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Dell UltraSharp 32 4K QD-OLED (U3226Q) vs Dell UltraSharp 52 Thunderbolt Hub (U5226KW)

Every spec side by side, from each maker's published figures.

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DellUltraSharp 32 4K QD-OLED (U3226Q)DellUltraSharp 52 Thunderbolt Hub (U5226KW)
Overview
ReleasedFebruary 2026January 2026
Display
Screen size31.5″51.5″
Resolution3840 × 2160 (4K)6144 × 2560
Sharpness140 pixels per inch129 pixels per inch
PanelQD-OLEDIPS (IPS Black)
Refresh rate120 Hz120 Hz
Response time (grey to grey)0.03 ms5 ms
Brightness (typical)300 nits400 nits
HDR peak brightness1,000 nits–
HDR certificationDisplayHDR True Black 500–
HDR formatsHDR10 (PQ), HLG, Dolby Vision–
Contrast ratio1,500,000:12,000:1
Colour range99% DCI-P3, 99% Display P3, 94% Adobe RGB, 100% sRGB99% DCI-P3, 99% Display P3, 100% BT.709
DCI-P3 coverage99%99%
Colour accuracy (Delta E)Below 1Below 1.5
Screen finishMatteMatte
ShapeFlatCurved (4200R)
Adaptive syncHDMI VRRHDMI VRR
Colour depth1.07 billion colours1.07 billion colours (8-bit + FRC)
sRGB coverage100% (CIE 1931)100% (CIE 1931)
Adobe RGB coverage94% (CIE 1931)–
Colour accuracyDelta E < 1 (average) (DCI-P3 DCI, Display P3 D65, sRGB D65, BT.709 D65); Delta E < 2 (average) (Adobe RGB D65 and D50); HDR Delta E ITP < 3.5 (PQ, HLG)Delta E < 1.5 (average) (sRGB, BT.709, DCI-P3, Display P3)
Colour modesNative, DCI-P3 DCI, Display P3 D65, sRGB D65, BT.709 D65, Adobe RGB D65 and D50, User 1–3, CAL 1–3; HDR PQ 1000 nits, HLG 1000 nits, DisplayHDR True Black 500, Dolby Vision Bright and DarkStandard, Movie, Game, Color Temp. (5,000K to 10,000K), Color Space (sRGB, BT.709, DCI-P3, Display P3), Custom Color
Response time detail–5 ms GTG (Fast mode), 8 ms GTG (Normal mode)
HDR detail1000 cd/m² HDR peak at 3% APL; 80% BT.2020, 99% Display P3–
Variable refresh range48–120 Hz (vertical scan range)–
Viewing angles178° horizontal, 178° vertical (typical)178° horizontal, 178° vertical (typical)
Pixel pitch0.1814 mm x 0.1814 mm0.19644 mm x 0.19644 mm
Eye careComfortView Plus hardware low blue light; TÜV Rheinland Eye Comfort 3.0 (4 star); flicker-freeComfortView Plus (blue light ≤20%), TÜV Rheinland Eye Comfort 3.0 5-star, flicker-free, ambient light sensor with Auto Brightness and Auto Color Temp.
CalibrationBuilt-in colorimeter; calibration stored in CAL 1–3; Dell Color Management and Dell Color Management Console software–
Connections
Video inputs2 × HDMI 2.1, DisplayPort 1.4, Thunderbolt 42 × HDMI 2.1, 2 × DisplayPort 1.4, Thunderbolt 4
USB-C chargingUp to 140 WUp to 140 W
USB ports2 × USB-C, 3 × USB-A, Thunderbolt 42 × USB-C, 5 × USB-A
KVM switchYesYes
EthernetYesYes
SpeakersNoYes
HDMI detail2 x HDMI 2.1 (HDCP 1.4 & 2.2), up to 3840 x 2160 at 120 Hz FRL with VRR2 x HDMI (HDCP 2.2), up to 6144 x 2560 at 120 Hz FRL with VRR as specified in HDMI 2.1; no ARC/eARC or ALLM
DisplayPort detail1 x DisplayPort 1.4 (HDCP 1.4 & 2.2), up to 3840 x 2160 at 120 Hz with DSC2 x DisplayPort 1.4 in (HDCP 2.2), up to 6144 x 2560 at 120 Hz with DSC
USB-C detailThunderbolt 4 upstream (DisplayPort 1.4 Alt Mode, Power Delivery up to 140 W EPR); USB-C 10Gbps upstream (data only); 2 x USB-C 10Gbps downstream quick-access ports (up to 27 W)Thunderbolt 4 upstream (40Gbps, DisplayPort 1.4 with DSC, Power Delivery up to 140 W EPR); 3 x USB-C 10Gbps upstream (data only); 2 x USB-C 10Gbps downstream with 27 W charging
Daisy chainingThunderbolt 4 downstream port (video and data, 15 W)–
USB hub detail2 x USB-A 10Gbps rear; quick access ports with 1 x USB-A 10Gbps (BC 1.2) and 2 x USB-C 10Gbps (27 W)4 x USB-A 10Gbps (rear); pop-out quick access module with 2 x USB-C 10Gbps (27 W) and 1 x USB-A 10Gbps with BC1.2 charging
Picture by picturePicture by Picture and Picture in Picture, with separate colour settings and SDR/HDR per sourcePicture by Picture with Screen Partition (internal MST) and Picture in Picture; USB KVM for up to four PCs, Auto KVM
Speaker detail–2 x 9 W
Design
Stand adjustsHeight, tilt, swivel, pivotHeight, tilt, swivel
VESA mountYesYes
Weight with stand9.84 kg18.23 kg
Height adjustment150 mm90 mm
Tilt-5° to 21°-5° to 10°
Swivel-30° to 30°-20° to 20°
Pivot-90° to 90°No pivot; slant -2° to 2°
VESA pattern100 x 100 mm100 x 100 mm, 200 x 100 mm, 200 x 200 mm
Size with stand718.28 x 217.16 x 473.77–623.77 mm (W x D x H)1223.32 x 255 x 576.79–666.79 mm (W x D x H)
Size without stand718.28 x 65.48 x 436.00 mm (W x D x H)1223.32 x 111.94 x 529.05 mm (W x D x H)
Weight without stand6.43 kg12.95 kg
ControlsJoystick and programmable direct keysJoystick; power and OSD button lock
ColoursBlackPlatinum Silver
Power and support
Power use33.7 W on mode, 0.4 W standby, 1.9 W networked standby, 0.3 W off, 460 W maximum63.6 W on mode, 0.5 W standby, 2.0 W networked standby, 0.3 W off, 430 W maximum
Energy classGG
Power supply100–240 VAC, 50/60 Hz, 5.3 A (typical)100–240 VAC, 50/60 Hz, 5.5 A (maximum)
SoftwareDell Display and Peripheral Manager (Easy Arrange), Dell Color Management, Dell Color Management ConsoleDell Display and Peripheral Manager (Easy Arrange, KVM), Dell Color Management, Dell Device Management Console
CertificationsTÜV Rheinland Eye Comfort 3.0 (4 star), TÜV Rheinland hardware low blue light (Category 2)ENERGY STAR 8.0, EPEAT Gold with Climate+, TCO Certified 10.0 and TCO Certified Edge, TÜV Rheinland Eye Comfort 3.0 (5 star)
Warranty3 years limited hardware with Advanced Exchange Service and Premium Panel Exchange, including burn-in (UK)3 years with Advanced Exchange Service and Premium Panel Exchange (UK)
In the boxStand, monitor hood, power cable, HDMI 2.1 cable (1.8 m), DisplayPort 1.4 cable (1.8 m), Thunderbolt 4 40Gbps 240 W active cable (2 m), USB-C to USB-A 10Gbps cable (1 m), microfibre clothStand (not with the WOST version), power cable, DisplayPort 1.4 cable (1.8 m), HDMI 2.1 cable (1.8 m), USB-C to USB-A 10Gbps cable (1 m), Thunderbolt 4 40Gbps cable (2 m)

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