Product comparison · 2 monitors

LG 31UM97 computer monitor vs LG 34UC87M-B computer monitor

42specifications compared
19differ
23identical
30known for one product only

Key differences

Display diagonal
- 31UM97 computer monitor:78.7 cm (31")
- 34UC87M-B computer monitor:86.4 cm (34")
Display resolution
- 31UM97 computer monitor:4096 x 2160 pixels
- 34UC87M-B computer monitor:3440 x 1440 pixels
HD type
- 31UM97 computer monitor:4K Ultra HD
- 34UC87M-B computer monitor:Quad HD
Display brightness (typical)
- 31UM97 computer monitor:320 cd/m²
- 34UC87M-B computer monitor:300 cd/m²
Supported graphics resolutions
- 31UM97 computer monitor:4096 x 2160
- 34UC87M-B computer monitor:3440 x 1440
Aspect ratio
- 31UM97 computer monitor:17:9
- 34UC87M-B computer monitor:21:9
Contrast ratio (dynamic)
- 31UM97 computer monitor:1000:1
- 34UC87M-B computer monitor:1000000:1
RMS rated power
- 31UM97 computer monitor:10 W
- 34UC87M-B computer monitor:7 W

Side by side

Differences highlightedShow differences only

Comparison of 31UM97, 34UC87M-B
72 specifications	A LG 31UM97 computer monitor Model 31UM97 View product	B LG 34UC87M-B computer monitor Model 34UC87M-B View product
Display7 differ
Display diagonalDiffers	78.7 cm (31")	86.4 cm (34")
Display resolutionDiffers	4096 x 2160 pixels	3440 x 1440 pixels
Native aspect ratioKnown for one	Unknown — not stated by the source	21:9
HD typeDiffers	4K Ultra HD	Quad HD
Display brightness (typical)Differs	320 cd/m²	300 cd/m²
Supported graphics resolutionsDiffers	4096 x 2160	3440 x 1440
Aspect ratioDiffers	17:9	21:9
Contrast ratio (typical)Known for one	Unknown — not stated by the source	1000:1
Contrast ratio (dynamic)Differs	1000:1	1000000:1
Pixel pitchKnown for one	Unknown — not stated by the source	0.23 x 0.23 mm
DDC/CIKnown for one	Unknown — not stated by the source	Yes
Colour gamut standardKnown for one	Unknown — not stated by the source	sRGB
Display number of coloursKnown for one	16.78 million colours	Unknown — not stated by the source
Multimedia1 differ
RMS rated powerDiffers	10 W	7 W
Designidentical
Feet colourKnown for one	Unknown — not stated by the source	Black, Silver
Ports & interfacesidentical
Headphone outKnown for one	Unknown — not stated by the source	Yes
Thunderbolt ports quantityKnown for one	Unknown — not stated by the source	2
I/O portsKnown for one	Unknown — not stated by the source	IR In, IR Out
USB hub versionKnown for one	3.2 Gen 1 (3.1 Gen 1)	Unknown — not stated by the source
USB Type-A downstream ports quantityKnown for one	4	Unknown — not stated by the source
Mini DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
Headphone outputsKnown for one	1	Unknown — not stated by the source
Ergonomics1 differ
Cable lock slotDiffers	No	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Height adjustmentKnown for one	Unknown — not stated by the source	Yes
Adjustable height (max)Known for one	Unknown — not stated by the source	14 cm
Tilt angle rangeKnown for one	Unknown — not stated by the source	-5 - 15°
Plug and PlayKnown for one	Unknown — not stated by the source	Yes
Poweridentical
Power consumption (typical)Known for one	105 W	Unknown — not stated by the source
Power consumption (standby)Known for one	0.78 W	Unknown — not stated by the source
Annual energy consumptionKnown for one	207 kWh	Unknown — not stated by the source
Weight & dimensions7 differ
Width (with stand)Differs	737 mm	831 mm
Height (with stand)Differs	624 mm	460 mm
Weight (with stand)Differs	9.3 kg	9.98 kg
Width (without stand)Differs	737 mm	831 mm
Depth (without stand)Differs	52 mm	79 mm
Height (without stand)Differs	408 mm	371 mm
Weight (without stand)Differs	7.3 kg	7.98 kg
Packaging data1 differ
Package weightDiffers	12.3 kg	13 kg
Package widthKnown for one	972 mm	Unknown — not stated by the source
Package depthKnown for one	152 mm	Unknown — not stated by the source
Package heightKnown for one	510 mm	Unknown — not stated by the source
Packaging contentidentical
Quick start guideKnown for one	Yes	Unknown — not stated by the source
Bundled softwareKnown for one	True Colour Pro Split Screen	Unknown — not stated by the source
Sustainability1 differ
Sustainability certificatesDiffers	ENERGY STAR	EPEAT Gold, ENERGY STAR
Other features1 differ
AC adapter includedKnown for one	Unknown — not stated by the source	Yes
CertificationKnown for one	Unknown — not stated by the source	UL, cUL, FCC-B, TUV-GS, FCC-B, CE, CCC, BSMI, EPA, ErP
Supplied AC adapter typeDiffers	LED	AC
On/off switchKnown for one	Yes	Unknown — not stated by the source

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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