Comparison between:
- 39.7" Dell U4025QW
- 27" Dell U2722DE
- 49" Samsung S49DG91
Brand, series, model
Information about the brand, series, model and model aliases.
Display
Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.
| Size class | 39.7 in | 27 in | 49 in |
| Diagonal | 1008.59 mm 100.859 cm 39.7083 in 3.309 ft | 684.66 mm 68.466 cm 26.9551 in 2.2463 ft | 1243.17 mm 124.317 cm 48.9437 in 4.0786 ft |
| Width | 929.28 mm 92.928 cm 36.5858 in 3.0488 ft | 596.736 mm 59.6736 cm 23.4935 in 1.9578 ft | 1196.7 mm 119.67 cm 47.1142 in 3.9262 ft |
| Height | 392.04 mm 39.204 cm 15.4346 in 1.2862 ft | 335.664 mm 33.5664 cm 13.2151 in 1.1013 ft | 339.2 mm 33.92 cm 13.3543 in 1.1129 ft |
| Radius of curvature | 2500 mm 250 cm 98.4252 in 8.2021 ft | - | 1800 mm 180 cm 70.8661 in 5.9055 ft |
| Panel manufacturer | LG Display | - | - |
| Panel model | LM400RW2-SSA1 | - | - |
| Panel type | IPS | IPS | OLED |
| Panel bit depth | 10 bits (8 bits + FRC) | 10 bits (8 bits + FRC) | 10 bits |
| FRC | Yes | Yes | No |
| Colors | 1073741824 colors 30 bits | 1073741824 colors 30 bits | 1073741824 colors 30 bits |
| Aspect ratio | 2.37:1 | 1.778:1 16:9 | 3.556:1 |
| Resolution | 5120 x 2160 pixels | 2560 x 1440 pixels Quad HD (QHD) / 1440p | 5120 x 1440 pixels |
| Pixel pitch | 0.182 mm 0.0182 cm 0.0071 in 0.0006 ft | 0.233 mm 0.0233 cm 0.0092 in 0.0008 ft | 0.234 mm 0.0234 cm 0.0092 in 0.0008 ft |
| Pixel density | 140 ppi 55 ppcm | 109 ppi 42 ppcm | 108 ppi 42 ppcm |
| Display area | 91.83 % | 93.08 % | 92.96 % |
| Backlight | W-LED | W-LED | - |
| sRGB | 100 % | 100 % | - |
| DCI P3 | 99 % | 95 % | 99 % |
| Brightness | 450 cd/m² | 350 cd/m² | 250 cd/m² |
| Peak brightness | 600 cd/m² | - | - |
| Static contrast | 2000 : 1 | 1000 : 1 | 1000000 : 1 |
| HDR | DisplayHDR 600 | - | HDR10+ Gaming DisplayHDR 400 True Black HDR10 |
| Horizontal viewing angle | 178 ° | 178 ° | 178 ° |
| Vertical viewing angle | 178 ° | 178 ° | 178 ° |
| Minimum response time | 5 ms 0.0050 s | 5 ms 0.0050 s | 0.03 ms 0.0000 s |
| Average response time | - | 8 ms 0.0080 s | - |
| Input lag | 4.7 ms 0.0047 s | - | - |
| Coating | Anti-glare/Matte (3H) | Anti-glare/Matte (3H) | Anti-glare/Matte |
3D
3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.
| 3D | No | No | No |
Frequencies
Information about the horizontal and vertical refresh rates/frequencies.
| Horizontal frequency (digital) | - | 31.47 kHz - 88.79 kHz | - |
| Vertical frequency (digital) | 48 Hz - 120 Hz | 56 Hz - 60 Hz | 48 Hz - 144 Hz |
Power supply and consumption
Information about the power supply and consumption, energy efficiency class, etc.
| 110V | 100 V - 120 V | 100 V - 120 V | 100 V - 120 V |
| 220V | 220 V - 240 V | 220 V - 240 V | 220 V - 240 V |
| Alternating current frequency | 50 Hz - 60 Hz | 50 Hz - 60 Hz | 50 Hz - 60 Hz |
| Electric current (A) | - | 2.4 A | - |
| Power consumption (off) | 0.3 W | 0.3 W | - |
| Power consumption (sleep) | 0.5 W | 0.3 W | 0.5 W |
| Power consumption (eco) | - | 20.32 W | - |
| Power consumption (average) | - | 20.4 W | 63 W |
| Power consumption (maximum) | - | 197 W | 220 W |
| Power consumption (annual) | - | 66.74 kWh | 233 kWh |
| Energy efficiency class | - | E | - |
Dimensions, weight and color
Information about the dimensions and the weight of the specific model with and without stand as well as the colors, in which it is offered to the market.
| Width | 946.6 mm 94.66 cm 37.2677 in 3.1056 ft | 611.34 mm 61.134 cm 24.0685 in 2.0057 ft | 1194 mm 119.4 cm 47.0079 in 3.9173 ft |
| Height | 419.1 mm 41.91 cm 16.5 in 1.375 ft | 352.01 mm 35.201 cm 13.8587 in 1.1549 ft | 365.7 mm 36.57 cm 14.3976 in 1.1998 ft |
| Depth | 59.6 mm 5.96 cm 2.3465 in 0.1955 ft | 49.5 mm 4.95 cm 1.9488 in 0.1624 ft | 180.3 mm 18.03 cm 7.0984 in 0.5915 ft |
| Weight | 8.35 kg 18.41 lbs | 4.78 kg 10.54 lbs | 8.8 kg 19.4 lbs |
| Width with stand | 946.6 mm 94.66 cm 37.2677 in 3.1056 ft | 611.34 mm 61.134 cm 24.0685 in 2.0057 ft | 1194 mm 119.4 cm 47.0079 in 3.9173 ft |
| Height with stand | 457.8 mm 45.78 cm 18.0236 in 1.502 ft | 385.13 mm 38.513 cm 15.1626 in 1.2635 ft | 408.3 mm 40.83 cm 16.0748 in 1.3396 ft |
| Depth with stand | 248 mm 24.8 cm 9.7638 in 0.8136 ft | 185 mm 18.5 cm 7.2835 in 0.607 ft | 284.5 mm 28.45 cm 11.2008 in 0.9334 ft |
| Weight with stand | 12.22 kg 26.94 lbs | 7.02 kg 15.48 lbs | 12.6 kg 27.78 lbs |
| Box width | - | - | 1352 mm 135.2 cm 53.2283 in 4.4357 ft |
| Box height | - | - | 475 mm 47.5 cm 18.7008 in 1.5584 ft |
| Box depth | - | - | 239 mm 23.9 cm 9.4094 in 0.7841 ft |
| Box weight | 19.02 kg 41.93 lbs | 10.01 kg 22.07 lbs | 18.1 kg 39.9 lbs |
| Stand width | 385 mm 38.5 cm 15.1575 in 1.2631 ft | 268 mm 26.8 cm 10.5512 in 0.8793 ft | - |
| Stand height | - | 185 mm 18.5 cm 7.2835 in 0.607 ft | - |
| Stand depth | 247 mm 24.7 cm 9.7244 in 0.8104 ft | 381.5 mm 38.15 cm 15.0197 in 1.2516 ft | 284.5 mm 28.45 cm 11.2008 in 0.9334 ft |
| Colors | Black and Silver | Black and silver | Silver |
Ergonomics
Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.
| VESA mount | Yes | Yes | Yes |
| VESA interface | 100 x 100 mm | 100 x 100 mm | 100 x 100 mm |
| Removable stand | Yes | Yes | Yes |
| Height adjustment | Yes | Yes | Yes |
| Height adjustment range | 150 mm 15 cm 5.9055 in 0.4921 ft | 150 mm 15 cm 5.9055 in 0.4921 ft | 120 mm 12 cm 4.7244 in 0.3937 ft |
| Landscape/portrait pivot | No | Yes | No |
| Left pivot | - | 90 ° | - |
| Right pivot | - | 90 ° | - |
| Left/right swivel | Yes | Yes | No |
| Left swivel | 30 ° | 45 ° | - |
| Right swivel | 30 ° | 45 ° | - |
| Forward/backward tilt | Yes | Yes | Yes |
| Forward tilt | 5 ° | 5 ° | 2 ° |
| Backward tilt | 21 ° | 21 ° | 15 ° |
OS, apps and software features
Information about the operating system, applications, various software features if available.
| Operating system (OS) | - | - | Tizen OS |
Audio
Information about the audio system - number and power of the built-in speakers, supported audio technologies.
| Speakers | 2 x 9 W | - | - |
Camera
Many contemporary desktop monitors and smart TV sets have built-in cameras.
| Camera | No | No | No |
Network
Supported network technologies and standards for exchanging data with other devices.
| Network | - | - | Wi-Fi 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Wi-Fi Direct Bluetooth 5.2 |
Connectivity
Available connectivity ports, slots and interfaces.
| Connectivity | 1 x USB 3.2 (Type-C; Gen 2; 10 Gbps; upstream; data only) 2 x USB 3.2 (Type-C; Gen 2; 10 Gbps; downstream; 15W) 4 x USB 3.2 (Type-A; Gen 2; 10 Gbps; downstream) 1 x Ethernet RJ45 (Wake on LAN; PXE boot; MAC address pass-thru) 1 x HDMI 2.1 1 x DisplayPort 1.4 2 x Thunderbolt 4.0 (Type-C; upstream; 140W; DP Alt Mode) 1 x 3.5 mm Audio Out | 1 x USB 3.2 (Type-C; upstream) 1 x USB 3.2 (Type-C; PD 15W) 1 x USB 3.2 (Type-C; DP 1.4; PD 90W) 1 x USB 3.2 (Type-A; BC 1.2) 3 x USB 3.2 (Type-A) 1 x Ethernet RJ45 1 x HDMI 1.4 1 x DisplayPort 1.4 (Output MST) 1 x DisplayPort 1.4 1 x 3.5 mm Audio Out | 1 x USB 3.2 (Type-C; Gen 1; 5 Gbps; upstream; data) 2 x USB 3.2 (Type-C; Gen 1; 5 Gbps; downstream) 1 x HDMI 2.1 (micro) 1 x HDMI 2.1 1 x DisplayPort 1.4 1 x 3.5 mm Audio Out |
| Fixed Rate Link (FRL) High-bandwidth Digital Content Protection (HDCP) 2.2 Internal Multi-Stream Transport (iMST) | High-bandwidth Digital Content Protection (HDCP) 1.4 | High-bandwidth Digital Content Protection (HDCP) 2.2 |
Features
Some additional functional features of the model.
| Features | Adaptive-Sync technology Ambient Light Sensor Auto KVM ComfortView Plus Dell Display Manager Flicker-free technology IPS Black Network KVM Low Blue Light OSD joystick Picture-by-Picture Picture-in-Picture | Dell ComfortView Plus Flicker-free technology Low Blue Light | Adaptive-Sync technology Adaptive Brightness Adaptive Picture AMD FreeSync Premium Pro Apple AirPLay Auto Dimming Auto Source Switch+ Bixby Black Equalizer Contrast Enhancer Eye Saver Mode Far-Field Voice Interaction Flicker-free technology Game Mode HDR Tone Mapping Infinity Core Lighting+ with Core Sync Low Blue Light Matter MiniMap Zoom Multi Control Off Timer Plus Panel Care Picture-by-Picture Picture-in-Picture Picture Modes Quantum Dot Color Remote Access Samsung Daily+ Samsung OLED Safeguard Screen Fit Smart Calibration SmartThings Smart View Tap View Thermal Modulation System Super Arena Gaming UX Super Ultrawide Game View and Game Bar 2.0 Virtual Aim Point Voice Command |
Image file formats
Smart TV sets allow the display of different image file formats.
| Image file formats | - | - | JPEG GIF PNG MPO BMP |
Audio file formats
Smart TV sets allow playing different audio file formats.
| Audio file formats/codecs | - | - | AAC FLAC M4A MIDI MP3 OGG WMA WAV APE AIFF ALAC Vorbis |
Video file formats
Smart TV sets allow playing various video file formats.
| Video file formats/codecs | - | - | 3GPP AVI ASF Flash Video H.263 H.264 H.265 MKV M2TS MP4 MPEG-4 RealVideo TS VC-1 VP7 VP8 VP9 VOB VRO WebM WMV AV1 MOV TRP FLV SVI RMVB |
Certificates, standards and licenses
Licenses from regulatory agencies, standards, certificates.
| Certificates, standards and licenses | Energy Star EPEAT Gold Eye Comfort 3.0 RoHS TCO Certified Displays TÜV Rheinland 5-star Eye Comfort Certified | ENERGY STAR EPEAT Gold TCO Certified Edge Display RoHS NFPA 99 | TÜV Rheinland Flicker-free certified TÜV Rheinland Low Blue Light (Hardware Solution) UL Glare Free |
Operating and storage conditions
There are certain requirements for the environmental conditions, in which the display should be used and stored in order to function properly.
| Operating temperature | 0 °C - 40 °C 32 °F - 104 °F | 0 °C - 40 °C 32 °F - 104 °F | 10 °C - 40 °C 50 °F - 104 °F |
| Operating humidity | 10 % - 80 % | 10 % - 80 % | 10 % - 80 % |
| Operating altitude | 5000 m 16404.2 ft | 5000 m 16404.2 ft | - |
| Storage temperature | -20 °C - 60 °C -4 °F - 140 °F | -20 °C - 60 °C -4 °F - 140 °F | -20 °C - 40 °C -4 °F - 104 °F |
| Storage humidity | 5 % - 90 % | 5 % - 90 % | 5 % - 95 % |
| Storage altitude | 12192 m 40000 ft | 12192 m 40000 ft | - |
Accessories
Often the packaging of desktop monitors and smart TV sets includes accessories for them.
| Accessories | DisplayPort cable HDMI cable Thunderbolt 4 (USB-C) Active Cable USB Type-A to Type-B cable | DisplayPort cable USB Type-C to Type-A cable USB Type-C to Type-C cable | DisplayPort cable USB Type-C to Type-A cable |
Additional features
Information about other features.
| Additional features | Security lock slot | Security lock slot | Anti-theft stand lock slot - Kensington |
| Dell U4025QW | Dell U2722DE | Samsung S49DG91 |


