LG 27U421A – Price and Full Specifications

LG 27U421A – Price and Full Specifications
$113.00
SKU: 27U421A
Brand: lg
Category: Monitor
Available Official
  • Display 27 in, VA, 1920 x 1080 (Full HD)
  • Refresh rate 48 Hz - 100 Hz
  • Dimensions 610 x 360 x 45.7 mm (without stand)
  • Weight 3 kg (without stand)
  • Brightness: 250 cd/m²

Our Rating

The overall rating is based on review by our experts

8
  • Design 8 / 10
  • Display 8 / 10
  • HDR 8 / 10
  • Refresh Rate 8 / 10
  • Connectivity 8 / 10
  • Ergonomics 8 / 10

PROS

  1. 27-inch Full HD screen with HDR10 support
  2. High 3000:1 contrast (VA panel)
  3. 100 Hz refresh rate with Adaptive-Sync
  4. 99% sRGB coverage for accurate colors
  5. Lightweight (3 kg) & VESA mount support

CONS

  1. Only 250 nits brightness (not great in bright rooms)
  2. No height, tilt, or swivel adjustment
  3. No built-in speakers
  4. Limited to HDMI 1.4 (older standard)
  5. Pixel density is low for 27-inch (81 ppi)

Full Specifications

Basic Information

Brand LG
Model 27U421A
Model Year 2025

Dimensions & Weight

Dimensions With Stand 610 x 452 x 170 mm
Dimensions Without Stand 610 x 360 x 45.7 mm
Weight 3 kg

Display

Size 27 in
Diagonal 685.655 mm
Width 596.736 mm
Height 335.664 mm
Aspect Ratio 16:9
Panel Type VA
Resolution 1920 x 1080 pixels
Panel manufacturer AU Optronics
Panel bit depth 8 bits
FRC Yes
Coating Anti-glare/Matte (3H)

Picture Quality

Backlight W-LED
Static contrast 3000 : 1
HDR Support HDR10
Brightness 250 cd/m²
Pixel Density 81 ppi
Pixel Pitch 0.311 mm
Colors 16777216 colors, 24 bits
sRGB 99 %

Response Time & Input Lag

MIN Response Time 5 ms
MAX Response Time -

Refresh Rate & VRR

Native Refresh Rate 48 Hz - 100 Hz
Maximum Refresh Rate 100 Hz
DSC 1 x HDMI 1.4
VRR Support Adaptive-Sync
VRR Range 48 Hz - 100 Hz

Ergonomics & Design

VESA Mount Yes,100 x 100 mm
Removable stand Yes
Height adjustment No
Landscape/portrait pivot No
Left/right swivel No
Forward/backward tilt No
Design Colors Black

Audio

Speakers No

Camera

Camera No

Ports ,Connectivity & OS

USB 1 x USB 3.0 (Type-C; 15W)
HDMI 1 x HDMI 1.4
Display Port 1 x DisplayPort 1.4
Audio Port 1 x 3.5 mm Audio Out
Other Connectivity HDCP 1.4

Functional features

Gamming Features 3-Side Virtually Borderless Design
Adaptive-Sync technology
Black Stabilizer
Color Weakness
Dynamic Action Sync
Flicker-free technology
HDR Effect
LG Switch
Low Blue Light
Reader Mode
Smart Energy Saving
Super Resolution+

Additional features

Extra Features Anti-theft stand lock slot - Kensington

Certificates

Certificates CE

Power & Energy

Voltage 100 V - 120 V
Average Power Use 0.3 W
Sleep Mode 0.3 W
Off Mode 0.3 W

Environmental Specs

Operating Temp 0 °C - 40 °C
Storage Temp -20 °C - 60 °C
Operating Humidity 10 % - 80 %
Storage Humidity 5 % - 85 %

Disclaimer Note

You can write your own disclaimer from APS Settings -> General -> Disclaimer Note.

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