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LG 24U421A-B

UK manufacturer model

Screen diagonal
24 in
Native resolution
1920 x 1080
Manufacturer maximum refresh rate
100 Hz

LG 24U421A-B in its manufacturer-documented UK configuration. The complete source table retains its published display, connection, software and physical conditions.

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THE ACTUAL PRODUCT
LG 24U421A-B official product image
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with LG 22U401A-B
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Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.

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The nearest checked monitors by key specifications, with what differs from the LG 24U421A-B. The first matches the Compare button above.

The useful part.

Key strengths

The exact manufacturer model links its source specification table and official product gallery.

Manufacturer source
The checks that matter.

Before you buy

Manufacturer specifications are claims, not independent measurements, current retailer stock or unstated regional compatibility. Unlisted units and capabilities remain unknown.

Manufacturer source
Every specification. With its source.

Full specifications

Suggest a correctionOur publishing standard

Exact configuration: UK manufacturer model · 24U421A-B

49 specifications in 9 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”.

Screen & panel

9 items
Screen diagonal
24 in

Actual manufacturer display-table diagonal. Original: 24

Source
Native resolution
1920 x 1080Source
Panel technology
VASource
DISPLAY — Size [cm]
60.4Source
DISPLAY — Aspect Ratio
16:9Source
DISPLAY — Pixel Pitch [mm]
0.2745 x 0.2745Source
DISPLAY — Viewing Angle (CR≥10)
178º(R/L), 178º(U/D)Source
DISPLAY — Curvature
1500RSource
FEATURES — Super Resolution+
YESSource

Refresh & response

3 items
Manufacturer maximum refresh rate
100 Hz

Manufacturer display-table maximum, not a motion index. Input-specific modes/overclocking remain in original source fields. Original: 100

Source
DISPLAY — Response Time
5ms (GtG at Faster)Source
FEATURES — Dynamic Action Sync
YESSource

Colour, brightness & HDR

12 items
DISPLAY — Color Gamut (Min.)
sRGB 95% (CIE1931)Source
DISPLAY — Color Gamut (Typ.)
sRGB 99% (CIE1931)Source
DISPLAY — Color Depth (Number of Colors)
16.7MSource
DISPLAY — Contrast Ratio (Min.)
2400:1Source
DISPLAY — Contrast Ratio (Typ.)
3000:1Source
DISPLAY — Brightness (Min.) [cd/m²]
220Source
DISPLAY — Brightness (Typ.) [cd/m²]
250Source
DISPLAY — Colour Bit
8bitSource
FEATURES — HDR 10
YESSource
FEATURES — HDR Effect
YESSource
FEATURES — Color Weakness
YESSource
FEATURES — Black Stabiliser
YESSource

Inputs & connections

2 items
Inputs and connections
hdmi: YES(1ea); usb-c: YES(1ea); usb-c (max. resolution at hz): 1920 x 1080; usb-c (power delivery): 15W; headphone output: 3-pole (Sound Only)Source
FEATURES — Auto Input Switch
YESSource

Stand & mounting

2 items
MECHANICAL — Display Position Adjustments
TiltSource
MECHANICAL — Wall Mountable [mm]
100 x 100Source

Size, weight & build

6 items
Manufacturer dimensions and stand basis
dimension with stand (w x h x d) [mm]: 536.32 x 411.92 x 170

Original manufacturer axes, units and up/down/stand configurations retained.

Source
DIMENSIONS/WEIGHTS — Dimension without Stand (W x H x D) [mm]
536.32 x 320.15 x 44.3Source
DIMENSIONS/WEIGHTS — Dimension in Shiping (W x H x D) [mm]
605 x 375 x 132Source
DIMENSIONS/WEIGHTS — Weight with Stand [kg]
2.92Source
DIMENSIONS/WEIGHTS — Weight without Stand [kg]
2.24Source
DIMENSIONS/WEIGHTS — Weight in Shipping [kg]
4.24Source

Power & energy

6 items
FEATURES — Smart Energy Saving
YESSource
POWER — Type
External Power(Adapter)Source
POWER — AC Input
100~240V (50/60Hz)Source
POWER — Power Consumption (Sleep Mode)
Less than 0.5WSource
POWER — Power Consumption (DC Off)
Less than 0.3WSource
POWER — DC Output
19V 2.1ASource

Eye care & features

2 items
FEATURES — Flicker Safe
YESSource
FEATURES — Reader Mode
YESSource

Box, warranty & identity

7 items
INFO — Product name
PC MonitorSource
INFO — Year
Y25Source
ACCESSORY — HDMI
YESSource
ACCESSORY — Others (Accessory)
Base ScrewSource
ACCESSORY — Adapter
YESSource
ACCESSORY — HDMI (Color/Length)
Black / 1.5mSource
ACCESSORY — Power Cord
Depend on CountrySource
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