Product comparison · 2 monitors

Lenovo 28 4K2K Tegra K1 vs Lenovo Flat Panel Essential LI1931e computer monitor

25specifications compared
18differ
7identical
46known for one product only

Key differences

Display diagonal
- 28 4K2K Tegra K1:71.1 cm (28")
- Flat Panel Essential LI1931e computer monitor:47 cm (18.5")
Display resolution
- 28 4K2K Tegra K1:3840 x 2160 pixels
- Flat Panel Essential LI1931e computer monitor:1366 x 768 pixels
Touchscreen
- 28 4K2K Tegra K1:Yes
- Flat Panel Essential LI1931e computer monitor:No
Supported graphics resolutions
- 28 4K2K Tegra K1:3840 x 2160
- Flat Panel Essential LI1931e computer monitor:1366 x 768
Contrast ratio (typical)
- 28 4K2K Tegra K1:1000:1
- Flat Panel Essential LI1931e computer monitor:600:1
Viewing angle, vertical
- 28 4K2K Tegra K1:160°
- Flat Panel Essential LI1931e computer monitor:50°
Display number of colours
- 28 4K2K Tegra K1:1.073 billion colours
- Flat Panel Essential LI1931e computer monitor:16.78 million colours
Built-in speaker(s)
- 28 4K2K Tegra K1:Yes
- Flat Panel Essential LI1931e computer monitor:No

Side by side

Differences highlightedShow differences only

Comparison of 28 4K2K Tegra K1, LI1931e
71 specifications	A Lenovo 28 4K2K Tegra K1 View product	B Lenovo Flat Panel Essential LI1931e computer monitor Model LI1931e View product
Display7 differ
Display diagonalDiffers	71.1 cm (28")	47 cm (18.5")
Display resolutionDiffers	3840 x 2160 pixels	1366 x 768 pixels
Display technologyKnown for one	LED	Unknown — not stated by the source
TouchscreenDiffers	Yes	No
HD typeKnown for one	4K Ultra HD	Unknown — not stated by the source
Touchscreen typeKnown for one	Tabletop	Unknown — not stated by the source
Touchscreen technologyKnown for one	Capacitive	Unknown — not stated by the source
Touch technologyKnown for one	Multi-touch	Unknown — not stated by the source
Display brightnessKnown for one	270 cd/m²	Unknown — not stated by the source
Response time	5 ms	5 ms
Screen shapeKnown for one	Flat	Unknown — not stated by the source
Supported graphics resolutionsDiffers	3840 x 2160	1366 x 768
Aspect ratio	16:9	16:9
Contrast ratio (typical)Differs	1000:1	600:1
Viewing angle, horizontalKnown for one	170°	Unknown — not stated by the source
Viewing angle, verticalDiffers	160°	50°
Display number of coloursDiffers	1.073 billion colours	16.78 million colours
Pixel pitchKnown for one	0.16 x 0.16 mm	Unknown — not stated by the source
Viewable size, horizontalKnown for one	62.1 cm	Unknown — not stated by the source
Viewable size, verticalKnown for one	34.1 cm	Unknown — not stated by the source
Native aspect ratioKnown for one	Unknown — not stated by the source	16:9
Display brightness (typical)Known for one	Unknown — not stated by the source	250 cd/m²
3DKnown for one	Unknown — not stated by the source	No
Performanceidentical
NVIDIA G-SYNCKnown for one	No	Unknown — not stated by the source
AMD FreeSyncKnown for one	No	Unknown — not stated by the source
Multimedia2 differ
Built-in speaker(s)Differs	Yes	No
Number of speakersKnown for one	2	Unknown — not stated by the source
RMS rated powerKnown for one	10 W	Unknown — not stated by the source
Built-in cameraDiffers	Yes	No
Megapixel (approx.)Known for one	2.1 MP	Unknown — not stated by the source
Built-in microphoneKnown for one	Yes	Unknown — not stated by the source
Design1 differ
Product colourDiffers	Black, Silver	Black
Market positioningKnown for one	Unknown — not stated by the source	Business
Ports & interfaces2 differ
Built-in USB hubKnown for one	Yes	Unknown — not stated by the source
USB hub versionKnown for one	3.2 Gen 1 (3.1 Gen 1)	Unknown — not stated by the source
Number of upstream portsKnown for one	1	Unknown — not stated by the source
USB Type-A downstream ports quantityDiffers	4	0
HDMIKnown for one	Yes	Unknown — not stated by the source
HDMI ports quantityDiffers	3	0
DisplayPorts quantityKnown for one	1	Unknown — not stated by the source
VGA (D-Sub) ports quantityKnown for one	Unknown — not stated by the source	1
DVI portKnown for one	Unknown — not stated by the source	No
HDCPKnown for one	Unknown — not stated by the source	No
Ergonomics1 differ
Height adjustmentKnown for one	Yes	Unknown — not stated by the source
Swivel angle rangeKnown for one	-45 - 45°	Unknown — not stated by the source
Tilt adjustment	Yes	Yes
Tilt angle rangeDiffers	-5 - 25°	-5 - 20°
LED indicatorsKnown for one	Yes	Unknown — not stated by the source
VESA mountingKnown for one	Unknown — not stated by the source	Yes
Panel mounting interfaceKnown for one	Unknown — not stated by the source	100 x 100 mm
Cable lock slotKnown for one	Unknown — not stated by the source	No
On Screen Display (OSD)Known for one	Unknown — not stated by the source	Yes
Number of OSD languagesKnown for one	Unknown — not stated by the source	8
Operational conditionsidentical
Operating temperature (T-T)	0 - 40 °C	0 - 40 °C
Operating relative humidity (H-H)	8 - 80%	8 - 80%
Weight & dimensions4 differ
Width (without stand)Differs	681.9 mm	440 mm
Depth (without stand)Differs	259.5 mm	170 mm
Height (without stand)Differs	502.8 mm	340 mm
Weight (without stand)Differs	11 kg	2.45 kg
Sustainabilityidentical
Sustainability certificates	ENERGY STAR	ENERGY STAR
Other features1 differ
Ethernet LAN (RJ-45) portsKnown for one	1	Unknown — not stated by the source
CertificationDiffers	TCO 6.0	China Energy Label Tier 1, EU RoHS, China RoHS, Turkey RoHS
Supplied AC adapter type	LED	LED
TV tuner integratedKnown for one	Unknown — not stated by the source	No
Thin Clientidentical
Internal memoryKnown for one	2048 MB	Unknown — not stated by the source
Internal memory typeKnown for one	DDR3L	Unknown — not stated by the source
Graphics cardKnown for one	Tegra K1	Unknown — not stated by the source
Thin client installedKnown for one	Unknown — not stated by the source	No
Poweridentical
AC input voltageKnown for one	Unknown — not stated by the source	100 - 240 V
AC input frequencyKnown for one	Unknown — not stated by the source	50 - 60 Hz
Packaging contentidentical
Cables includedKnown for one	Unknown — not stated by the source	AC

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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