Dell UltraSharp 27 4K Thunderbolt Hub (U2725QE) vs Lenovo ThinkVision P27UD-40

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UltraSharp 27 4K Thunderbolt Hub (U2725QE) compared with ThinkVision P27UD-40

	DellUltraSharp 27 4K Thunderbolt Hub (U2725QE)	LenovoThinkVision P27UD-40
Overview
Released
Released	February 2025	July 2026
Display
Screen size
Screen size	27″	27″
Resolution
Resolution	3840 × 2160 (4K)	3840 × 2160 (4K)
Sharpness
Sharpness	163 pixels per inch	163 pixels per inch
Panel
Panel	IPS (IPS Black)	IPS
Refresh rate
Refresh rate	120 Hz	120 Hz
Response time (grey to grey)
Response time (grey to grey)	5 ms	4 ms (better)
Brightness (typical)
Brightness (typical)	450 nits (better)	350 nits
HDR formats
HDR formats	–	HDR10
HDR certification
HDR certification	DisplayHDR 600	–
Contrast ratio
Contrast ratio	3,000:1	1,500:1
Colour range
Colour range	99% DCI-P3	98% DCI-P3, 99% sRGB, 99% BT.709
DCI-P3 coverage
DCI-P3 coverage	99% (better)	98%
Colour accuracy (Delta E)
Colour accuracy (Delta E)	Below 1.5	–
Screen finish
Screen finish	Matte	Matte
Shape
Shape	Flat	Flat
Adaptive sync
Adaptive sync	–	HDMI VRR
Colour depth
Colour depth	1.07 billion colours	10-bit (8-bit + FRC), 1.07 billion colours
sRGB coverage
sRGB coverage	100% (CIE 1931)	99% (CIE 1931)
Colour accuracy
Colour accuracy	Delta E < 1.5 (average) (sRGB, BT.709, DCI-P3, Display P3)	Average Delta E < 2 for sRGB and DCI-P3
HDR detail
HDR detail	600 cd/m² HDR peak	–
Response time detail
Response time detail	5 ms (Fast mode), 8 ms (Normal mode)	4 ms grey-to-grey in Extreme mode, 6 ms in Normal mode
Variable refresh range
Variable refresh range	–	24–120 Hz (HDMI 2.1 VRR; Dynamic Refresh Rate in Windows)
Viewing angles
Viewing angles	178° horizontal, 178° vertical (typical)	178° / 178°
Pixel pitch
Pixel pitch	0.1554 mm x 0.1554 mm	0.1554 × 0.1554 mm
Eye care
Eye care	ComfortView Plus (blue light ≤35%), TÜV Rheinland Eye Comfort 3.0 5-star, flicker-free, ambient light sensor with Auto Brightness	TÜV Rheinland Eye Comfort 5 Stars, TÜV Rheinland Low Blue Light (hardware), Eyesafe Display 2.0, Natural Low Blue Light
Calibration
Calibration	–	Factory calibrated; calibration report in the box
Connections
Video inputs
Video inputs	HDMI 2.1, DisplayPort 1.4, Thunderbolt 4	Thunderbolt 4, HDMI 2.1, DisplayPort 1.4
USB-C charging
USB-C charging	Up to 140 W	Up to 140 W
USB ports
USB ports	2 × USB-C, 5 × USB-A, Thunderbolt 4	USB-C, 4 × USB-A, Thunderbolt 4
KVM switch
KVM switch	–	Yes
Ethernet
Ethernet	Yes	Yes
Speakers
Speakers	No	No
HDMI detail
HDMI detail	1 x HDMI, up to 3840 x 2160 at 120 Hz FRL with VRR as specified in HDMI 2.1; no ARC/eARC or ALLM	HDMI 2.1 (TMDS), 3840 × 2160 at 120 Hz
DisplayPort detail
DisplayPort detail	1 x DisplayPort 1.4 in with DSC (DRR for Microsoft Windows); 1 x DisplayPort 1.4 out	DisplayPort 1.4 (HBR3) in, up to 32.4 Gbps; DisplayPort 1.4 out
USB-C detail
USB-C detail	Thunderbolt 4 upstream (DisplayPort 1.4 with DSC, Power Delivery 140 W); USB-C 10Gbps upstream for KVM; 2 x USB-C 10Gbps downstream in the quick access ports	Thunderbolt 4 upstream (40 Gbps) with PD 3.1 up to 140 W and DisplayPort 1.4 Alt Mode (HBR3); Thunderbolt 4 out
Daisy chaining
Daisy chaining	Thunderbolt 4 downstream port (15 W) or DisplayPort 1.4 out	Up to 2 displays, via Thunderbolt 4 out or DisplayPort out
USB hub detail
USB hub detail	4 x USB-A 10Gbps; quick access ports with 1 x USB-A 10Gbps (BC 1.2) and 2 x USB-C 10Gbps	4 × USB-A (USB 5 Gbps, one with BC 1.2), 1 × USB-C (USB 5 Gbps, 15 W, data only); USB-B and Thunderbolt 4 upstream
Picture by picture
Picture by picture	–	PIP and PBP
Speaker detail
Speaker detail	–	None built in; supports the optional ThinkVision MS30 Monitor Soundbar
Webcam detail
Webcam detail	–	None built in; supports the optional ThinkVision VoIP Stack MC60 and Lenovo LC50 monitor webcams
Audio out
Audio out	3.5 mm analog 2.0 audio line out	–
Design
Stand adjusts
Stand adjusts	Height, tilt, swivel, pivot	Height, tilt, swivel, pivot
VESA mount
VESA mount	Yes	Yes
Weight with stand
Weight with stand	7.06 kg	6.8 kg
Height adjustment
Height adjustment	150 mm	155 mm
Tilt
Tilt	-5° to 21°	−5° to 23.5°
Swivel
Swivel	-45° to 45°	−45° to 45°
Pivot
Pivot	-90° to 90°	−90° to 90°
VESA pattern
VESA pattern	100 x 100 mm	100 × 100 mm
Size with stand
Size with stand	612.44 x 189.00 x 385.68–535.68 mm (W x D x H)	613.4 × 195.0 × 384.1–539.1 mm (W × D × H)
Size without stand
Size without stand	612.44 x 55.60 x 353.51 mm (W x D x H)	613.4 × 46.0 × 357.0 mm (W × D × H)
Weight without stand
Weight without stand	5.22 kg	4.6 kg
Colours
Colours	Silver	Raven Black
Power and support
Power use
Power use	25.4 W on mode, 0.5 W standby, 1.5 W networked standby, 0.3 W off, 325 W maximum	19 W typical, 226 W max, 17.3 W ENERGY STAR on-mode, < 0.5 W sleep, < 0.3 W off
Energy class
Energy class	–	D
Power supply
Power supply	100–240 VAC, 50/60 Hz, 4 A (maximum)	Built-in, 100–240 V AC, 50–60 Hz
Software
Software	Dell Display and Peripheral Manager (Easy Arrange)	Lenovo Display Fleet Manager (LDFM), Lenovo Accessories and Display Manager (LADM)
Certifications
Certifications	ENERGY STAR, EPEAT Gold with Climate+, TCO Certified, TCO Certified Edge, TÜV Rheinland Eye Comfort 3.0 (5 star)	ENERGY STAR 8.0, TCO 10, TCO Edge 2.1, EPEAT Gold, RoHS
Warranty
Warranty	3 years limited hardware with Advanced Exchange Service (UK)	3-year limited
In the box
In the box	Stand, power cable, DisplayPort cable (1.8 m), USB-A to USB-C upstream cable (1 m), Thunderbolt 4 passive cable (1 m)	Monitor with stand, power cable (1.8 m), DP 1.4 cable (1.8 m), USB-A to USB-B cable (1.8 m), Thunderbolt cable (1 m, 40 Gbps), factory calibration report, quick setup guide