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LG UltraGear 27G850A-B · Photo source

LG UltraGear 27G850A-B
Photo 1 of 7

LG UltraGear 27G850A-B · Photo source

LG · UltraGear

UltraGear 27G850A-B

Released February 2025

A 27-inch Nano IPS Black monitor with 4K at 240Hz and a separate 1080p 480Hz mode, DisplayPort 2.1 and hardware calibration support.

Size
27″
Resolution
3840 × 2160
PPI
163
Panel
IPS
Refresh
240 Hz
Brightness
450 nits
HDR
600
USB-C power
–

What reviewers say

Reviewers praise the detailed 4K image, wide colour gamut and improved contrast compared with ordinary IPS panels. The optional 480Hz mode offers faster motion at reduced resolution, although DisplayNinja still notes ghosting. Both find HDR limited by the small number of dimming zones and note the absence of USB-C.

From pcwplus.hu and displayninja.com

Specifications

Report a wrong or missing spec

Display

Screen size
27″
Resolution
3840 × 2160 (4K)
Sharpness
163 pixels per inch
Panel
IPS (Nano IPS Black; dual mode switches to 1920 x 1080 at 480Hz)
Refresh rate
240 Hz
Response time (grey to grey)
1 ms
Brightness (typical)
450 nits
HDR certification
DisplayHDR 600
HDR formats
HDR10
Contrast ratio
2,000:1
Colour range
99% DCI-P3 (CIE 1976)
DCI-P3 coverage
99%
Shape
Flat
Adaptive sync
G-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSync
Colour depth
1.07 billion colours; 8-bit plus FRC (PCW and DisplayNinja)
HDR detail
Eight dimming zones (PCW and DisplayNinja); LG Korea lists 750 nits typical peak brightness and 600 nits minimum peak brightness
Response time detail
1ms grey to grey in Faster mode
Viewing angles
178° horizontal and vertical, CR ≥ 10
Pixel pitch
0.1554 x 0.1554 mm
Eye care
Flicker Safe, Reader Mode and Live Color Low Blue Light with TÜV Rheinland Eyesafe certification
Calibration
Factory colour calibration and hardware calibration support

Connections

Video inputs
2 × HDMI 2.1, DisplayPort 2.1
USB-C charging
None
USB ports
2 × USB-A
Speakers
No
HDMI detail
2 x HDMI 2.1; 3840 x 2160 at 240Hz or 1920 x 1080 at 480Hz
DisplayPort detail
1 x DisplayPort 2.1; 3840 x 2160 at 240Hz or 1920 x 1080 at 480Hz
USB hub detail
USB 3.2 Gen 1; one USB-B upstream and two USB-A downstream ports
Picture by picture
No picture in picture or picture by picture
Audio out
Four-pole headphone and microphone jack with DTS Headphone:X

Design

Stand adjusts
Height, tilt, swivel, pivot
VESA mount
Yes
Weight with stand
9.4 kg
Height adjustment
110 mm
Tilt
-8° to +15°
Swivel
-30° to +30°
Pivot
Counter-clockwise portrait rotation
VESA pattern
100 x 100 mm
Size with stand
614.7 x 249.1 x 471.8–581.8 mm (W x D x H)
Size without stand
614.7 x 68.1 x 365.4 mm (W x D x H)
Weight without stand
5.2 kg
Controls
Rear joystick; user-defined shortcut key
Colours
Black with Unity Hexagon Lighting

Power and support

Power use
44 W on mode (LG Korea); ≤ 0.5 W sleep; ≤ 0.3 W off
Power supply
External adapter; 100–240V, 50/60Hz
Software
LG Switch, LG Calibration Studio and Dual Controller
In the box
Adapter, power cable, HDMI cable, DisplayPort cable and USB A to B cable

Pros and cons

Pros

  • 4K 240Hz or 1080p 480Hz operation
  • Nano IPS Black panel with a stated 2000:1 contrast ratio
  • Height, tilt, swivel and portrait adjustment

Cons

  • 480Hz mode reduces resolution to 1920 x 1080
  • No USB-C video or laptop charging
  • External power adapter

Closest rivals

Model
SizeResolutionPPIPanelRefreshBrightnessHDRUSB-C powerReleased
DellAlienware 27 4K Dual-Resolution (AW2725QF)
27″3840 × 2160163IPS180 Hz400 nits600–Sept 2024
GigabyteM27UP
27″3840 × 2160163IPS160 Hz350 nits40018 WJun 2025
SonyINZONE M9 II
27″3840 × 2160163IPS160 Hz400 nits600–Sept 2024

Sources

  1. lg.com/uk/monitors/gaming/27g850a-b
  2. lg.com/hk_en/monitors/gaming/27g850a-b
  3. lge.co.kr/monitors/27g850a
  4. prtimes.jp/main/html/rd/p/000000356.000023289.html
  5. pcwplus.hu/pcwlite/lg-ultragear-27g850a-teszt-a-ketarcu-gamermonitor-378284.html
  6. displayninja.com/lg-27g850a-review

Photo: lge.co.kr

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