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Product number
  • 861892
  • 856352
  • 862018
  • 872180
  • 867078
Manufacturer code
  • UM.HR0EE.014
  • LU28R550UQRXEN
  • Q2790PQE
  • 275E2FAE/00
  • 288E2A/00
Brand
  • Acer
  • Samsung
  • AOC
  • Philips
  • Philips
Warranty
  • 2 years
  • 2 years
  • 3 years
  • 2 years
  • 3 years
Warranty type
  • Pickup and return warranty
  • Carry-in warranty
  • Carry-in warranty
  • On-site service
  • Next business day on-site warranty
Old product returned for free
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes

Screen size
  • 27 inches
  • 28 inches
  • 27 inches
  • 27 inches
  • 28 inches
Recommended display resolution
  • 2560x1440
  • 3840x2160
  • 2560x1440
  • 2560x1440
  • 3840x2160
Sharpness
  • Quad HD (1440p)
  • 4K (UHD)
  • Quad HD (1440p)
  • Quad HD (1440p)
  • 4K (UHD)
Panel type
  • IPS panel
  • IPS panel
  • IPS panel
  • IPS panel
  • IPS panel
Aspect ratio
  • Standard (16:9)
  • Standard (16:9)
  • Standard (16:9)
  • Standard (16:9)
  • Standard (16:9)
Local dimming
  • Yes
  • No
  • No
  • No
  • No
Response time
  • 1 ms
  • 4 ms
  • 4 ms
  • 4 ms
  • 4 ms
Refresh rate
  • 75 Hz
  • 60 Hz
  • 60 Hz
  • 75 Hz
  • 60 Hz
Pixel density
  • 109 ppi
  • 157,35 ppi
  • 108,79 ppi
  • 109 ppi
  • 157 ppi
Brightness
  • 350 cd/m2
  • 300 cd/m2
  • 350 cd/m2
  • 350 cd/m2
  • 300 cd/m2
HDR support
  • No
  • Yes
  • No
  • No
  • No
Contrast ratio
  • 1000
  • 1000
  • 1000
  • 1000
  • 1000
Touchscreen
  • No
  • No
  • No
  • No
  • No
Screen reflection
  • Anti-reflective
  • Anti-reflective
  • Anti-reflective
  • Anti-reflective
  • Anti-reflective
Curved
  • No
  • No
  • No
  • No
  • No
Blue light filter
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Flicker-free technology
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Color space
  • sRGB
  • sRGB
  • sRGB
  • sRGB
  • sRGB
Color depth
  • 17 million colors (8-bit)
  • 1 billion colors (10 bit)
  • 17 million colors (8-bit)
  • 17 million colors (8-bit)
  • 1 billion colors (10 bit)
Adaptive Sync
  • No
  • Yes
  • No
  • No
  • Yes
Resolution width
  • 2560 pixels
  • 3840 pixels
  • 2560 pixels
  • 2560 pixels
  • 3840 pixels
Resolution height
  • 1440 pixels
  • 2160 pixels
  • 1440 pixels
  • 1440 pixels
  • 2160 pixels
Anti-reflection type
  • Matte
  • Matte
  • Anti glare
  • Anti glare
  • Anti glare
Viewing distance
  • 43 - 115 m
  • 46 - 124 cm
  • 43 - 115 cm
  • 43 - 115 cm
  • 46 - 124 cm
Type of HDR
  • HDR10
G-sync
  • No
G-sync Ultimate
  • No
Type of adaptive sync
  • FreeSync
  • FreeSync
sRGB color coverage percentage
  • 123 %

Height
  • 44,4 cm
  • 47,93 cm
  • 53,1 cm
  • 47,5 cm
  • 48 cm
Width
  • 60,9 cm
  • 63,88 cm
  • 61,5 cm
  • 61,4 cm
  • 63,7 cm
Depth
  • 22,3 cm
  • 25,05 cm
  • 20 cm
  • 23,4 cm
  • 22,4 cm
Weight
  • 3,93 kg
  • 5,8 kg
  • 6,1 kg
  • 5,23 kg
  • 5,59 kg
Color
  • Silver
  • Gray
  • Black
  • Black
  • Black
Including stand
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Material
  • Plastic
  • Plastic
  • Plastic
  • Plastic
  • Plastic
Cable management
  • Yes
  • No
  • Yes
  • Yes
  • Yes
Bezel width (screen edge)
  • 0 mm
  • 9 mm
  • 0 mm
  • 8 mm
Look
  • Neutral
  • Neutral
  • Neutral
  • Neutral
  • Neutral

Number of HDMI ports
  • 1
  • 2
  • 2
  • 2
  • 2
Number of Female HDMI type A 2.0 ports
  • 1
  • 2
  • 2
Number of Female Standard DisplayPort 1.2 ports
  • 1
  • 1
  • 1
  • 1
Number of female 3.5mm TRS Audio Jack ports
  • 1
Number of Female HDMI type A 1.4 ports
  • 2
  • 2
Number of female standard USB-A ports
  • 2
Female standard USB-A port version
  • 3.0
Number of female standard VGA ports
  • 1
Number of female 3.5mm TS Audio Jack ports
  • 1
Type of USB port
  • Standard USB-A
Number of USB ports
  • 2
Number of female 3.5mm TRRS Audio Jack ports
  • 1
  • 1
Number of Female Standard DisplayPort 1.4 ports
  • 1

HDMI cable included
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
DisplayPort cable included
  • No
  • No
  • Yes
  • No
  • No
USB-C cable included
  • No
  • No
  • No
  • No

Adjustable height
  • No
  • No
  • Yes
  • Yes
  • No
Tiltable
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
Pivotable stand
  • No
  • No
  • Yes
  • No
  • No
Pivot function
  • No
  • No
  • Yes
  • No
  • No
VESA mount option
  • Yes
  • Yes
  • Yes
  • Yes
  • Yes
VESA mount
  • 100x00mm
  • 75x75mm
  • 100x00mm
  • 100x00mm
  • 100x00mm

Energy label
  • G
  • G
  • E
  • F
  • G
Energy consumption standby
  • 0,35 W
  • 0,3 W
  • 0,5 W
  • 0,5 W
  • 0,5 W
Energy consumption active
  • 31 W
  • 41 W
  • 25 W
  • 18,55 W
  • 27,6 W
Energy consumption per 1000h
  • 32 kWh
  • 41 kWh
  • 26 kWh
  • 31 kWh
Annual energy consumption
  • 46,72 kWh
  • 59,86 kWh
  • 37,96 kWh
  • 45,26 kWh
Annual energy costs
  • 10,28 euros
  • 13,17 euros
  • 8,35 euros
  • 9,96 euros

Integrated speakers
  • Yes
  • No
  • No
  • Yes
  • Yes
Sound system
  • Stereo
  • Stereo
  • Stereo
Webcam
  • No
  • No
  • No
  • No
  • No
Kensington lock
  • Yes
  • No
  • Yes
  • No
  • Yes
Split screen
  • Yes
  • No
  • Yes

Recommended for use
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  • Image editing and graphic design, Internet, email, and word processing, Watch movies in 4K
  • Internet, email, and word processing, Office work, Watching movies in Full HD
  • Internet, email, and word processing, Watching movies in Full HD
  • Editing photos, Image editing and graphic design, Internet, email, and word processing, Video editing, Watch movies in 4K