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BenQ SW320 4K SW Series 31.5inch Monitor Review

We review the new SW320 from BenQ - a 32inch monitor with 4K UHD resolution, 10bit colour, and HDR support.

|  BenQ SW320 in Display Devices
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The BenQ SW320 is a 4K 31.5inch wide-gamut colour monitor offering 99% AdobeRGB colour, 100% sRGB, 4K UHD resolution (3840x2160), plus support for High Dynamic Range (HDR 10 content), and 10bit colour. There's a darkroom and a black and white photo mode, and the monitor includes a shading hood as well as a controller, all for around £1250.

Brightness uniformity function (can be switched on/off in menus) and makes the screen brightness more uniform across the screen (without any bright spots or areas). Hardware calibration with palette master element software.

The monitor uses an IPS panel, with viewing angles of 178/178 degrees. The monitor can display 1.07 billion colours, and maximum brightness is 350cm/m2 with a contrast ratio of 1000:1. Video inputs include HDMI, DisplayPort and Mini DisplayPort, which supports continuous 10bit colour reproduction for smoother tones. Response time is 5ms grey-to-grey, which should be good for video (and gaming), as response times below 8ms are generally considered good by today's standards. The monitor also features a built in USB3 hub, and SD card reader. 

BenQ SW320 Features

BenQ SW320 Rear


The monitor is supported by an easily manoeuvrable height adjustable stand, which easily accommodates the monitor in both landscape and portrait orientation and makes it easy to find a comfortable viewing position. The design includes a route for the cables, as well as a place to put the Hotkey Puck / remote control, which plugs into a MiniUSB socket in the back of the monitor.

Designed for photography, and colour accurate work, the monitor is designed to work with BenQ's Palette Master Element software, which is used to calibrate the monitor display, and updates the monitor's LUT (Colour Look Up Tables) to ensure accurate colour is consistently displayed. The monitor is calibrated at the factory, and a sheet is provided to show the results of calibration with a maximum colour deviation of below 2 (1.69). It's a good idea to calibrate regularly and to do this using the provided software you will need to use a calibration device such as a Spyder4, 5 or i1 Display Pro. If you use multiple monitors, then it's worthwhile calibrating both devices.

BenQ SW320 Front On

DisplayPort, Mini DisplayPort, and HDMI inputs are included for connecting to various types of graphics adapters, and in order to get the full 4K UHD resolution, you'll need to ensure your computer hardware is up to the task. We used an NVidia Geforce 1050 graphics card with this monitor. When using the DisplayPort connection, simultaneous 10-bit colour display is possible, via a 14bit look-up table, which means the display is capable of displaying more than one billion colours at once. 

The monitor supports a number of calibration devices which are needed for use with the BenQ Palette Master Element software. The devices supported include: X-Rite i1 Display Pro / i1 Pro / i1 Pro 2 & Datacolor Spyder 4 and Spyder 5‎.

You'll need to download the software from BenQ's website. Unfortunately, the software isn't included on the CD in the box, which is a shame, although it does mean you will be downloading the latest version. 

For 10-bit colour you need to use the DisplayPort cable.

For HDR (High Dynamic Range) you need to use the provided HDMI cable, and with this cable, you're able to display the full resolution of 3840x2160. The BenQ SW320 manual (on CD) says that you need to "Make sure HDR content is available. Content may come from 4K UHD (Blue-Ray) or new HDR games on Xbox One S and PS4 Pro." The NVidia GeForce 1050 graphics card also supports HDR, and it looks like if you have the right games, then you might be able to play games in HDR. 

HDMI cables come in a number of different specifications, and in order to support the full resolution of the monitor you need to ensure your cable (and graphics card) is the correct type.

Key Features

  • 31.5inch matt screen 
  • 3840x2160 (UHD) native resolution 
  • 1000:1 native contrast ratio
  • 350 cd/m2 brightness, 5ms response time (GTG)
  • DisplayPort 1.4, and HDMI 2.0 inputs
  • Palette Master Element colour calibration software
  • Black-and-White photo mode, Darkroom mode
  • Wide Colour Gamut (99% AdobeRGB, 100% Rec. 709)
  • 14-bit 3D Look Up Table (LUT) 
  • "Hotkey Puck" Control (Remote)
  • Shading Hood, with gap for calibration device
  • USB 3.0 hub, Headphone jack
  • Landscape / Portrait orientation
  • 3-year warranty

BenQ SW320 Handling

BenQ SW320 Hotkey Puck
BenQ SW320 Hotkey Puck

The BenQ SW320 has a business like design at the front and back, with little flare, except for a blue ring for putting the cables through. A weight of 18.7kg is quite heavy, although the stand has no problem supporting the weight, whilst offering ease of adjustment for height, tilt and orientation. The power light and on/off button isn't too bright a white, and you can alter the brightness of this, as well as turn it off completely if you want.

BenQ SW320 Side

A cable tidy is included on the rear of the stand for keeping everything neat once it’s set up how you like. There's also a handle at the top, making it easier to lift the monitor if needed.

The monitor can swivel 45 degrees left and right, which isn't much when compared to an EIZO ColorEdge monitor, and if you regularly want to show others what's on your screen then this may feel limiting. The screen tilts down -5 degrees and up 20 degrees.

BenQ SW320 Buttons On Screen
BenQ SW320 Quick Menu and buttons

You can quickly change between calibration profiles using the remote controller, and you can set buttons 1, 2, and 3 to your preferred colour modes. There are a plethora of built-in colour modes: Standard, AdobeRGB, sRGB, Black and White, Rec. 709, DCI-P3, Darkroom, HDR, Calibration 1, Calibration 2, Custom1, Custom2, CAD/CAM, and Animation.

BenQ SW320 Ports
BenQ SW320 Rear Ports

The ports available are HDMI, Displayport, Mini DisplayPort, as well as a headphone socket, a USB upstream connection, and MicroUSB for the Hotkey remote control. There are two USB 3.0 sockets and an SD card reader on the left-hand side of the monitor.

There is no way to attach a device via an analogue connection to this display, so owners of computers using older graphics hardware (or many older Windows/Linux compatible laptops) may need to upgrade their equipment to use this monitor. A full range of cables and a hood for shading the display are provided in the box, leaving you wanting nothing, in order to set it up.

BenQ SW 320 Menus
BenQ SW320 Menus


BenQ SW320 Performance

BenQ SW320 Front White3

One of the toughest tests for any monitor is how well a monitor can display white. So we've taken a photo of the screen displaying 100% white, with white balance on the camera set using the central point of the monitor. This was taken with uniformity switched on. The monitor has a slight magenta / pink hue on the right-hand side of the monitor, and a slight green cast on the left-hand side of the monitor. 

The resolution of 3840x2160‎ provides plenty of working space, while text is just about comfortable to read due to the large size of the screen, although you may want to increase the font size on your PC. 

This resolution provides more than enough space for working with several programs on at the same time, and you can view a full 8 megapixel photo at 100% on the screen. If you regularly deal with large images, or need to view a lot of an image, in detail, then the high-resolution will be particularly useful. For 4K (UHD) video, the monitor's resolution is ideal, letting you view the full detail in the video.

Viewing angles are 178 degrees for both vertical and horizontal, which is very good. Although the viewing angle is typical for a high-end display using IPS panel technology, those who are used to the older TN panel technology will be impressed by the difference this makes. Colour and brightness remain consistent, even when viewing the screen from almost any angle.

Video quality is good with excellent blacks and good contrast, and the screen updates quickly with no visible ghosting even with rapidly changing action. There is very little backlight bleed which is common on budget orientated monitors using IPS panel technology. The matt screen surface also helps to ensure reflections are kept to a minimum, although there was a slight reflection visible with bright light sources.

Out of the box, there is a slightly cool colour to the image, which is resolved with colour calibration. Using BenQ's software Palette Master Element you need to use a calibration device to calibrate the monitor. 


BenQ SW320 Measurements and Calibration

BenQ Calibration
BenQ Calibration

Using Palette Master Element

Benq Calibration2

We used BenQ's Palette Master Element software, set the colour mode to Calibration 1, 120cd/m2, 6505K colour, and ran the calibration, with an i1 Display Pro. The results for colour temperature was 6520K, and brightness is very close to the requested 120 cd/m2 value, at 120.477 cd/m2.


Benq Validation1
Colour Validation Results

Validation Report - Using the advanced mode on Palette Master Element, you are able to measure the monitor's colour performance (Calibration 1), and we measured an average ΔE of 0.43, and a maximum ΔE of 1.01, which is excellent! 

Nb. Delta-E (ΔE) is the measurement of the difference between the expected or requested colour, and the actual colour measured by the calibration device. The lower this number, the better.

It's possible to save the results of performance as an HTML document, so that you have a record of how the monitor is performing, which could be particularly important for colour critical work, or to show that your computer and monitor is set up correctly. Or to record any changes over time.


Using i1 Display Pro to measure the performance of the monitor:

Benq Sw320 Icc Profile Results

Colour results - Black luminance was measured as 0.187cd/m2, luminance 113 cd/m2 (120 requested), and contrast ratio of 605:1. Colour temperature was 6511K, which is very close to the requested 6500K. With uniformity switched off, the luminance was 120 cd/m2.

Benq Sw320 Delta Colour Performance
Delta Colour Performance

Measuring the colour difference (Delta-E again), with the i1 Display Pro, the average was 0.51, maximum 1.15, again very impressive results. 

White point and Luminance results, and measuring uniformity across the screen:

Using the i1 Display Pro and i1 Profiler Software, 6461K was the Colour temperature achieved in the centre of the monitor, but this deviated as we measured different points on the screen. Luminance was a little off the requested 120cd/m2 being 118 cd/m2 in the centre of the frame.

Benq Sw320  Luminance Figures Benq Sw320  White Point Figures
Luminance Figures White Point Figures 
Benq Sw320  Luminance Graph Benq Sw320  White Point Graph
Luminance Graph  White Point Graph 


Brightness across the screen is consistent, with the worst result a slight deviation in brightness in one corner of 19% (top, right), with most of the screen giving better uniformity.

Colour temperature across the screen was quite good across the screen, although there was a stronger deviation in the top right of the screen. The colour difference across the screen, shown at the beginning of the performance section, which shows a magenta tint on the right-hand side of the screen, and a cyan tint on the left of the screen, also shows in the black and white mode, which may disappoint those interested in pure black and white viewing.

However, greys are good, with them looking grey, with minimal tint, unless you've moved the image to the left or right of the screen. 


We measured the BenQ SW320 with a Spyder5 Elite, and it shows as having 99% of AdobeRGB, as well as 99% of sRGB and 94% NTSC. This is good, considering the monitor is described as offering 99% AdobeRGB, and an EIZO ColorEdge CG276 managed 99% AdobeRGB (and 95% NTSC) in comparison.

We found the best colour results were from using a calibration device in combination with the Palette Master Element software, which meant the software was able to write the calibration results to the monitor's LUT.


Value For Money

The BenQ SW320 is available for £1245 including VAT, and comes with a 3-year warranty, making it good value for money compared to other monitors on the market. An alternative, colour calibrated 4K monitor, is the EIZO ColorEdge CG318-4K (31.1inch) with DCI 4K resolution, although with a price of around £3700 it is a little bit more expensive. There's also the NEC PA322UHD available for around £2665.


BenQ SW320 Verdict

The BenQ SW320 offers 4K resolution, with excellent colour performance possible, covering 99% of AdobeRGB, and 100% SRGB. Text and images are sharp, crisp and clear. Colour is excellent, although consistency could be better towards the left and right-hand sides, where there is a slight colour shift. The monitor also offers good value for money, being one of the cheapest 32inch monitors with support for the latest versions of HDMI (2.0) and DisplayPort (1.4), as well as support for HDR (High Dynamic Range) gaming. The resolution is very good at 3840x2160, with the high-resolution making it easy to use multiple windows

If you want to see more of your image, or need to view and edit 4K video, or you plan on using your monitor for 4K video watching in a living room (for example), then the size of the monitor is likely to appeal. Once calibrated the image displays excellent colour, and viewing photographs is a pleasure.

The monitor is well designed, and the remote control makes it easier and quicker to change settings, and the built-in USB3 hub with SD card reader is an excellent addition. The monitor and hood are ergonomically designed, with a stand that gives a reasonable range of adjustments, including the ability to swivel the screen into portrait orientation. For those that want an ultra high-resolution monitor to view 4K video, and edit photos, the BenQ SW320 is a great choice. The monitor is particularly suited for photographers, designers and graphic artists, and should also impress your friends. 


BenQ SW320 Pros

  • High image quality
  • 99% Adobe RGB coverage
  • Very good colour performance
  • Portrait / Landscape Orientation
  • 3-year warranty
  • Excellent value for money
  • 10-bit display when connected via DisplayPort
  • Built in USB 3 hub and SD card reader
  • Cables included in box 

BenQ SW320 Cons

  • Could tilt and rotate more
  • Palette Master Element is slow
  • Not completely uniform across the display, with tints to some areas
  • 4K resolution may be too high for some (email, text, unless you increase the text size)
  • You will need a compatible graphics card to drive the monitor
  • No DVI port

Overall Verdict


BenQ SW320 Specifications

TFT Monitor
Screen Size (Diagonal)32inches
Device TypeFlat-panel LCD/TFT
TFT TechnologyIPS
Resolution2160Pixels - 3840Pixels
Aspect Ratio16:9
Dot Pitch / Pixel Pitch0.233mm
Colour Support1.07billion
Image Contrast Ratio (Max)1000:1
Viewing Angles178/178
Input Type
  • HDMI
  • DisplayPort
  • Mini-DisplayPort
Built in SpeakersNo
USB Hub Built In
  • Yes
Power Source
Power Consumption (W)No Data
Box Contents
Box ContentsNo Data
WeightNo Data

View Full Product Details

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18 Jan 2017 1:58PM
Any chance of a review of the "Dell Ultrasharp 32 Ultra HD 4K monitor with premier colour UP 3216Q"

It seems to have a similar spec to this screen, claims 99.5% adobeRGB, and a similar price.
18 Jan 2017 10:32PM
"EIZO ColorEdge CG318-4K (31.1inch) with DCI 4K resolution, although with a price of around 3700 it is a little bit more expensive."

OR three times the price.
valeda 2
10 Nov 2017 11:33AM
Just wondering if the colour shift on the right and left sides of the screen ( BenQ monitor) was rectified after calibration?
joshwa Plus
10 923 1 United Kingdom
13 Nov 2017 8:20AM

Quote:Just wondering if the colour shift on the right and left sides of the screen ( BenQ monitor) was rectified after calibration?

No unfortunately not.
JJGEE 15 7.8k 18 England
13 Nov 2017 5:33PM
Delta Colour Performance screenshot there are outlines around a couple of the patches.

Do you know what these Red / Yellow outlines indicate ?

I get them when calibrating my iMac but the patches are not necessarily the same each time.
joshwa Plus
10 923 1 United Kingdom
14 Nov 2017 8:20AM

Quote:Delta Colour Performance screenshot there are outlines around a couple of the patches.

Do you know what these Red / Yellow outlines indicate ?

I get them when calibrating my iMac but the patches are not necessarily the same each time.

The red shows the highest ΔE, the yellow shows the second highest, so these are highlighting the worst values / colours.
Tardyfido 2 1 Australia
28 Mar 2018 8:36AM
I am interested in buying this monitor but am concerned with one of the 'cons' comments i.e. "You will need a compatible graphics card to drive the monitor". How do i know what constitutes a 'suitable' graphics card? My machine contains a AMD Ryzen5 2400G with Radeon X Vega graphics - does anyone know if this 'suitable'?

joshwa Plus
10 923 1 United Kingdom
28 Mar 2018 10:35AM
Hi Tardyfido, yes, the graphics card in your computer supports 4K displays, so will work fine,

Tardyfido 2 1 Australia
28 Mar 2018 12:01PM
Hi Josh,

Wow! What a quick response! I'm good with cameras but the computer side is certainly not my strong suit so I appreciate the timely response, I can now go out and buy one!

Thanks a million,

Terry aka Tardyfido

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