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The presence of USB-C permits for the transfer of records, video, and sixty five W of strength over a single cable in preference to 3; this selection is specifically accessible for proprietors of USB-C laptops, and it has grow to be greater pertinent in 2019 considering that nearly all new laptops over $seven hundred or so can take gain of it.

A take a look at the 27-inch HP Z27 4k reveal's buttons, observed on the bottom of the screen.

The Z27’s easy-to-use menu buttons are living on the underside of the display’s bottom bezel. Photo: Sarah Kobos

Input ports at the HP Z27 4K screen

The HP Z27 has a number of useful ports to pick out from—together with HDMI, DisplayPort, Mini DisplayPort, USB-C, and USB 3.zero. Photo: Sarah Kobos

A observe the 27-inch HP Z27 4k screen's buttons, located on the bottom of the monitor.

The Z27’s smooth-to-use menu buttons reside on the bottom of the best monitor screen’s bottom bezel. Photo: Sarah Kobos

Input ports at the HP Z27 4K monitor

The HP Z27 has some of beneficial ports to pick out from—together with HDMI, DisplayPort, Mini DisplayPort, USB-C, and USB 3.0. Photo: Sarah Kobos

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In maximum of our CalMAN exams, the HP Z27’s DeltaE 2000 values were outstanding; we found its colour points at 2.31, ColorChecker at 2.68, and saturation sweep at 2.42. Its grayscales have been extra technically correct than the ones of most of the opposition, at 2.97. Although the Lenovo ThinkVision P27u, our runner-up, had better CalMAN rankings in those checks, the HP Z27 posted one of the highest (and excellent) evaluation ratios we discovered on any of our monitors, at 1,002:1. Contrast ratio is the measurement of a totally lit white display screen as opposed to an unlit black screen at a set brightness stage. The HP Z27’s score is an super quantity for a reveal, especially an IPS panel, and it manner the vibrant components of the display screen will appearance vibrant and really pop out subsequent to blacks.

A graph illustrating the HP Z27 27-inch reveal's grayscale monitoring.

The HP Z27’s grayscale tracking turned into very accurate: 2.97 points.

A graph illustrating the HP Z27 4k reveal's shade accuracy performance.

The HP Z27’s ColorChecker score changed into brilliant—2.68.

A graph illustrating the HP Z27's saturation performance.

The HP Z27’s saturation sweep rating become staggering, too, at 2.42.

The HP Z27 is available in two pieces that are straightforward to collect; you could connect them without additional tools. Its 4 ergonomic modifications—tilt, swivel, pivot, and top adjustment—work securely and steadily, and make it clean to customize the screen’s function for your ergonomic needs. It additionally has greater adjustability than most other monitors we tested. It tilts five ranges forward and 23 ranges backward, and it is able to swivel aspect to facet and pivot ninety degrees into portrait mode. If you favor to use a VESA screen arm in vicinity of the Z27’s stand, it permits for that, too.

HP covers the Z27 with a 3-yr fashionable confined assurance and dead-pixel coverage—the agency will update your display if it has even one shiny pixel or subpixel, or if it has greater than 4 darkish subpixels.

Runner-up 4K screen: Lenovo ThinkVision P27u

The Lenovo ThinkVision P27u shown set up on a table.

Photo: Michael Murtaugh

Runner-up

Lenovo ThinkVision P27u

Lenovo ThinkVision P27u

The Lenovo ThinkVision P27u is a outstanding runner-up with a shade-correct display screen, a flexible stand, and a convenient USB-C connection, although it's a bit uglier than the HP Z27 and its assessment ratio isn't as desirable.

$580* from Adorama

*At the time of publishing, the fee changed into $474.

If the HP Z27 is sold out, too highly-priced, or otherwise hard to locate, the Lenovo ThinkVision P27u is a great runner-up option. Though its evaluation ratio isn’t as excessive because the HP’s, its color accuracy is a tad higher; of the two, only the assessment ratio distinction is important to the bare eye. Its adjustable stand lifts, tilts, and pivots, but it doesn’t swivel like that of the HP Z27, and this display is a little less svelte overall. It consists of a useful DisplayPort connection plus HDMI and USB three.0 ports, as well as a USB-C port that lets you transmit data and video and rate a USB-C laptop at 50 W, throughout a single cable. Like the HP Z27, the Lenovo ThinkVision P27u has skinny bezels around the facets and the pinnacle of its screen, which makes its display fine to examine. It comes with a 3-12 months warranty, too. It’s a remarkable display, but most human beings have to remember the HP first if that version is to be had.

The ports on the facet of the Lenovo P27u.

The Lenovo P27u has a bunch of USB 3.0 ports on its facet, further to the DisplayPort, HDMI, and USB-C ports on its back (now not pictured). Photo: Michael Murtaugh

In maximum of our CalMAN assessments, the Lenovo’s DeltaE 2000 values turned out beautifully; we observed that it done even better than the HP Z27 in lots of our exams, although I couldn’t tell the difference between the monitors while searching at them side via aspect. Neither display hit the three.0 mark or above, that is whilst a reveal’s display screen surprisingly seems distinctive to the naked eye.

The P27u’s color points had been around 1.11, its ColorChecker changed into at 1.05, and its saturation sweep score became 1.12. Its grayscales were extra technically correct than those of most of the opposition, at 1.99. Comparatively, the HP Z27’s marks were 2.31, 2.68, 2.42, and 2.97, respectively.

The one slightly considerable difference among our pinnacle two alternatives become within the comparison ratio: The Lenovo’s became 853:1, at the same time as the HP had a 1,002:1 contrast ratio. The Lenovo’s end result wasn’t terrible, however the lower comparison ratio, alongside this monitor’s particularly reduced adjustability, became enough of a downside for us to call the HP because the better desire for most people.