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BenQ MOBIUZ EX321UZ vs ViewSonic VX2738-2K-OLED

Product A: BenQ

MOBIUZ EX321UZ

92 of 172 known
Change BenQ MOBIUZ EX321UZ

Compare the ViewSonic VX2738-2K-OLED with

Product B: ViewSonic

VX2738-2K-OLED

77 of 172 known
Change ViewSonic VX2738-2K-OLED

Compare the BenQ MOBIUZ EX321UZ with

83 of 164 fields differ

Download CSVDownload JSON
  • 32 different values
  • 51 known for one only
  • 22 the same
  • 59 missing for both

Biggest differences

Each bar uses the scale of all 179 monitors.

  1. ContrastA: 1,500,000:1B: 150,000:1BenQ is 10 times higher.
  2. Power use (max)Lower is betterA: 300WB: 63WViewSonic is 237 W lower.
  3. Brightness (typical, SDR)A: 300nitsB: 200nitsBenQ is 100 nits higher.
  4. Power use (typical)Lower is betterA: 45WB: 62WBenQ is 17 W lower.
  5. Pixel densityA: 139.9ppiB: 108.8ppiBenQ is 31.1 ppi higher.

Refresh rate per resolution

The best rate over any port. Bars run from 0 to 1200 Hz.

3840 × 2160Native for A
A240Hz
BNot listed
2560 × 1440Native for B
ANot listed
B240Hz

Size, drawn to scale

Front and side. Solid lines show the stand at its lowest. Dashed lines show it at its highest.

Weight

0 to 15 kg

Weight with stand
A8.29kg
B5.4kg
Weight without stand
A5.99kg
B2.94kg
Box weight
A12.5kg
B7.7kg

All 172 fields

Every value links to where we found it.

ABenQ MOBIUZ EX321UZ
BViewSonic VX2738-2K-OLED

General

5 of 8 differ
Series
MOBIUZ1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Page URL and product family. BenQ MOBIUZ gaming line.
Not available
Model numbers
EX321UZ1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Page title and model name: EX321UZ. The EPREL sheet, Amazon US listing and Japanese page use the same model number.
VX2738-2K-OLED, VS210721Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026SKU VX2738-2K-OLED. The user guide names regulatory model VS21072. The ViewSonic pages for VX2738-2K without OLED describe a different IPS monitor.
GTIN / EAN
840046053161, 45444380171183Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026JAN code 4544438017118 (Japan). The 840046053161 UPC comes from the Amazon US listing.13Retailer pageamazon.com/dp/B0GLRG9NK4Read 14 October 2026UPC 840046053161 on the BenQ MOBIUZ EX321UZ listing, model number EX321UZ.
7669070395042Maker spec sheet (PDF)viewsonic.com/us/xtento_pdf/pdfPrint/product/template_id/2/product_id/16872838Read 14 October 2026Datasheet: UPC 766907039504. This is the US code.
Announced
19 September 20255Press releaseprnewswire.com/news-releases/benq-unveils-new-oled-mobiuz-series-bringing-true-game-art-and-next-gen-performance-to-life-302561213.htmlRead 14 October 2026BenQ unveiled the EX271UZ, EX271QZ and EX321UZ on September 19, 2025.
19 November 20254Press releaseviewsonic.com/us/blog/viewsonic-expands-its-gaming-line-up-with-two-new-27-inch-monitorsRead 14 October 2026Press release dated 19 November 2025. It lists availability in February and an estimated street price of 499.99 USD.
Status
Available13Retailer pageamazon.com/dp/B0GLRG9NK4Read 14 October 2026Live US listing for the exact model. Sales also started in Japan (April 2026) and India (2026-05-19).
Available1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026US product page shows In stock at 449.99 USD on 14 October 2026.
Predecessor
Not available
Not available
Successor
Not available
Not available
Launch price (US)
$1,2996Press releasebenq.com/en-us/news/monitor/mobiuz-oled-series-press-release.htmlRead 14 October 2026EX321UZ US launch price $1,299. Maker launch price, not a current selling price. Tax not stated.
$449.995Press releaseviewsonic.com/us/blog/new-viewsonic-vx-line-of-27-inch-gaming-monitors-now-shippingRead 14 October 2026Press release of 25 February 2026: available now for an estimated street price of 449.99 USD. This is an estimated street price rather than a stated MSRP. The 19 November 2025 announcement estimated 499.99 USD and a CDW listing shows a 595.00 USD list price, so the figure is a doubt.
Launch price (EU)
Not available
Not available
Markets
US, JP, IN, EU3Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Japanese maker page for the exact model.9EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2580624_EN.pdfRead 14 October 2026EU: placed on the Union market.13Retailer pageamazon.com/dp/B0GLRG9NK4Read 14 October 2026US listing.
US1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Only the US shop lists this model. The ViewSonic EU, UK and global product pages return not found.
Colours
White13Retailer pageamazon.com/dp/B0GLRG9NK4Read 14 October 2026Color: White. The BenQ product render also shows a white stand.
Not available
Segment
Gaming1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026BenQ lists the model under Monitor / Gaming.
Gaming1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Sold in the gaming monitors range. The press release calls it a gaming monitor.

Display

8 of 12 differ
Screen size
31.5in(80 cm)1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Screen Size: 31.5 inch.
27in(68.6 cm)1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Screen Size 27 inch.
Viewable screen diagonal
Not available
26.7in(67.8 cm)1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Viewable Area 26.7 in. This agrees with the 590.42 x 333.72 mm active area in the user guide. The user guide table also says 27 inch real diagonal.
Native resolution
3840 × 2160px1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Resolution (max.): 3840x2160.
2560 × 1440px1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026
Aspect ratio
16:91Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Aspect Ratio: 16:9.
16:91Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026
Pixel density
139.9ppi
108.8ppi
Pixel pitch
Not available
Not available
Active display area
Not available
Width590.42Height333.72mm(23.2 × 13.1 in)3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026Appendix, Specifications, Display Area Active Size (H x V) 590.42 x 333.72 mm. The same appendix gives a pixel pitch of 229.2 microns, which does not fit this active area (590.42 mm / 2560 = 0.2306 mm) or the 26.7 inch viewable area, so no pixel pitch is stored.
Curved
No14Retailer pagekomputronik.pl/product/1022538/monitor-benq-ex321uz.htmlRead 14 October 2026Retailer spec tab: screen type flat. The same tab lists DisplayPort 1.4, which BenQ contradicts, so it is used only for the flat screen.
Not available
Curvature radius
Not available
Not available
Screen surface
Glossy1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Display Screen Coating: Glare. The Japanese page says the same (glare). An Amazon US listing says Matte. The maker value is used.
Not available
Anti-reflection coating
Reinforced Surface2Maker product pagebenq.com/en-us/monitor/gaming/ex321uz.htmlRead 14 October 2026Overview: Reinforced Surface improves perceived black depth by 40 percent by reducing reflections and ambient light. Also a 3H hardness coating.
Anti-Glare (Haze 25%), Hard Coating (2H)3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026Appendix: Glass Surface Anti-Glare (Haze 25%), Hard Coating (2H). The product page says Anti-Reflection type, Hard-coating (2H), Haze N/A. The user guide is stored.
Touchscreen
Not available
Not available

Panel

13 of 31 differ
Panel type
QD-OLED1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Panel Type: OLED. The QD-OLED type comes from the overview page and the Japanese page.
QD-OLED1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Panel Type QD-OLED Technology. The page says it uses a self-luminous blue OLED light source that excites a quantum dot layer.
Panel type (as published)
QD-OLED2Maker product pagebenq.com/en-us/monitor/gaming/ex321uz.htmlRead 14 October 2026Overview: 4th Gen QD-OLED.
QD-OLED Technology1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026
Backlight
None (self-emissive)2Maker product pagebenq.com/en-us/monitor/gaming/ex321uz.htmlRead 14 October 2026Self-emissive QD-OLED panel. The spec page lists Panel Type: OLED.
None (self-emissive)1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026
Local dimming
Not available
Not available
Dimming zones
Not available
Not available
Panel maker
Samsung Display11Press articletftcentral.co.uk/news/benq-launch-the-mobiuz-ex-series-the-worlds-first-game-art-monitorsRead 14 October 2026TFTCentral (2025-10-09): the EX271UZ, EX321UZ and EX271QZ are all built around Samsung Display QD-OLED panels. TFTCentral guessed a 3rd Gen panel for the EX321UZ. BenQ itself says 4th Gen, which is stored.
Not available
Panel part number
Not available
Not available
Panel generation
4th Gen QD-OLED, 5-layer tandem structure2Maker product pagebenq.com/en-us/monitor/gaming/ex321uz.htmlRead 14 October 2026Overview: 4th Gen QD-OLED with a 5-layer tandem structure.7Press releasebenq.com/en-in/news/products/mobiuz-ex321uz-launch.htmlRead 14 October 20264th Gen QD-OLED panel with a 5-Layer Tandem structure.
Not available
Subpixel layout
Not available
Not available
Colour depth
10bits1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Display Colors: 1.07 billion colors, which is 10 bits per channel. The BenQ-written Amazon US bullet says 10-bit color. The method (native or FRC) is not stated.
10bits1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Colors 1.07B and Color Space Support 10 bit true. Key features: true 10 bit color depth.
Colour depth method
Not available
Native1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications say 10 bit true. Tom's Hardware lists native 10-bit.6Reviewtomshardware.com/monitors/gaming-monitors/viewsonic-vx2738-2k-27-inch-oled-reviewRead 14 October 2026Specs table: Native Color Depth and Gamut 10-bit / DCI-P3+.
Displayable colours
1.07 billion1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Display Colors: 1.07 billion colors.
1.07 billion1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026
sRGB coverage
Not available
Not available
DCI-P3 coverage
99%1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Color Gamut: 99% P3. The BenQ press release says 99% DCI-P3. Coverage or volume and CIE version are not stated.6Press releasebenq.com/en-us/news/monitor/mobiuz-oled-series-press-release.htmlRead 14 October 2026Color Accuracy: 99% DCI-P3.
Not available
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Yes1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Professional / Factory Calibration Report: Yes.
Not available
Claimed Delta E
26Press releasebenq.com/en-us/news/monitor/mobiuz-oled-series-press-release.htmlRead 14 October 2026Color Accuracy: 99% DCI-P3, Delta E < 2. Stored as 2 with the less-than qualifier here. Average or maximum is not stated.
Not available
Paper calibration report in box
Yes1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Accessories / Other Accessories lists Calibration Report.
Not available
Hardware calibration support
Not available
Not available
Static contrast ratio
1,500,000:11Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Native Contrast: 1500000:1.
150,000:11Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Static Contrast Ratio 150,000:1, as published by ViewSonic. Tom's Hardware could not measure black level or contrast.
Brightness (typical, SDR)
300nits1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Brightness (typ.): 300 nits. No window size stated.
200nits1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Brightness 200 cd/m2. The page does not state a window size. Tom's Hardware says the 200 nit rating tracks a full-field pattern with OLED APL off.
Brightness (maker minimum)
Not available
Not available
Peak brightness (HDR)
1,000nits1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Brightness (peak)(HDR): 1000 nits. Window size not stated.
Not available
HDR peak test window
Not available
Not available
Full-screen brightness
Not available
Not available
HDR formats
Not available
HDR101Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Key features: HDR10 support. No DisplayHDR certification is published.
HDR certification
DisplayHDR True Black 5001Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026HDR: VESA DisplayHDR True Black 500. The BenQ press release says HDR500. The Amazon US title says DisplayHDR 400 True Black and is not used.6Press releasebenq.com/en-us/news/monitor/mobiuz-oled-series-press-release.htmlRead 14 October 2026HDR Certification: HDR500 for the EX321UZ.
Not available
Viewing angle (horizontal)
178°1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Viewing Angle (L/R) (CR>=10): 178/178. BenQ Japan summary states 178 horizontal and vertical.15Press articlegdm.or.jp/pressrelease/2026/0327/628456Read 14 October 2026Report of the BenQ Japan announcement of 2026-03-27: viewing angle 178 degrees horizontal and vertical.
178°1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026
Viewing angle (vertical)
178°15Press articlegdm.or.jp/pressrelease/2026/0327/628456Read 14 October 2026Report of the BenQ Japan announcement of 2026-03-27: viewing angle 178 degrees horizontal and vertical.
178°1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026

Refresh rate and motion

6 of 22 differ
Refresh rate per resolution and port
ABenQ MOBIUZ EX321UZ
Refresh rate per resolution and port. The top rate is in bold.
ResolutionDisplayPort 2.1a UHBR20
3840 × 2160Native240Hz
Source7Press releasebenq.com/en-in/news/products/mobiuz-ex321uz-launch.htmlRead 14 October 2026BenQ India: 4K 240 Hz, DisplayPort 2.1a UHBR20 (80 Gbps), uncompressed 4K at ultra-high refresh rates. The 240 Hz row on DisplayPort is built from these statements. Bit depth and chroma are not stated. HDMI and USB-C maxima are not stated.11Press articletftcentral.co.uk/news/benq-launch-the-mobiuz-ex-series-the-worlds-first-game-art-monitorsRead 14 October 2026TFTCentral: the EX321UZ has DisplayPort 2.1 with UHBR20 / 80 Gbps bandwidth. The other two models use DP 1.4 with DSC.12Press articleflatpanelshd.com/news.phpRead 14 October 2026FlatpanelsHD: the 32-inch EX321UZ features DisplayPort 2.1 with 80 Gbps bandwidth to drive 4K at 240 Hz. The EX271UZ needs DP 1.4 with DSC.
BViewSonic VX2738-2K-OLED
Refresh rate per resolution and port. The top rate is in bold.
ResolutionHDMI 2.1DisplayPort 1.4
2560 × 1440Native240Hz240Hz
Source1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Refresh Rate 240Hz, PC Resolution (max) 2560 x 1440 and Frequency Vertical HDMI 2.1 & DisplayPort = 48 ~ 240 Hz. The user guide timing list includes 2560 x 1440 at 240 Hz. The per-input maximum is read from the vertical frequency row. Bit depth, chroma and DSC use are not stated. The horizontal frequency limits in the same table (HDMI 255 kHz, DisplayPort 297 kHz) are too low for 2560 x 1440 at 240 Hz and look generic, so the vertical frequency figure is the only evidence per input. The DisplayPort version comes from Tom's Hardware.
Max refresh rate
240Hz
240Hz
Max refresh rate at native resolution
240Hz
240Hz
Max refresh rate over DisplayPort
240Hz
240Hz
Max refresh rate over HDMI
Not available
240Hz
Max refresh rate over USB-C
Not available
Not available
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Refresh Rate (Hz): 240. No overclock mode is stated.
240Hz1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Refresh Rate 240Hz.
Overclocked refresh rate
Not available
Not available
Dual mode
Not available
No1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Only 240 Hz at 2560 x 1440 is published. The Esports Mode shrinks the viewable area to 24.5 inch and is not a resolution mode.
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
FreeSync Premium Pro, HDMI VRR1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Gaming / FreeSync Premium Pro: Yes. HDMI VRR comes from the overview page.2Maker product pagebenq.com/en-us/monitor/gaming/ex321uz.htmlRead 14 October 2026Overview: Variable Refresh Rate on HDMI. Spec page: FreeSync Premium Pro.
FreeSync Premium, G-SYNC Compatible1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Page: NVIDIA G-SYNC Compatible and AMD FreeSync Premium. The FreeSync Premium toggle is in the Setup menu of the user guide.
VRR range per port
Not available
Not available
Low framerate compensation
Not available
Not available
Response time (maker GtG claim)
0.03ms1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Response Times (GtG): 0.03 ms. No endpoints or settings stated.
0.03ms1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Response Time (Typical GTG) 0.03ms.
Response time (maker MPRT claim)
Not available
Not available
Overdrive settings
Not available
Not available
Motion blur reduction
Yes1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Gaming / Motion Blur Reduction: Yes.
Not available
Blur-reduction technology
Blur Reduction2Maker product pagebenq.com/en-us/monitor/gaming/ex321uz.htmlRead 14 October 2026Overview: Blur Reduction, listed with Crosshair and FPS Counter.
Not available
Blur reduction works with VRR
Not available
Not available
Flicker-free (claimed)
Yes1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Eye Care / Flicker-free Technology: Yes. TUV certificate lists Flicker-free.
Yes1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Page: Flicker-Free technology and a Blue Light Filter.
Black frame insertion
Not available
Not available

Measured

2 of 12 differ
Input lag at maximum refresh rate
Not available
Not available
Input lag at 60 Hz
Not available
Not available
Average response time (measured)
Not available
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
Not available
SDR brightness (measured)
Not available
381nits7Measurementtomshardware.com/monitors/gaming-monitors/viewsonic-vx2738-2k-27-inch-oled-review/3Read 14 October 2026Page 3, uncalibrated at maximum backlight level: a 25% window measured 381 nits with OLED APL (variable brightness) on. With OLED APL off a full-field pattern tracks the 200 nit rating. Firmware, connection and the exact picture mode are not stated. The review is dated 17 June 2026.
HDR brightness in a real scene (measured)
Not available
Not available
PWM flicker frequency (measured)
Not available
Not available
VRR range (measured)
Not available
Not available
Colour accuracy (measured Delta E)
Not available
4.498Measurementtomshardware.com/monitors/gaming-monitors/viewsonic-vx2738-2k-27-inch-oled-review/4Read 14 October 2026Page 4, Calman gamut test before calibration: 4.49 dE, improving to 1.44 dE after calibration. The Delta E formula and reference colour space are not stated. The monitor has no sRGB mode and its gamut is about 109% of DCI-P3 by volume. Grayscale started at 5.01 dE.
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available

Connectivity

13 of 19 differ
Video inputs
ABenQ MOBIUZ EX321UZ
TypeVersionCountMax bandwidth (Gbps)HDCP
HDMI2.12Not available2.3
DisplayPort2.1a UHBR201802.3
USB-CNot available1Not available2.3
Source1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Connectivity: HDMI 2.1 eARC x1, HDMI 2.1 x1, DisplayPort 2.1 x1, USB-C (PD 90W, DisplayPort Alt Mode, Data) x1. HDCP 2.3 is listed once for the monitor and is applied to each input.7Press releasebenq.com/en-in/news/products/mobiuz-ex321uz-launch.htmlRead 14 October 2026DisplayPort 2.1a UHBR20 (80 Gbps) and HDMI 2.1 with eARC.11Press articletftcentral.co.uk/news/benq-launch-the-mobiuz-ex-series-the-worlds-first-game-art-monitorsRead 14 October 2026DisplayPort 2.1 with UHBR20 / 80 Gbps.
BViewSonic VX2738-2K-OLED
TypeVersionCountDSC
HDMI2.12Not available
DisplayPort1.42Yes
Source1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: HDMI 2.1 In 2 and DisplayPort 2. The page does not give a DisplayPort version. Tom's Hardware gives DisplayPort 1.4 with DSC. HDCP versions and bandwidth are not published.6Reviewtomshardware.com/monitors/gaming-monitors/viewsonic-vx2738-2k-27-inch-oled-reviewRead 14 October 2026Specs table: 2x DisplayPort 1.4 w/DSC and 2x HDMI 2.1. The text says the DisplayPort inputs support Display Stream Compression. No USB ports.
HDMI ports
2
2
DisplayPort ports
1
2
Highest HDMI version
2.1
2.1
Highest DisplayPort version
2.1a UHBR20
1.4
HDMI features
eARC, VRR, ALLM, CEC1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026HDMI (v2.1) eARC on one port. ALLM, VRR and CEC come from the overview page and the Japanese page.2Maker product pagebenq.com/en-us/monitor/gaming/ex321uz.htmlRead 14 October 2026Overview: Auto Low Latency Mode, Variable Refresh Rate, Consumer Electronics Control and Enhanced Audio Return Channel.3Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Japanese product page: HDMI 2.1 with VRR and ALLM, and eARC.4Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz.htmlRead 14 October 2026Japanese overview: HDMI 2.1 (VRR/ALLM), DP 2.1, USB Type-C (DisplayPort Alt Mode, 90 W), KVM, eARC.11Press articletftcentral.co.uk/news/benq-launch-the-mobiuz-ex-series-the-worlds-first-game-art-monitorsRead 14 October 2026TFTCentral: HDMI 2.1 supports consoles with features like VRR and ALLM, and eARC is mentioned.
Not available
USB-C video (DP Alt Mode)
Yes1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Connectivity: USB C (PowerDelivery 90W, DisplayPort Alt Mode, Data).
Not available
USB-C power delivered
90W1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Power Delivery (USB C / Thunderbolt): 90. Also USB C (PowerDelivery 90W).
Not available
Thunderbolt
Not available
Not available
USB upstream ports
ABenQ MOBIUZ EX321UZ
ConnectorUSB versionCount
USB-C3.2 Gen 11
USB-CNot available1
Source1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026USB Type-C Upstream (USB 3.2 Gen 1, 5 Gbps, Data only) x1. The video USB-C port also carries data. Its USB version is not stated.
BViewSonic VX2738-2K-OLED
Not available
USB downstream hub ports
ABenQ MOBIUZ EX321UZ
ConnectorUSB versionCount
USB-A3.2 Gen 12
USB-C3.2 Gen 11
Source1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026USB Type-A Downstream (USB 3.2 Gen 1, 5 Gbps, 4.5 W charging) x2 and USB Type-C Downstream (USB 3.2 Gen 1, 5 Gbps, 7.5 W charging) x1.
BViewSonic VX2738-2K-OLED
Not available
KVM switch
Yes1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Professional / KVM Switch: Yes. A third-party review lists no KVM. The maker value is used.
Not available
Daisy chain (MST)
Not available
Not available
Ethernet
No1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026The Connectivity list on the spec page (2 HDMI, DisplayPort, USB-C, USB upstream, USB downstream) has no Ethernet port.
Not available
3.5 mm headphone output
Yes1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Audio / Headphone Jack: Yes.
Yes1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: 3.5mm Audio Out 1.
3.5 mm microphone input
Not available
Not available
Optical out
No1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026The Connectivity list on the spec page has no optical output. HDMI eARC is a different connection.
Not available
Picture in picture
Not available
Yes3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026OSD tree, Setup Menu, Multi-Picture, 2P PIP with source, region, position and size options.
Picture by picture
Not available
Yes3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026OSD tree, Setup Menu, Multi-Picture, PBP Left-Right.

Smart features

1 of 4 differ
Smart platform
Not available
Not available
Wi-Fi
Not available
Not available
Bluetooth
Not available
Not available
Remote control
Yes1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Accessories lists Remote Control.
Not available

Audio and camera

3 of 5 differ
Speakers
Not available
Yes1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Internal Speakers 2W (x2).
Number of speakers
Not available
21Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026
Speaker power per channel
Not available
2W1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026
Webcam
Not available
Not available
Microphone
Not available
Not available

Ergonomics and controls

10 of 15 differ
Stand height adjustment
100mm1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Height Adjustment Stand: 100 mm.
130mm1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Height Adjust 130 mm / 5.1 in.
Tilt
Forward5°Backward15°1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Tilt (down/up): -5 to 15 degrees. Stored as 5 forward and 15 backward.
Forward5°Backward20°1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Tilt (Forward/Back) 5 degrees / 20 degrees.
Swivel
Left15°Right15°1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Swivel (left/right): 15/15.
Left45°Right45°1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Swivel -45 ~ 45.
Pivot
Not available
Counterclockwise90°Clockwise90°1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Pivot (Right/Left) 90 degrees / 90 degrees.
Removable stand
Not available
Yes3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026Tom's Hardware: the stand snaps onto a 100 mm VESA mount and four fasteners are supplied for arm use. The user guide has a wall mount dimension of 100 x 100 mm.
VESA mount
100 x 1001Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026VESA Wall Mount: 100x100 mm.
100 x 1001Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: VESA Compatible 100 x 100 mm.
VESA adapter needed
Not available
Not available
Security lock slot
Not available
Yes1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Kensington Lock Slot 1.
On-screen menu controls
Not available
Joystick1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Physical Controls joystick key (up, right, down, left, center) and power.
Desktop software
Color Shuttle, Display QuicKit1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Software: Color Shuttle and Display Quickit. The Japanese page spells it Display QicKit. Stored as Display QuicKit, as on the US page.3Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Software: Color Shuttle and Display QicKit.4Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz.htmlRead 14 October 2026Firmware updates run through BenQ Display QicKit. Color Shuttle runs Smart Game Art.
Not available
User firmware updates
Yes1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Professional / FW update by USB: Yes.
Not available
Ambient light sensor
Not available
Not available
Presence sensor
Not available
Not available
RGB lighting
Not available
Not available
Gaming menu features
Crosshair, FPS Counter, Light Tuner, Color Vibrance1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Gaming: Light Tuner, Color Vibrance. Crosshair and FPS Counter come from the overview page.2Maker product pagebenq.com/en-us/monitor/gaming/ex321uz.htmlRead 14 October 2026Overview: Crosshair, FPS Counter and Blur Reduction.
Aim Point, Esports Mode (24.5-inch viewable screen), Black Stabilization, Game presets FPS, RTS and MOBA3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026Joy Key hot key turns Aim Point on and off. The Game ViewMode has FPS, RTS and MOBA presets and a Black Stabilization slider. The press release names the Esports Mode that switches the viewable screen to 24.5 inch.

OLED care

1 of 3 differ
OLED care
Pixel Refresh, Idle Dimmer, Logo Dimming, Pixel Shift2Maker product pagebenq.com/en-us/monitor/gaming/ex321uz.htmlRead 14 October 2026Overview: Intelligent OLED Protection Suite. Pixel Refresh, Idle Dimmer, Logo Dimming, Pixel Shift.
PXL Orbit (OLED Screen Movement), OLED Image Cleaning, Static Icon Detection, Static Screen Detection (automatic dimming)1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Page: PXL Orbit moves pixels, Static Screen Detection dims the display when idle. The user guide Manual Image Adjust menu lists OLED Screen Movement, OLED Image Cleaning, OLED APL and Static Icon Detection. The page also mentions break reminder prompts.
Burn-in covered by warranty
Not available
Not available
Burn-in warranty length
Not available
Not available

Dimensions and weight

6 of 7 differ
Dimensions with stand
Width718.88Depth223.48mm(28.3 × 8.8 in)1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Dimensions (HxWxD) with base: 598.14 x 718.88 x 223.48 mm. Only width and depth are stored. The page does not say if 598.14 is the lowest or highest stand position.
Width611.11Height (lowest)401.1Height (highest)531.1Depth250mm(24.1 × 15.8 to 20.9 × 9.8 in)1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Physical 611.11 x 401.1~531.1 x 250.0 mm (W x H x D). The 130 mm height adjustment equals the span of 401.1 to 531.1 mm, so 401.1 is the lowest and 531.1 the highest stand position.
Dimensions without stand
Width718.88Height418.14Depth82.93mm(28.3 × 16.5 × 3.3 in)1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Dimensions (HxWxD) (w/o Base): 418.14 x 718.88 x 82.93 mm.
Width611.11Height354.1Depth53.59mm(24.1 × 13.9 × 2.1 in)1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Physical Without Stand 611.11 x 354.1 x 53.59 mm.
Stand footprint
Not available
Not available
Weight with stand
8.29kg(18.3 lb)1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Net Weight (kg): 8.29. Cables not mentioned.
5.4kg(11.9 lb)1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Net 5.4 kg.
Weight without stand
5.99kg(13.2 lb)1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Net Weight (w/o Base) (kg): 5.99.
2.94kg(6.5 lb)3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026Appendix: Weight (without stand) 2.94 kg. The product page rounds to 2.9 kg.
Box dimensions
Width980Height515Depth188mm(38.6 × 20.3 × 7.4 in)3Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Packaging size (HxWxD) 515 x 980 x 188 mm. Stored as width 980, height 515, depth 188.
Not available
Box weight
12.5kg(27.6 lb)3Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Packaging weight 12.5 kg.
7.7kg(17 lb)1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Gross 7.7 kg. The published packaging size 549 x 508 x 158 mm is not stored because a 611 mm wide monitor cannot fit inside it.

Power

10 of 13 differ
Power supply
Internal1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Power Supply: Built-in.9EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2580624_EN.pdfRead 14 October 2026Row 24: Internal.
External adapter1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Power Supply External, Voltage DC 24V.
Adapter rating
Not available
Not available
Input voltage
100-240 V1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Voltage Rating: 100 - 240V. Frequency not stated.
100-240 V AC, 50/60 Hz3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026Appendix: Input Voltage AC 100-240V, 50/60 Hz (auto switch).
Power use (typical)
45W1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Power Consumption (normal): 45 W. Test condition not stated.
62W1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Consumption (typical) 62w. The user guide gives 61 W typical without audio and 62 W with 100% audio, following EEI test conditions. Tom's Hardware measured 23.6 W at 200 nits, which is a different test.
Power use (max)
300W1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Power Consumption (max): 300 W. USB load not stated.
63W1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Consumption (max) 63w.
Power use SDR (EU label)
35W9EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2580624_EN.pdfRead 14 October 2026Row 4: on mode power in SDR 35.0 W.
Not available
Power use HDR (EU label)
36W9EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2580624_EN.pdfRead 14 October 2026Row 6: on mode power in HDR 36.0 W.
Not available
Standby power
0.5W1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Power Consumption (sleep mode): <0.5 W on this page. EPREL gives standby 0.5 W, which is stored.9EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2580624_EN.pdfRead 14 October 2026Row 8: standby 0.5 W.
0.5W3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026Appendix: Standby at most 0.5 W. The product page lists Stand-by 0.3 W.
Off-mode power
0.3W9EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2580624_EN.pdfRead 14 October 2026Row 7: off mode 0.3 W.
0.3W3Owner's manualviewsonicglobal.com/public/products_download/user_guide/display/VX2738-2K-OLED/VX2738-2K-OLED_UG_ENG.pdfRead 14 October 2026Appendix: Off at most 0.3 W.
EU energy class SDR
G9EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2580624_EN.pdfRead 14 October 2026Row 3: class G.
Not available
EU energy class HDR
G9EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2580624_EN.pdfRead 14 October 2026Row 5: class G.
Not available
Energy per 1000 h SDR
35kWh10EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2580624.pdfRead 14 October 2026Printed label: 35 kWh/1000h.
Not available
Energy per 1000 h HDR
36kWh10EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2580624.pdfRead 14 October 2026Printed label: 36 kWh/1000h.
Not available

Certifications

3 of 9 differ
VESA ClearMR
Not available
Not available
VESA AdaptiveSync Display
Not available
Not available
TÜV certifications
Flicker-free, Low Blue Light (Hardware Solution)1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Certification / TUV Certificate: Flicker-free, Low Blue light (Hardware Solution).
Not available
Low blue light
Hardware1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Eye Care / Low Blue Light: Yes. TUV Certificate: Low Blue light (Hardware Solution).
Software1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Page and user guide: a Blue Light Filter slider in the OSD.
ENERGY STAR
Not available
Not available
TCO Certified
Not available
Not available
EPEAT
Not available
Not available
Colour certifications
Not available
Not available
Other certifications
Not available
cTUVus, FCC-B, ICES003, CEC, NRCan1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Regulations cTUVus, FCC-B, ICES003, CEC, NRCan.

In the box

2 of 2 differ
In the box
Clean Cloth, Quick Start Guide, Calibration Report, Remote Control, Safety Instruction, Power cable, HDMI 2.1 cable, DisplayPort 2.1 cable1Maker product pagebenq.com/en-us/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Accessories: Clean Cloth, QSG, Calibration Report, Remote Control, Safety Instruction. Signal cables (DP 2.1, HDMI v2.1) may vary by region. The page does not list the monitor, stand or power cable. The power cable comes from the Japanese page.3Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Included cables list.
VX2738-2K-OLED Display, Power Cable, AC/DC Adapter, DisplayPort Cable, Quick Start Guide1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Specifications: Package Contents. The user guide says included cables vary by country.
Cables included
ABenQ MOBIUZ EX321UZ
Type
Power cable (about 1.8 m)
HDMI 2.1 cable (about 1.8 m)
DisplayPort 2.1 cable (about 1.8 m)
Source3Maker product pagebenq.com/ja-jp/monitor/gaming/ex321uz/spec.htmlRead 14 October 2026Included cables: power cable (about 1.8 m), HDMI 2.1 cable (about 1.8 m), DisplayPort 2.1 cable (about 1.8 m). Counts are not stated. The US page says signal cables vary by region.
BViewSonic VX2738-2K-OLED
Type
Power Cable
DisplayPort Cable
Source1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026Package Contents list a power cable and a DisplayPort cable. Counts are not stated.

Warranty

0 of 2 differ
Manufacturer warranty (source market)
3years7Press releasebenq.com/en-in/news/products/mobiuz-ex321uz-launch.htmlRead 14 October 2026BenQ India states a 3-Year OLED Warranty. Burn-in coverage is not stated by BenQ.13Retailer pageamazon.com/dp/B0GLRG9NK4Read 14 October 2026Warranty Type: 3 Years Manufacturer Warranty. US listing.
3years1Maker product pageviewsonic.com/us/vx2738-2k-oled.htmlRead 14 October 2026
Dead pixel policy
Not available
Not available

Both are also in the API. Back to all monitors.