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Samsung LC34J791WTPXXU reviews
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Compare Samsung LC34J791WTPXXU reviews, specifications and available UK retailer offers. Check the details for this exact model and follow the original critics’ findings.
Manufacturer codeLC34J791WTPXXU
The product, explained
About the Samsung LC34J791WTPXXU
Samsung LC34J791WTPXXU is listed in the computer monitors category. The recorded specifications include display diagonal: 86.4 cm (34"); display resolution: 3440 x 1440 pixels; panel type: VA; maximum refresh rate: 100 Hz. This entry covers manufacturer code LC34J791WTPXXU. Specifications relate to this exact source record; other editions or packages may differ.
The 86.4 cm (34") display is specified at 3440 x 1440 pixels. Consider these together: a larger screen provides more physical space, while resolution determines the number of pixels available. Neither specification establishes brightness, colour accuracy or motion quality.
The listed maximum refresh rate is 100 Hz. To use it, the source device, cable, resolution and input must all support the intended mode. Refresh rate is separate from response time and input lag.
- Screen size
- 86.4 cm (34")
- Screen resolution
- 3440 x 1440 pixels
- Panel type
- VA
- Maximum refresh rate
- 100 Hz
- Response time
- 4 ms
- Display brightness (typical)
- 300 cd/m²
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Independent perspectives
Expert reviews 0
Independent ratings, converted to the same five-point scale. Each card links to the original review and identifies the available evidence.
No scored critic reviews have been imported for this exact product yet. It remains unrated.
Independent reviews, made comparable
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One consistent scale makes different publishers’ ratings easier to compare. The original review still tells you why a critic reached that verdict.
Read our scoring methodology →Scale conversion · example
8/ 104.00/ 5
An illustration of conversion, not this product’s rating.
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Compare on one scale
Convert usable ratings to five points, count each publisher once and give each critic equal weight.
Require three critics
Show the average to two decimal places after three distinct critics. Otherwise display tbd, keeping individual reviews visible.
Find the best fit by considering the score alongside the critic count, review dates, tested version and the strengths that matter to you. Eligible model-level reviews identify the tested configuration. Reviews of different hardware are shown separately and do not enter this product’s COR Score.
Know exactly what you’re buying
Samsung LC34J791WTPXXU specifications
Manufacturer code: LC34J791WTPXXU · Icecat product 108388010 · Checked 18 Sep 2026. Specifications belong to this exact model.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
| Screen size | 86.4 cm (34") |
|---|---|
| Screen resolution | 3440 x 1440 pixels |
| Panel type | VA |
| Maximum refresh rate | 100 Hz |
| Response time | 4 ms |
| Display brightness (typical) | 300 cd/m² |
| HDMI ports | 1 |
| DisplayPort connections | 1 |
More product specifications
Open a section for the details that matter to you.
Audio & listening2 details
| Built-in speakers | Yes |
|---|---|
| Headphone out | Yes |
Display9 details
| Display technology | LED |
|---|---|
| Screen shape | Curved |
| Screen curvature rating | 1200R |
| Contrast ratio (typical) | 3000:1 |
| Viewing angle, horizontal | 178° |
| Viewing angle, vertical | 178° |
| Display number of colours | 16.7 million colours |
| Display diagonal (metric) | 86 cm |
| Colour gamut | 92% |
Camera, image & video1 detail
| Built-in camera | No |
|---|
Connections & wireless7 details
| Built-in USB hub | Yes |
|---|---|
| USB hub version | 3.2 Gen 1 (3.1 Gen 1) |
| HDMI | Yes |
| HDMI version | 2.0 |
| DisplayPort version | 1.2 |
| Thunderbolt 3 ports quantity | 2 |
| Panel mounting interface | 100 x 100 mm |
Power & battery9 details
| Energy efficiency class (SDR) | G |
|---|---|
| Energy efficiency class (HDR) | Not available |
| Energy consumption (SDR) per 1000 hours | 32 kWh |
| Power consumption (typical) | 32 W |
| Power consumption (standby) | 0.5 W |
| Power consumption (max) | 180 W |
| Power consumption (off) | 0.3 W |
| Power supply type | External |
| Energy efficiency scale | A to G |
Controls & features1 detail
| Operating temperature (T-T) | 10 - 40 °C |
|---|
Design & dimensions14 details
| Product colour | Grey |
|---|---|
| VESA mounting | Yes |
| Wall mountable | Yes |
| Height adjustment | Yes |
| Adjustable height (max) | 10 cm |
| Width (with stand) | 808.7 mm |
| Depth (with stand) | 309.4 mm |
| Height (with stand) | 516 mm |
| Weight (with stand) | 7.7 kg |
| Width (without stand) | 808.7 mm |
| Depth (without stand) | 167 mm |
| Height (without stand) | 362.8 mm |
| Weight (without stand) | 6.3 kg |
| Power cable length | 1.5 m |
Further product details12 details
| HD type | 4K Ultra HD |
|---|---|
| Native aspect ratio | 21:9 |
| sRGB coverage (typical) | 125% |
| NTSC coverage (typical) | 88% |
| Adobe RGB coverage | 92% |
| AMD FreeSync | Yes |
| Flicker-free technology | Yes |
| Game mode | Yes |
| Tilt adjustment | Yes |
| Tilt angle range | -14 - 22° |
| Picture-in-Picture | Yes |
| Operating relative humidity (H-H) | 10 - 80% |
Packaging & supplied accessories6 details
| Package width | 896 mm |
|---|---|
| Package depth | 371 mm |
| Package height | 589 mm |
| Package weight | 13.9 kg |
| Package type | Box |
| Cables included | AC, HDMI, Thunderbolt |
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
Build your shortlist
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Your questions, answered
Samsung LC34J791WTPXXU FAQs
How many expert reviews are available for Samsung LC34J791WTPXXU?
No scored critic reviews have been imported for this product yet. This means review coverage is missing; it does not mean the product received a poor review.
What is the COR Score for Samsung LC34J791WTPXXU?
The COR Score is tbd. We publish a combined score only after at least three distinct critics have usable ratings. Any individual reviews already available remain visible.
Which exact version does this page cover?
This page identifies Samsung LC34J791WTPXXU using manufacturer code LC34J791WTPXXU. Check that code, configuration and supplied accessories against the retailer listing. Related-version reviews are labelled separately and do not contribute to this version’s score.
What is the listed display diagonal for Samsung LC34J791WTPXXU?
The source specification records display diagonal as 86.4 cm (34"). This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
What is the listed display resolution for Samsung LC34J791WTPXXU?
The source specification records display resolution as 3440 x 1440 pixels. This is a specification, not an independent performance measurement. Check the exact model and the original critic reviews for real-world results.
Where can I compare prices for Samsung LC34J791WTPXXU?
Use the retailer-offer section on this page for available matched offers. If no offer is shown, we do not currently have a verified price. Confirm model, stock, delivery and the final total at the retailer; coverage does not include every seller.
Does a higher refresh rate make every app better?
It can make movement feel smoother, but benefits depend on the computer, connection and the activity.
Can I use a USB-C monitor with any laptop?
Not necessarily. Check the laptop port supports the required display mode and charging level.
Is a curved monitor always more immersive?
It depends on size, desk distance and use. Try it for text and multi-window work, not only video.
How should I use the specifications alongside reviews?
Use the recorded features to check compatibility and make a shortlist. Read the original reviews for measured performance, everyday use and the tested configuration.
Understand your options
Monitor buying guides
Explore one topic in depth before making your shortlist.
Start with the complete buying guide →Monitor resolution and size: finding a comfortable matchResolution counts pixels; screen size determines how densely they are packed. The same resolution can look spacious on one diagonal and coarse on another, so compare the combination rather than either number alone.Monitor refresh rates: 60Hz, 120Hz, 144Hz and beyondChoose refresh rate from actual frame rate, motion needs, connection limits and image-quality priorities.IPS, VA and OLED monitors: choosing a panel typeChoose panel behaviour around text, contrast, motion, viewing position and static desktop use.USB-C monitors as laptop docksCheck charging power, video mode, hub bandwidth, network and downstream ports as one system.