Dell P2415Q vs LG 38UC99-W

Complete input lag time (signal delay and pixel response time) is 11.85ms or ¾ of a frame.

According to Spyder4Elite tests performed by PC Monitor, P2415Q has good color temperature uniformity. A DeltaE deviation of over 3 can be easily noticed by most people and the highest deviation recorded is 2.5. It's worth noting that the monitor has an uniformity compensation setting that in the same test proved to make things worse with a maximum deviation of 2.9.

According to tests performed by PC Monitors, P2415Q set to factory defaults (75% brightness, Standard preset) produces luminance in the range of 0.21 - 237 cd/m² with a contrast ratio of 1129. It provides good brightness and dark blacks. It is also capable of going up to 0.30 - 331 cd/m² with a contrast ratio of 1182 at 100% brightness.

Impressive amount of on-screen real estate, excellent picture quality, exceptional connectivity, and great color accuracy puts the LG 38UC99-W above nearly all competitors in the market.

You can charge your laptop and have display output through a single cable thanks to the monitor's USB-C port.

You can access all the general features of this monitor using your mouse and a keyboard thanks to the LG’s On-Screen Control software.

Additionally, the On-Screen Control offers many screen split presets.

Having enough display real-estate to fit three vertically aligned Google Docs windows comfortably, the LG 38UC99-W is an excellent tool to boost up the productivity in everyday office duties, CAD/CAM applications, and many other fields.

Acing the near-cinematic aspect ratio of 21:9, the LG 38UC99-W is an excellent companion to watch movies because you won't see the black bars at the top and bottom of the screen when watching most movies.

The LG 38UC99-W features a built-in 20 Watt stereo speaker system which sounds fairly well compared to the 4-10 W speakers the competitors at this price point offer.

This monitor beats most of its premium competitors in terms of connectivity because it features a USB-C downstream port which has multiple parallel functions. First, you can use it to access the monitor's onboard USB hub. Second, it can be used for charging a USB type C compliant laptop. Finally, you can use it to receive video and audio signal from a computer.

Additionally, the LG 38UC99-W has two HDMI ports, a DisplayPort, and an inbuilt Bluetooth module.

You can connect this monitor to two computers so that each machine use half of the on-screen area. This might come in handy for those who frequently use a stationary desktop computer and a laptop.

Only the best monitors can match the LG 38UC99-W's contrast ratio, peak brightness, gamma, and color accuracy, as the monitor features one of the finest IPS panels in the industry.

The LG 38UC99-W displays beautiful pictures, with deep and rich blacks, vibrant and accurate colors, and good-looking intermediate tones. Despite the fact that the monitor's native contrast ratio is only 1000:1, the dark scenes look deep and intense as the backlight of the 38UC99-W can drop below the brightness level of 0.15 nits, which only the best monitors can do. Colors pop and look vivid, as the 38UC99-W can sustain its brightness above the 300 nits mark. The mid-tones look lifelike thanks to the monitor's near perfect gamma value, which is only 1.3% off from the ideal value.

Moreover, the monitor's color inaccuracies can't be seen by the human eye because it only has an average color error dE of 2.12.