Product comparison · 2 monitors

Lenovo 28 4K2K Tegra K1 vs Lenovo LI2721sw computer monitor

27specifications compared
21differ
6identical
52known for one product only

Key differences

Display diagonal
- 28 4K2K Tegra K1:71.1 cm (28")
- LI2721sw computer monitor:68.6 cm (27")
Display resolution
- 28 4K2K Tegra K1:3840 x 2160 pixels
- LI2721sw computer monitor:1920 x 1080 pixels
Touchscreen
- 28 4K2K Tegra K1:Yes
- LI2721sw computer monitor:No
HD type
- 28 4K2K Tegra K1:4K Ultra HD
- LI2721sw computer monitor:Full HD
Response time
- 28 4K2K Tegra K1:5 ms
- LI2721sw computer monitor:7 ms
Supported graphics resolutions
- 28 4K2K Tegra K1:3840 x 2160
- LI2721sw computer monitor:1920 x 1080 (HD 1080)
Viewing angle, horizontal
- 28 4K2K Tegra K1:170°
- LI2721sw computer monitor:178°
Viewing angle, vertical
- 28 4K2K Tegra K1:160°
- LI2721sw computer monitor:178°

Side by side

Differences highlightedShow differences only

Comparison of 28 4K2K Tegra K1, LI2721sw
79 specifications	A Lenovo 28 4K2K Tegra K1 View product	B Lenovo LI2721sw computer monitor Model LI2721sw View product
Display9 differ
Display diagonalDiffers	71.1 cm (28")	68.6 cm (27")
Display resolutionDiffers	3840 x 2160 pixels	1920 x 1080 pixels
TouchscreenDiffers	Yes	No
HD typeDiffers	4K Ultra HD	Full HD
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 timeDiffers	5 ms	7 ms
Screen shapeKnown for one	Flat	Unknown — not stated by the source
Supported graphics resolutionsDiffers	3840 x 2160	1920 x 1080 (HD 1080)
Viewing angle, horizontalDiffers	170°	178°
Viewing angle, verticalDiffers	160°	178°
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
Panel typeKnown for one	Unknown — not stated by the source	IPS
Backlight typeKnown for one	Unknown — not stated by the source	W-LED
Display brightness (typical)Known for one	Unknown — not stated by the source	250 cd/m²
Display surfaceKnown for one	Unknown — not stated by the source	Matt
Supported video modesKnown for one	Unknown — not stated by the source	1080p
Contrast ratio (dynamic)Known for one	Unknown — not stated by the source	10000000:1
Viewable size diagonalKnown for one	Unknown — not stated by the source	68.6 cm
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	1
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	Yes
AC (power) inKnown for one	Unknown — not stated by the source	Yes
Ergonomics2 differ
Height adjustmentDiffers	Yes	No
Swivel angle rangeKnown for one	-45 - 45°	Unknown — not stated by the source
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	Yes
Cable lock slot typeKnown for one	Unknown — not stated by the source	Kensington
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 40 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	8 - 80%	Unknown — not stated by the source
Weight & dimensions4 differ
Width (without stand)Differs	681.9 mm	625.6 mm
Depth (without stand)Differs	259.5 mm	189.8 mm
Height (without stand)Differs	502.8 mm	445.4 mm
Weight (without stand)Differs	11 kg	5.8 kg
Other features1 differ
Ethernet LAN (RJ-45) portsKnown for one	1	Unknown — not stated by the source
CertificationDiffers	TCO 6.0	VESA DDC2B/CI, EDID 1.3, VESA DPMS-compliant ENERGY STAR 3, qualified ISO 9241-307 FCC Class B TCO (TCO Displays 5.2), WEEE (EU Directive 2002/96/EC), RoHS (EU Directive 2002/95/EC)
On/off switchKnown for one	Unknown — not stated by the source	Yes
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
Power consumption (typical)Known for one	Unknown — not stated by the source	35 W
Power consumption (standby)Known for one	Unknown — not stated by the source	0.5 W
Power consumption (max)Known for one	Unknown — not stated by the source	42 W
Packaging contentidentical
Cables includedKnown for one	Unknown — not stated by the source	AC, VGA
ManualKnown for one	Unknown — not stated by the source	Yes

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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