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LG UltraGear 27G850A-B vs LG UltraGear OLED 27GX700A

Every spec side by side, from each maker's published figures.

Better figure, where one is clearly better

LGUltraGear 27G850A-BLGUltraGear OLED 27GX700A
Overview
ReleasedFebruary 2025August 2025
Display
Screen size27″26.5″
Resolution3840 × 2160 (4K)2560 × 1440 (QHD)
Sharpness163 pixels per inch111 pixels per inch
PanelIPS (Nano IPS Black; dual mode switches to 1920 x 1080 at 480Hz)OLED (LG Display fourth-generation Primary RGB Tandem WOLED)
Refresh rate240 Hz280 Hz
Response time (grey to grey)1 ms0.03 ms
Brightness (typical)450 nits335 nits
HDR peak brightness–1,500 nits
HDR certificationDisplayHDR 600DisplayHDR True Black 500
HDR formatsHDR10HDR10
Contrast ratio2,000:11,500,000:1
Colour range99% DCI-P3 (CIE 1976)99.5% DCI-P3 (typical)
DCI-P3 coverage99%99.5%
ShapeFlatFlat
Adaptive syncG-Sync Compatible, FreeSync Premium Pro, VESA AdaptiveSyncFreeSync Premium Pro, G-Sync Compatible
Colour depth1.07 billion colours; 8-bit plus FRC (PCW and DisplayNinja)1.07 billion colours
Colour modes–Reader Mode, Colour Weakness mode; HDR Effect
HDR detailEight dimming zones (PCW and DisplayNinja); LG Korea lists 750 nits typical peak brightness and 600 nits minimum peak brightnessHDR10; VESA DisplayHDR True Black 500; 1,500 nits peak at 1.5% APL (TFTCentral, from LG)
Response time detail1ms grey to grey in Faster mode–
Viewing angles178° horizontal and vertical, CR ≥ 10178° / 178°
Pixel pitch0.1554 x 0.1554 mm0.2292 × 0.2292 mm
Eye careFlicker Safe, Reader Mode and Live Color Low Blue Light with TÜV Rheinland Eyesafe certification–
CalibrationFactory colour calibration and hardware calibration supportFactory calibrated; hardware calibration ready (LG Calibration Studio)
Connections
Video inputs2 × HDMI 2.1, DisplayPort 2.12 × HDMI 2.1, DisplayPort 1.4
USB-C chargingNoneNone
USB ports2 × USB-AUSB-A
SpeakersNoNo
HDMI detail2 x HDMI 2.1; 3840 x 2160 at 240Hz or 1920 x 1080 at 480Hz2 × HDMI 2.1 (cable included)
DisplayPort detail1 x DisplayPort 2.1; 3840 x 2160 at 240Hz or 1920 x 1080 at 480HzDisplayPort 1.4
USB hub detailUSB 3.2 Gen 1; one USB-B upstream and two USB-A downstream ports1 × USB 3.0 upstream (USB-B), 1 × USB 3.0 downstream
Picture by pictureNo picture in picture or picture by picture–
Audio outFour-pole headphone and microphone jack with DTS Headphone:X4-pole headphone out (sound and mic), DTS Headphone:X
Design
Stand adjustsHeight, tilt, swivel, pivotHeight, tilt, swivel, pivot
VESA mountYesYes
Weight with stand9.4 kg9 kg
Height adjustment110 mm–
Tilt-8° to +15°–
Swivel-30° to +30°–
PivotCounter-clockwise portrait rotation–
VESA pattern100 x 100 mm100 × 100 mm
Size with stand614.7 x 249.1 x 471.8–581.8 mm (W x D x H)605.2 × 249.1 × 469.3–579.3 mm (W × D × H)
Size without stand614.7 x 68.1 x 365.4 mm (W x D x H)605.2 × 45.3 × 351.0 mm (W × D × H)
Weight without stand5.2 kg4.8 kg
ControlsRear joystick; user-defined shortcut keyUser-defined key; auto input switch; game features include Black Stabiliser, Dynamic Action Sync, Crosshair and FPS Counter; Hexagon Lighting RGB LEDs
ColoursBlack with Unity Hexagon Lighting–
Power and support
Power use44 W on mode (LG Korea); ≤ 0.5 W sleep; ≤ 0.3 W offLess than 0.5 W sleep, less than 0.3 W off
Power supplyExternal adapter; 100–240V, 50/60HzExternal adapter, 100–240 V
SoftwareLG Switch, LG Calibration Studio and Dual Controller–
In the boxAdapter, power cable, HDMI cable, DisplayPort cable and USB A to B cableHDMI 2.1 cable, DisplayPort cable, USB A-to-B cable

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