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Dell U3818DW 3840 x 1600 UltraWide IPS model

The popularity of UltraWide monitors continues to grow, and given the sort of experience they can provide that is not surprising. Although the 3440 x 1440 resolution on a 34” 21:9 screen is quite appealing to many users, there are some who prefer something even larger. In particular finding the vertical height and perhaps even the pixel count lacking a bit for their tastes. The Dell U3818DW, a recent addition to the UltraSharp lineup, features a 37.5” curved UltraWide screen with 3840 x 1600 resolution. In terms of styling it is fairly sleek and minimalistic, with the sort of modern and unfussy aesthetic that Dell has adopted for most of their recent models. An ‘InfinityEdge’ dual-stage bezel design is used, with a slim hard outer plastic component as well as a slim panel border. The panel border appears to blend in seamlessly when the monitor is switched off due to the very dark grey colour, similar to the rest of the screen when it’s off. The OSD (On Screen Display) is controlled by pressable buttons on the underside of the bottom bezel, towards the right side. There is also a vertical slit-style cool white power LED to indicate the power status of the monitor.

A large curved screen

A large curved screen


The monitor uses a 37.5” AH-IPS panel with 3840 x 1600 resolution and 2300R (moderate) curve, likely the LG LM375QW1 (LG LM375QW1). This is actually a 24:10 (2.4:1) aspect ratio, with the screen offering a similar pixel density to a 34” 3440 x 1440 model but ~1 inch of extra height and ~3 inches of extra width. A light matte antiglare screen surface is employed, giving the image a relatively smooth look and maintaining a good degree of vibrancy and clarity compared to some matte screen surfaces. The monitor has a 60Hz refresh rate, 1000:1 static contrast and 178°/178° viewing angles. The backlight is a flicker-free WLED part offering 99% sRGB and likely some extension beyond this natively – it’s a standard gamut model, though, and does not support extended colour spaces such as Adobe RGB. 10-bit colour support is included, via 8-bit + FRC dithering. The monitor comes factory calibrated in its sRGB preset, with a promised average DeltaE of <2. As usual, Dell are somewhat more reserved and perhaps more realistic when it comes to response time specifications. An 8ms grey to grey response time is specified in the ‘Normal’ mode and 5ms in the ‘Fast’ response time mode.

The screen attaches to the included stand using a quick-release bracket. It can be released using a small button underneath the attachment area to make way for an alternative 100 x 100mm VESA solution. The included stand offers good ergonomic flexibility; tilt (5° forwards, 21° backwards), swivel (30° left and 30° right) and height adjustment (115mm or 4.53 inches). The ports are down-firing, except for a couple of USB ports at the left side. They include; AC power input (internal power converter), DP 1.2, 2 x HDMI 2.0, 4 x USB 3.0 (plus 2 upstream for KVM functionality), USB Type-C, 3.5mm audio output and 2 x 9W speakers. Dell Display Manager software is included to allow efficient use of screen space, including the ability to divide the area neatly between various windows.

A view of the rear

Further details can be found on the manufacturer’s website. This model is now available globally. If there is sufficient demand we’ll consider reviewing this model.


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Dell U3818DW