Comparison between LG 27UL850 vs LG 34UC99

General Info
Model Number	LG 27UL850	LG 34UC99

Price	Check on Amazon	Check on Amazon
Type	Monitor	Monitor
Year	2018	2017
Brand	LG	LG
Model Number	27UL850	34UC99
Alias	27UL850-W	34UC99-W
Display
Screen Size Class	27" (inches)	34" (inches)
Diagonal Size	26.96 in 68.5 cm 684.7 mm 2.25 ft	34 in 86.4 cm 863.6 mm 2.83 ft
Screen Width	23.49 in 59.7 cm 596.736 mm 1.96 ft	31.49 in 80 cm 799.8 mm 2.62 ft
Screen Height	13.22 in 33.6 cm 335.664 mm 1.1 ft	13.18 in 33.5 cm 334.8 mm 1.1 ft
Display Curvature		1900
Display Manufacturer		LG Display
Display Type	IPS	AH-IPS
Display Bit Depth	10 bits (8 bits + FRC)	10 bits (8 bits + FRC)
Frame Rate Control	Yes	Yes
Max Number of Colors	1073741824	1073741824
Bits	30	30
Screen Aspect Ratio	16:9	21:9
Screen Resolution	3840 x 2160	3440 x 1440
Screen Pixel Pitch	0.155 mm	0.233 mm
Screen Pixel Density	163 ppi	109 ppi
Screen-to-Body Ratio	89.77 %	90.77 %
Backlight Source	W-LED	W-LED
sRGB	99 %	99 %
Screen Brightness	350 cd/m²	300 cd/m²
Max Screen Brightness	400 cd/m²
Static Screen Contrast	1000 : 1	1000 : 1
Dynamic Screen Contrast		5000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag		10 ms
Display Minimum Response Time	5 ms	5 ms
Display Average Response Time		15 ms
Display Maximum Response Time		25 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (3H)
HDR	HDR10 DisplayHDR 400
3D	No	No
Size, weight, color
Case Depth	1.77 in 4.5 cm 45 mm 0.15 ft	3.49 in 8.9 cm 88.7 mm 0.29 ft
Case Weight	4.6 kg 10 lbs	6.4 kg 14 lbs
Case Width with Stand	24.13 in 61.3 cm 613 mm 2.01 ft	32.19 in 81.8 cm 817.6 mm 2.68 ft
Case Height with Stand	17.72 in 45 cm 450 mm 1.48 ft	19.01 in 48.3 cm 482.8 mm 1.58 ft
Case Depth with Stand	9.21 in 23.4 cm 234 mm 0.77 ft	10.21 in 25.9 cm 259.4 mm 0.85 ft
Case Weight with Stand	6.1 kg 13 lbs	8.4 kg 18 lbs
Case Color	White, Gray	White
Hardware
Built-in Camera	No	No
Connectivity	2 x HDMI 2.0 1 x DisplayPort 1.4 1 x 3.5 mm Audio Out 2 x USB 3.0 (downstream) 1 x USB 3.0 (Type-C - 60 W)	1 x USB 3.0 (upstream) 2 x HDMI 2.0 1 x 3.5 mm Audio Out 1 x DisplayPort 1.2 1 x USB (Type-C) 2 x USB 3.0 (downstream)
Audio
Audio Speakers	2 x 5W	2 x 7W
Features
Cool Features	Black Stabilizer DDC/CI Flicker-free technology Super Resolution+ HDCP (High-bandwidth Digital Content Protection) 2.2 Dynamic Action Sync 6-Axis Control AMD FreeSync technology	Black Stabilizer Flicker-free technology Picture-by-Picture Quick Charge Picture-in-Picture HDCP (High-bandwidth Digital Content Protection) 6-Axis Control Screen Split 2.0 AMD FreeSync technology
Extra Features	Anti-theft stand lock slot - Kensington	Anti-theft stand lock slot
Ergonomics
Case Width	24.13 in 61.3 cm 613 mm 2.01 ft	32.19 in 81.8 cm 817.6 mm 2.68 ft
Case Height	14.33 in 36.4 cm 364 mm 1.19 ft	14.2 in 36.1 cm 360.8 mm 1.18 ft
Vesa Mount Support	Yes	Yes
VESA Interface Standard Size	100 x 100	100 x 100
Removable VESA Stand	Yes	Yes
Height Adjustment	Yes	Yes
Height Adjustment Range	110 mm 11 cm 4.3307 in 0.3609 ft	110 mm 11 cm 4.3307 in 0.3609 ft
Landscape or Portrait Pivot Support	Yes	No
Left Pivot	90 °
Right Pivot	90 °
Left or Right Swivel Support	No	No
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	5 °
Backward Tilt	20 °	15 °
Frequency and Interpolation
Vertical Digital Frequency	40 Hz - 61 Hz	55 Hz - 75 Hz
Horizontal Digital Frequency		30 kHz - 90 kHz
Accessories
Extras	DisplayPort cable HDMI cable USB Type-C cable	DisplayPort cable HDMI cable USB Type-C cable
Certificates and Standards
Licenses	C-Tick CCC CECP CEL cUL ENERGY STAR 7.0 ErP FCC Class B KC RoHS Compliant TÜV/GS VCCI	BSMI CCC CE cTick ENERGY STAR 6.0 ErP FCC Class B UL/cUL
Usage and Storage Requirements
Safe Operating Temperature Level	5 °C - 35 °C 41 °F - 95 °F	0 °C - 40 °C 32 °F - 104 °F
Safe Operating Humidity Level	10 % - 85 %	10 % - 80 %
Internal Storage Temperature		-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity		5 % - 85 %

LG 27UL850

LG 34UC99