Model Name 55N18G  
OS Samsung TizenOS TV  
Chasis NT72690  
Digital TV or ATV Digital TV  
Display Technology QD-miniLED  
Picture and Sound
Back Light Unit QD-miniLED  
Resolution 3840*2160  
Backlight zone 198  
Refresh Rate 60Hz  
Average Brightness (cd/m2) ＞500   
Peak Brightness(cd/m2) ＞800  
Contrast Ratio ＞1000000:1  
Color gamut ＞85%NTSC  
Viewing Angle (H/V) 178°/178°(typ.)  
Life Time ＞20,000hrs (min)  
Color 1.07B (8bit+FRC)  
Sound out Internal speaker/ HDMI ARC /Optical/Bluetooth  
Internal  Speakers  type BOX speakers  
Internal Speaker Powers 2*10W  
Digital Sound out PCM/DOLBY Digital PLUS/ HEAAC  
Auto voice control Yes  
Surround Yes  
HW INFO.
Operating System Samsung TizenOS 8.0  
CPU ARM CA53 Quad-core  
GPU Mali-G52-2EE MC1  
Coprocessor 4 core  
DDR/Flash DDR 1.5GB / eMMC 8GB  
DTV DVB-T/C/T2/S/S2/ISDB-T/ATSC  
Audio MPEG1 layer 1/2,MPEG 2 layer 2, Dolby digital, Dolby digital plus.   
Image Processing Technology HDR / HLG/ HDR+  
Color System PAL/SECAM  
Media  Format    MPEG-4, H.264, H.265,VP9，Doiby digital，Dolby digital plus，Dolby MS11, Dolby MS12, MPEG1/2,VC-1,XVID  
Voice Control YES  
Bluetooth YES  
SAMSUNG TV PLUS YES  
SAMSUNG  GAMING Hub YES  
Multi-screen YES  
Apple homekit YES  
Apple airplay YES  
Bluetooth surround YES  
WiFi IEEE 802.11 b/g/n/AC  2.4G/5G  
Software features
ATV PAL/SECAM/NTSC  
DTV DVB/ISDB-T/ATSC/DTMB(OPTION)  
OSD English,  Spanish, French, Portuguese etc.  
Apps Netflix,YouTube，Prime video，Densiy+，AIRPLAY, APPLE HOMEKIT, Browser,SAMSUNG TV APP Store, Media, etc.  
Browser Native browser  
Favourite Programs Yes  
Programs Searching Yes  
Recording Yes  
Sleep Timer off/10/20/30/60/90/120/180/240min  
Software upgrading USB / OTA  
BASIC Info.
Power Supply AC100-240V~  50/60HZ  
Power Consumption-TV on ≤ 400W  
Power Consumption-Standby ≤0.5W  
Packaged Dimension (L*H*W) 1615*180*991mm