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- UltraFine 40U990A
LGColour-accurate monitor
LG UltraFine 40U990A
LG UltraFine 40U990A is a colour-accurate monitor released in 2025. Key specs: screen size 39.7″, resolution 5120 × 2160, panel type IPS, pixel density 140 ppi.
7.6Score
Screen9.1
Connectivity8.6
Design & ergonomics2.8
price range$1,350–1,700Reference price converted from JPY
- Year
- 2025
- Brand
LG- Popularity
- #181 of 297
39.7″Screen size
5120 × 2160Resolution
IPSPanel type
140 ppiPixel density
99%DCI-P3 coverage
96 WUSB-C charging (Power Delivery)
14.1 kgWeight
Spec guide
How it ranks among colour-accurate monitors of 2025
Screen size · 39.7″Top 2%
Pixel density · 140 ppiBottom 41%
DCI-P3 coverage · 99%Top 10%
USB-C charging (Power Delivery) · 96 WTop 22%
Weight · 14.1 kgBottom 2%
Compared with colour-accurate monitors released in 2025. Bars show the share of models it beats.
compared with other colour-accurate monitors
Why is UltraFine 40U990A a good choice?
Brightness (typical): 450 nitsbetter than 86% of colour-accurate monitors
DCI-P3 coverage: 99%better than 85% of colour-accurate monitors
Screen size: 39.7″better than 94% of colour-accurate monitors
USB-C charging (Power Delivery): 96 Wbetter than 78% of colour-accurate monitors
Refresh rate: 120 Hzbetter than 82% of colour-accurate monitors
Specifications
Full specifications
Display
- Screen size
- 39.7″
- Resolution
- 5120 × 2160
- Pixel density
- 140 ppi
- Aspect ratio
- 21:9
- Refresh rate
- 120 Hz
- Brightness (typical)
- 450 nits
- Contrast ratio (static)
- 2,000:1
- Response time
- 5 ms
- Anti-glare / matte screen
- Yes
- Curved screen
- Yes
Connectivity
- USB-C video input (one cable)
- Yes
- USB-C charging (Power Delivery)
- 96 W
- Thunderbolt
- Yes
- KVM switch
- Yes
- HDMI inputs
- 2
- DisplayPort inputs
- 1
- USB hub
- Yes
- Built-in speakers
- Yes
Design & ergonomics
- Height adjustment
- 130 mm
- Swivel
- Yes
- Weight
- 14.1 kg
- Width
- 948 mm
- Height
- 614 mm
- Depth
- 260 mm
Specs are collected from manufacturers and open databases and normalised to one format; check details with the seller before you buy.
Compare
Compare UltraFine 40U990A with
vs
LG UltraFine 40U990AvsAsus ProArt PA32UCE
7.67.9
vs
LG UltraFine 40U990AvsDell UltraSharp U5226KW
7.68.1
vs
LG UltraFine 40U990AvsAsus ProArt PA32QCV
7.68.0
vs
LG UltraFine 40U990AvsAsus ProArt PA32UCDM
7.68.1
vs
LG UltraFine 40U990AvsViewSonic VP2786A-4K
7.68.3
vs
LG UltraFine 40U990AvsAsus ProArt PA27DCE
7.67.7
In collections
Monitors & pen tablets: Resolution class 5K + thunderbolt12Monitors & pen tablets: Screen size from 31.5″ + refresh rate from 120 hz18Monitors & pen tablets: Refresh rate from 120 Hz + thunderbolt20Monitors & pen tablets: Refresh rate from 120 Hz + KVM switch24Monitors & pen tablets: Screen size from 31.5″ + thunderbolt25Monitors & pen tablets: USB-C charging (Power Delivery) from 90 W + thunderbolt29Monitors & pen tablets: Refresh rate from 120 Hz + USB-C charging (power delivery) from 65 w29Monitors & pen tablets: Thunderbolt + KVM switch30
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