 Duo P8000 series
Processor socket:Socket 479
Processor threads:2
Thermal Design Power (TDP):25

Processor special features

Embedded options available: No
Enhanced Intel SpeedStep Technology: Yes
Execute Disable Bit: Yes
Idle States: Yes
Intel 64:Y
Intel AES New Instructions: No
Intel Anti-Theft Technology: No
Intel Clear Video HD Technology: No
Intel Clear Video Technology:N
Intel Clear Video Technology for MID: No
Intel Demand Based Switching: No
Intel Dual Display Capable Technology: No
Intel Enhanced Halt State: Yes
Intel Fast Memory Access: No
Intel FDI Technology: No
Intel Flex Memory Access: No
Intel Hyper-Threading Technology: No
Intel Insider: No
Intel InTru 3D Technology: No
Intel My WiFi Technology: No
Intel Quick Sync Video Technology: No
Intel Rapid Storage Technology: No
Intel Trusted Execution Technology: Yes
Intel Turbo Boost Technology: No
Intel Virtualization Technology (VT-x):Y
Intel Virtualization Technology for Directed I/O (VT-d):N
Intel vPro Technology: No
Intel VT-x with Extended Page Tables (EPT): No
Intel Wireless Display (WiDi) Technology: No
Intel® AES New Instructions (Intel® AES-NI):N
Intel® Anti-Theft Technology (Intel® AT):N
Intel® Clear Video HD Technology (Intel® CVT HD):N
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID):N
Intel® Hyper Threading Technology (Intel® HT Technology):N
Intel® Insider™: No
Intel® InTru™ 3D Technology:N
Intel® My WiFi Technology (Intel® MWT):N
Intel® Quick Sync Video Technology: No
Intel® Turbo Boost Technology: No
Intel® vPro™ Technology:N
Intel® Wireless Display (Intel® WiDi):N
InTru™ 3D Technology: No
Processor ARK ID:35568
Processor code:SL3BV
Processor package size:35
Thermal Monitoring Technologies: No


Cable lock slot:Kensington
Fingerprint reader: Yes
Trusted Platform Module (TPM): Yes


Bundled software:Windows Media Player 11,WinDVD 8, Google Picasa, Easy Media Creator 10, Adobe Reader 8.1, Adobe Standard 8, Microsoft Office Ready 2007, VAIO Recovery Utility
Drivers included: Yes
Operating system installed:Windows Vista Business
Trial software:McAfee Internet Security Suite


Card reader integrated: Yes
Compatible memory cards:SD
Hard disk rotational speed:5400
Hard Drive Interface:Serial ATA
Hard drive speed:5400
Host interface:SATA
Number of hard drives installed:1
Total Storage Capacity:250

Weight & Dimensions

Height (front):1
Height (rear):1