LG

LG UltraGear OLED GX9s 45GX90SA-B

A solid mid-range 1440p monitor for anyone building a living-room setup, leading with 240 Hz.

63/100
Solid pick
Overall score · how we rate
240 HzWOLED0.03 msHDR 4001440p21:9
£1,130best price at Amazon
In stock at 1 retailer

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Why we rate it

  • G-Sync
  • FreeSync
  • VRR
  • Above-average peak brightness
  • Below-average pixel density
Score profile

Where the LG UltraGear OLED GX9s 45GX90SA-B wins and loses

Scored against the 1440p monitors class
DisplayPortsGaming556585
Display
55
Ports
65
Gaming features
85
Full specification

Specifications

Grouped · supported features marked in blue

Display

Size45 "
Resolution1440
Aspect ratio21
Panel typeWOLED
Pixel density92 ppi
Refresh rate240 Hz
Response time0.03 ms
Peak brightness1300 nits
DCI-P3 coverage98.5

HDR and contrast

HDR certificationHDR 400
Contrast ratio1500000

Ports

HDMI ports2
HDMI version2.1
DisplayPort1
DisplayPort version1.4
USB-C1
USB-C Power Delivery65 W

Gaming features

G-SyncYes
FreeSyncYes
VRRYes

Audio

Built-in speakersYes

More specs

CurvatureCurved
Weight13.5 kg
USB c ports2
Adaptive syncYes
Color depth bit10
Dci p3 coverage98.5 %

Watch it in action

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Head to head

LG UltraGear OLED GX9s 45GX90SA-B vs Samsung Samsung Odyssey G6 LS27FG606EUXXU

Highlighted cell = better in that row
DisplayPortsGaming
LG UltraGear OLED GX9s 45GX90SA-BSamsung Odyssey G6 LS27FG606EUXXU
 LGLG UltraGear OLED GX9s 45GX90SA-BThis pageSamsungSamsung Odyssey G6 LS27FG606EUXXU
Overall score63 /10065 /100Better
Refresh240 Hz350 HzBetter
Size45 "27 "
Panel typeWOLEDIPS
Response0.03 msBetter1 ms
HDR certifiedHDR 400DisplayHDR 400
Peak1300 nitsBetter350 nits
Who it's for

Is the LG UltraGear OLED GX9s 45GX90SA-B right for you?

Buy it if
Buyers on a budget

Anyone who needs a dependable 1440p monitor for the essentials without overspending.

Skip it if
Skip it if

You need the brightest, sharpest panel, in which case a higher-tier 1440p monitor is the better call.

Home cinema viewer
Wants the best picture for films and gaming nights.
good
Everyday watcher
Mixed TV, streaming and the odd console session.
good
Budget upgrader
Replacing an older set without overspending.
excellent
Common questions

Before you buy

Is the LG UltraGear OLED GX9s 45GX90SA-B worth it?

It depends on what you need. It scores 63/100 against other 1440p monitors, a solid mid-range result where the class average is around 51.

What stands out on the LG UltraGear OLED GX9s 45GX90SA-B?

Its g-sync stands out, a genuinely useful feature if your setup calls for it.

How does it compare to the Samsung Odyssey G6 LS27FG606EUXXU?

The Samsung Odyssey G6 LS27FG606EUXXU scores 65/100 versus this one at 63/100, so it is the step up on the spec sheet.