Comparison between LG 38UC99 vs Samsung C34J791

General Info
Model Number	LG 38UC99	Samsung C34J791

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Type	Monitor	Monitor
Year	2016	2018
Brand	LG	Samsung
Model Number	38UC99	C34J791
Alias	38UC99-W	LC34J791WTEXXS
Display
Screen Size Class	38" (inches)	34" (inches)
Diagonal Size	37.5 in 95.3 cm 952.5 mm 3.13 ft	34 in 86.4 cm 863.6 mm 2.83 ft
Screen Width	34.76 in 88.3 cm 882.816 mm 2.9 ft	31.49 in 80 cm 799.8 mm 2.62 ft
Screen Height	14.48 in 36.8 cm 367.84 mm 1.21 ft	13.18 in 33.5 cm 334.8 mm 1.1 ft
Display Curvature	2300	1500
Display Manufacturer	LG Display	Samsung
Display Type	AH-IPS	SVA
Display Bit Depth	10 bits (8 bits + FRC)	8 bits
Frame Rate Control	Yes	No
Max Number of Colors	1073741824	16777216
Bits	30	24
Screen Aspect Ratio	24:10	21:9
Screen Resolution	3840 x 1600	3440 x 1440
Screen Pixel Pitch	0.23 mm	0.233 mm
Screen Pixel Density	110 ppi	109 ppi
Screen-to-Body Ratio	92.1 %	91.27 %
Backlight Source	W-LED	Edge LED
sRGB	99 %	125 %
Adobe RGB 1998	70 %	92 %
NTSC 1953	72 %
Screen Brightness	300 cd/m²	300 cd/m²
Static Screen Contrast	1000 : 1	3000 : 1
Dynamic Screen Contrast	5000000 : 1	100000000 : 1
Screen Horizontal Viewing Angle	178 °	178 °
Screen Vertical Viewing Angle	178 °	178 °
Screen Input Lag	25 ms	6 ms
Display Minimum Response Time	5 ms	4 ms
Display Average Response Time	10 ms	14 ms
Display Maximum Response Time	15 ms
Display Coating	Anti-glare/Matte (3H)	Anti-glare/Matte (2H)
3D	No	No
Size, weight, color
Case Depth	3.6 in 9.2 cm 91.5 mm 0.3 ft	6.57 in 16.7 cm 167 mm 0.55 ft
Case Weight	7.7 kg 17 lbs	6.3 kg 14 lbs
Case Width with Stand	35.32 in 89.7 cm 897.2 mm 2.94 ft	31.84 in 80.9 cm 808.7 mm 2.65 ft
Case Height with Stand	18.35 in 46.6 cm 466.2 mm 1.53 ft	20.31 in 51.6 cm 516 mm 1.69 ft
Case Depth with Stand	9.07 in 23 cm 230.4 mm 0.76 ft	12.18 in 30.9 cm 309.4 mm 1.02 ft
Case Weight with Stand	9.3 kg 20 lbs	7.7 kg 17 lbs
Case Color	White	White, Silver
Hardware
Built-in Camera	No	No
Connectivity	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)	1 x DisplayPort 1.2 2 x Thunderbolt 3.0 1 x 3.5 mm Audio Out 2 x USB 2.0 (downstream) 1 x HDMI 1.4
Audio
Audio Speakers	2 x 10W	2 x 7W
Features
Cool Features	Black Stabilizer Flicker-free technology Screen Split Dynamic Action Sync Picture-by-Picture HDCP (High-bandwidth Digital Content Protection) DDC/CI 6-Axis Control Picture-in-Picture AMD FreeSync technology Quick Charge	Eye Saver Mode Flicker-free technology Picture-by-Picture Picture-in-Picture HDCP (High-bandwidth Digital Content Protection) AMD FreeSync technology Eco Saving Plus
Extra Features	Anti-theft stand lock slot	Anti-theft stand lock slot - Kensington
Ergonomics
Case Width	35.32 in 89.7 cm 897.2 mm 2.94 ft	31.84 in 80.9 cm 808.7 mm 2.65 ft
Case Height	15.47 in 39.3 cm 393 mm 1.29 ft	14.28 in 36.3 cm 362.8 mm 1.19 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	100 mm 10 cm 3.937 in 0.3281 ft
Landscape or Portrait Pivot Support	No	No
Left or Right Swivel Support	No	No
Forward and Backward Tilt Support	Yes	Yes
Forward Tilt	5 °	2 °
Backward Tilt	20 °	34 °
Frequency and Interpolation
Vertical Digital Frequency	56 Hz - 75 Hz	48 Hz - 100 Hz
Horizontal Digital Frequency	30 kHz - 101 kHz	30 kHz - 152 kHz
Accessories
Extras	DisplayPort cable Factory calibration report HDMI cable USB Type-C cable USB 3.0 cable
Certificates and Standards
Licenses	BSMI CCC CE cTick ENERGY STAR 6.0 FCC Class B UL/cUL	ENERGY STAR FCC Class B ISO9241-307 TÜV/Ergonomics
Usage and Storage Requirements
Safe Operating Temperature Level	0 °C - 40 °C 32 °F - 104 °F	10 °C - 40 °C 50 °F - 104 °F
Safe Operating Humidity Level	10 % - 80 %	10 % - 80 %
Internal Storage Temperature	-20 °C - 60 °C -4 °F - 140 °F	-20 °C - 60 °C -4 °F - 140 °F
Internal Storage Humidity	5 % - 85 %	5 % - 95 %

LG 38UC99

Samsung C34J791