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Compare HP E34m G4 vs Dell P3421W vs Dell P2720DC

Connectivity

Ports
1x USB (Type-C; 5 Gbps upstream; 65W; DP Alt Mode), 1x Ethernet RJ45, 1x DisplayPort 1.2, 1x 3.5 mm Audio Out, 1x HDMI 2.0, 4x USB (Type-A; 5 Gbps downstream), 1x USB (Type-B; upstream)
2x USB 3.2 (Type-A; Gen 1; downstream; 5 Gbps), 1x USB 3.2 (Type-B; Gen 1; upstream), 1x DisplayPort 1.2, 1x HDMI 2.0, 2x USB 2.0 (Type-A; downstream), 1x USB 3.1 (Type-C; upstream; 65W; DP Alt Mode)
1x USB 3.1 (Type-C; DisplayPort; 65W), 1x HDMI 1.4, 1x DisplayPort 1.2 (in), 1x DisplayPort 1.2 (out), 2x USB 2.0 (downstream), 2x USB 3.0 (downstream)

Construction

Adjustment | Height
150 mm / 5.9055 in
150 mm / 5.9055 in
130 mm / 5.1181 in
Adjustment | Pivot
N/A
-4° ~ 4°
-90° ~ 90°
Adjustment | Swivel
-30° ~ 30°
-30° ~ 30°
-45° ~ 45°
Adjustment | Tilt
-5° ~ 20°
-5° ~ 21°
-5° ~ 21°
Camera
Yes
No
No
Colors
Black and Silver
Black and Silver
Black
Form Factor
Curved monitor
Curved monitor
Speakers
2x 5W
2x 5W
VESA Mount
100 x 100 mm
100 x 100 mm
100 x 100 mm

Dimensions

Bezels
84.8% screen-to-body ratio
89.95% screen-to-body ratio
Size | Depth
4.3 in / 109.1 mm w/o stand
9.35 in / 237.4 mm w/ stand
1.72 in / 43.6 mm w/o stand, 7.28 in / 185 mm w/ stand
Size | Height
15.28 in / 388.1 mm w/o stand
15.4 in / 391.1 mm w/ stand
14.33 in / 364.1 mm w/o stand, 15.56 in / 395.3 mm w/ stand
Size | Width
31.82 in / 808.3 mm
32.11 in / 815.7 mm
24.08 in / 611.6 mm
Weight
12 kg / 26 lbs w/ stand
6.7 kg / 15 lbs w/o stand
4.97 kg / 11 lbs w/o stand , 7.27 kg / 16 lbs w/ stand

Display

Aspect Ratio
21:9
21:9
16:9
Brightness
400 nits
300 nits
350 nits
Contrast Ratio
3000:1 (static)
1000:1 (static)
1000:1 (static)
Display Backlight
W-LED
W-LED
W-LED
Display Color Depth
8 bits, 16777216 colors
10 bits, 1073741824 colors
8 bits, 16777216 colors
Display Curvature
1500R
3800R
Display Diagonal
34" (34 in / 863.6 mm)
34" (34.14 in / 867.2 mm)
27" (26.96 in / 684.7 mm)
Display Type
VA, Anti-glare/Matte
IPS, Anti-glare/Matte (3H), LG Display
IPS, Anti-glare/Matte (3H)
Gamut
99% sRGB
99% sRGB
99% sRGB
Pixel Density
109 ppi
109 ppi
109 ppi
Pixel Pitch
0.232 mm
0.233 mm
0.233 mm
Refresh Rate
48 Hz ~ 75 Hz
60 Hz
49 Hz ~ 75 Hz
Resolution
UW-QHD (3440x1440)
UW-QHD (3440x1440)
QHD (2560x1440)
Response Time
5 ms (min)
5 ms (min) / 8 ms (avg)
5 ms (min) / 8 ms (avg)
Viewing Angle
178° H / 178° V
178° H / 178° V
178° H / 178° V

Function

Licenses
BIS, BSMI, CB, CCC, CE, CECP, CEL, CEL Grade 1, cTUVus, EAC, ENERGY STAR, E-standby, EPEAT, FCC, ISO 9241-307, KC/KCC, NOM, PSB, RCM, SEPA, TCO Certifed, TCO Certifed Edge, TUV-S, TÜV Low Blue Light Hardware Solution certified, VCCI, Vietnam MEPS, WEEE...
Energy Star, EPEAT, RoHS, TCO Certified Displays, TUV Rheinland Flicker Free Certified, TUV Rheinland Low Blue Light Certified
EnergyStar, EPEAT, TCO-certified, RoHS, BFR/PVC free, NFPA 99
Operating Humidity
20 % ~ 80 %
10 % ~ 80 %
10 % ~ 80 %
Operating Temperature
5 °C ~ 35 °C , 41 °F ~ 95 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
0 °C ~ 40 °C , 32 °F ~ 104 °F
Video
HP Display Center, HP Display Manager, Low Blue Light, HP Eye Ease, 3-sided micro-edge design, Flicker-free technology
KVM Switch, Low Blue Light, Picture-in-Picture, Picture-by-Picture, ComfortView, Flicker-free technology
Dell Express Daisy Chaining, Always On power delivery, Flicker-free technology, Low Blue Light

Performance

Power Consumption
65 W (average) / 185 W (max) / 0.5 W (sleep)
32.75 W (average) / 126 W (max) / 0.3 W (sleep) / 0.3 W (off)
24 W (average) / 130 W (max) / 19.2 W (eco) / 0.3 W (sleep) / 0.3 W (off)

Production

Accessory
USB Type-C to Type-C cable
DisplayPort cable, HDMI cable, USB Type-A to Type-B cable, USB Type-C to Type-C cable
DisplayPort cable, USB Type-C cable
Debut
2022
2020
2019

Reviews

Neofiliac score
74%
64%
50%
Pros
  • Beautifully built
  • Built-in camera
  • Ultra-wide form factor
  • 1500R curvature
  • Stand with tilt, swivel, and height adjustments
  • High 3000:1 contrast ratio
  • Build-in speakers included
  • Ultra-wide form factor
  • 3800 curvature
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • 10-bit display panel
  • Build-in speakers included
  • Stand with tilt, swivel, pivot, and height adjustments
  • High 1000:1 contrast ratio
  • Integrated USB-C hub
Cons
  • No publicized HDR support
  • 8-bit display panel
  • No publicized HDR support
  • No publicized HDR support
  • 8-bit display panel

Price

Offers (incl. referral links)
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