HP E27M G4 Monitor Review

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The HP E27M G4 computer monitor is a great office display for those who prioritize hassle-free video conferencing and all-around adjustability, but it has a low contrast ratio.

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Product Snapshot


The 27-inch HP E27M G4 is a mid-tier office display announced in 2021. It has a 1440p screen resolution and a widescreen form factor with a 16:9 screen ratio. Designed with virtual conferencing in mind, the E27M G4 has a built-in 5MP webcam, maintaining good visibility with a 300-nit brightness rating. The best computer monitors on the market are, however, much brighter.

The E27M G4 also offers a 5ms response time and has one DisplayPort, one HDMI port, four USB ports, and a single 3.5mm earphone jack. Adjustability is also top tier, as users can tilt and swivel the display or adjust its height.

Best For

  • HP


our Verdict

The E27M G4 is a middle-of-the-road office display that should live up to most people’s video conferencing needs. While its 300-nit brightness rating is pretty average compared to other high-ranking monitors, the display stays bright enough to maintain visibility in well-lit settings, and with a 99% coverage of the sRGB color scale, it secures a top 10% placement on our certified, tested list compared to other alternatives.

Unfortunately, the E27M G4 misses out on HDR, and its 1000:1 contrast ratio doesn’t quite keep blacks dark in black scenes. The E27M G4’s all-around adjustability makes it easy to customize, and with 4 USB ports plus one HDMI port, its connectivity is decent.

ReasonS to Buy

  • Good Image quality
    • The G4 is a productivity-focused office display with standard image quality courtesy of its 300-nit brightness rating, which is average when compared to other displays in our certified, tested list.

    • Color accuracy is top-notch, as its 99% coverage of the sRGB color scale places it in the top 10% of our list compared to other alternatives in this category.

  • Low input lag
    • There aren’t any perceivable delays on the E27M G4, as the display has a low 9ms input lag, which is slightly above average compared to other alternatives in our list of certified, tested computer monitors.

  • Average 75Hz refresh rate
    • While it is pretty standard for most office monitors, the 75Hz refresh rate on the G4 is still good enough to keep any screen tearing at bay. However, an alternative with a much higher refresh rate is the Samsung Odyssey G5 LC27G55T.

Reason to Avoid

  • Low contrast ratio
    • Blacks don’t appear as deep and dark on the E27M G4 monitor because of its reasonably low 1000:1 static contrast ratio.

HP E27M G4 Monitor Specs

Available InputsAvailable Inputs3.5mm, DisplayPort, HDMI, USB
Bluelight FilterBluelight FilterYes
Built-In SpeakersBuilt-In SpeakersYes
Built-In WebcamBuilt-In WebcamYes
Curved ScreenCurved ScreenNo
Display Type
Flicker FreeFlicker FreeYes
HDMI Inputs1
HDR Formatn/a
High Dynamic Range (HDR)No
Max Resolution2560 x 1440
Panel TypePanel TypeIPS
Refresh Rate75 Hz
Response TimeResponse Time5 ms
Rotating ScreenRotating ScreenYes
Screen size27"
Sync TechnologySync TechnologyAMD FreeSync

All Specs

Test Results

Brightness (nits)277
Contrast Ratio (as ratio x:1)1,028.5
Color Gamut/Accuracy % (DCI P3 xy)81.5
Color Gamut/Accuracy % (DCI P3 uv)0
Color Gamut % (sRGB Coverage xy)106.9
Color Gamut % (Adobe RGB Coverage xy)75.55
Color Gamut % (Rec. 2020 Coverage xy)0
Color Gamut % (Rec. 709 Coverage xy)0
Input Lag (ms)0
Response Time (ms)0
Horizontal Viewing Angle (Washout Left)0
Horizontal Viewing Angle (Washout Right)0
Vertical Viewing Angle (Washout Above)0
Vertical Viewing Angle (Washout Below)0
Reflections % (Total Reflections)0

All Tests

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Expert Scores

  • PC Mag

    Category Trust Rating

    The HP E27m G4 QHD USB-C Conferencing Monitor enhances your video calls with a high-res… Read More


    Tony Hoffman
  • Trusted Reviews

    Category Trust Rating

    The HP E27d G4 is packed with features, including a versatile selection of ports and… Read More


    Mike Jennings
  • Laptop Mag

    Category Trust Rating

    HP’s E27d G4 is an excellent option for business users thanks to its gorgeous matte… Read More


    Phillip Tracy

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