1-on-1 Comparison

Side-by-Side Comparison

LG 55SM9000PUA

LG 55SK9000PUA

SCORE:
92
SCORE:
89

Highlights

  • 4K UHD (3840 x 2160) NanoCell Display
  • HDR10, Dolby Vision, HLG support
  • Full Array Local Dimming
  • NanoCell Color Pro
  • Wide Viewing Angle
  • α7 Gen2 Intelligent Processor
  • Ethernet, Wi-Fi, Bluetooth

Highlights

  • 4K UHD (3840 x 2160) NanoCell Display
  • HDR10, Dolby Vision, HLG support
  • Full Array Local Dimming
  • NanoCell Color Pro
  • Wide Viewing Angle
  • α7 Intelligent Processor
  • Ethernet, Wi-Fi, Bluetooth

Disclosure: We earn money from the affiliate links to products associated with content in this article.

Content

Overview

Here we are comparing LG 55SM9000PUA to LG 55SK9000PUA to reveal their common strengths and weaknesses as well as the differences between them which will help you in making a correct decision before the purchase. Both models have the same 4K UHD (3840 x 2160) resolution and they both support HDR.

We have evaluated the TVs from available features and specifications. LG 55SM9000PUA gets higher overall score in our ranking system which is based on the display specifications, video, audio and other features, connectivity and format support.

LG 55SM9000PUA

LG 55SK9000PUA

DISPLAY
90
VIDEO FEATURES
95
AUDIO FEATURES
94
OTHER FEATURES
95
CONNECTIVITY
94
FORMAT SUPPORT
85
OVERALL
92
DISPLAY
88
VIDEO FEATURES
94
AUDIO FEATURES
84
OTHER FEATURES
83
CONNECTIVITY
91
FORMAT SUPPORT
85
OVERALL
89

Advantage of LG 55SM9000PUA

This section shows the features and specifications which are the reason to choose LG 55SM9000PUA over LG 55SK9000PUA.

LG 55SM9000PUA vs LG 55SK9000PUA
4K HFR 4K HFR via HDMI will be updated vs
2K HFR vs
Noise Reduction Quad Step NR vs NR
Deep Learning AI Picture vs
AI Brightness vs
Sharpness Frequency based Sharpness Enhancer vs
Dynamic Tone Mapping Dynamic Tone Mapping Pro vs Enhanced Dynamic Tone Mapping
AI Sound vs
WiSA Ready Separate Dongle Purchase Required vs
Smart Speaker Compatible vs
LG Smart Speaker vs
Newer Bluetooth Version 5.0 vs 4.2
Apple Airplay Airplay 2 vs
LG TV Plus App vs
Smart ThinQ App vs
HDMI Version 2.1 vs 2.0b
More RAM 3 GB vs 2 GB
More Storage 8 GB vs 4 GB
Amazon Echo Compatible vs
AI UX vs
AI Home vs
AI Recommendation Default: off vs
Intelligent Edit vs
Home Dashboard vs
Apple HomePod vs
Magic Link Default: off vs
360 VR vs
Mobile TV On vs
Wi-Fi TV On vs
Bluetooth Low Energy On vs
Hotel Mode vs
Time Machine (DVR) vs

Common Strengths and Weaknesses

STRENGTHS
  High Resolution
  High Refresh Rate: 100 Hz/120 Hz
  Slim Direct LED
  Full Array Local Dimming
  Wide Viewing Angle
  Color Depth
  HDR10
  Dolby Vision
  HLG
  Advanced HDR by Technicolor®
  Dolby Atmos
  DTS Digital Surround
  Bluetooth Audio Playback
  Wi-Fi
  Wi-Fi Direct
  Bluetooth
  Works with Alexa
WEAKNESSES
  No HDR10+
  No IMAX Enhanced
  No AMD Freesync™
  No NVidia G-Sync
  No VRR
  No NEXTGEN TV (ATSC 3.0)

Selected Features

Nano Cell Technology

Both LG models use nanocell technology on their LCD displays. This technology uses particles to absorb unwanted light wavelengths and enhance the purity of the red and green colors displayed on the screen. In addition, they create subtler, more accurate colors that stay true, even at wide viewing angles. So, even if the whole family is gathered around the TV, everyone has the best seat in the house, whether they’re front and center, or across the room and off to the side.

IPS Panels

Both TVs have in-plane switching (IPS) panels. Such panels are not commonly used in LCD TVs as they suffer from light leakage which lead to the lower contrast and poor HDR experience. However, this type of panels can provide better viewing angles and color accuracy compared to the VA panels.

Full-Array Local Dimming

The TVs have Full-Array Local Dimming technology with multiple zones throughout the displays. Individual zones of LEDs can light up independently which enhances black levels, shadow details and decreases level of light bleed in dark parts of the image. This gives higher contrast with increased picture quality which is very important for HDR reproduction. Higher number of zones gives better control over local dimming and less blooming around the bright objects and subtitles. LG 55SK9000PUA has 48 zones.

HDR10

LG 55SM9000PUA and LG 55SK9000PUA support HDR10 which was announced on August 27, 2015, by the Consumer Technology Association and uses the wide-gamut Rec. 2020 color space. It is not backward compatible with SDR. It sends static metadata via video stream to the TV which calibrates its screen brightness and color according to that. HDR10 is technically limited to a maximum of 10,000 nits of brightness and uses 10-bit color which corresponds to 1024 shades of the primary RGB colors.

Dolby Vision

LG 55SM9000PUA and LG 55SK9000PUA also support Dolby Vision which is an update to HDR10 by adding dynamic metadata that can be used to more accurately adjust brightness levels up to 10,000 nits on a scene-by-scene or frame-by-frame basis and supports up to 12-bit color depth (4096 shades of RGB) and 8K resolution.

Specifications

And in the end we display all the specifications which are present for both models.

Note: The following table shows only those details which are applicable for both models and excludes the ones that are applicable for only one model. If you want to see a full list of specs for each model please visit their individual pages here - LG 55SM9000PUA and here - LG 55SK9000PUA.

BASICS LG 55SM9000PUA LG 55SK9000PUA
BrandLGLG
SeriesSM90SK90
Model55SM9000PUA55SK9000PUA
Size55"55"
CountryCanadaCanada
Release Year20192018
Smart TV
DISPLAY LG 55SM9000PUA LG 55SK9000PUA
Display TypeNanoCellNanoCell
Actual Size (Diagonal)54.6"54.6"
Resolution4K UHD (3840 x 2160)4K UHD (3840 x 2160)
Refresh Rate100 Hz/120 Hz100 Hz/120 Hz
Screen DesignFlatFlat
Panel TypeIPSIPS
LED TypeSlim Direct LEDSlim Direct LED
Backlight DimmingFull Array Local DimmingFull Array Local Dimming
ColorNanoCell Color ProNanoCell Color Pro
Viewing AngleWide Viewing AngleWide Viewing Angle
Panel Bit Depth10 bits10 bits
Color Depth1.07 Billion1.07 Billion
Minimum Response Time5 ms5 ms
VIDEO LG 55SM9000PUA LG 55SK9000PUA
3D Capability
HDR10
HDR10+
Dolby Vision
Dolby Vision IQ
HLG
Advanced HDR by Technicolor®
IMAX Enhanced
HDR Effect
AMD Freesync™
NVidia G-Sync
4K HFR 4K HFR via HDMI will be updated
2K HFR
VRR
HGIG Compatibility
Picture Processorα7 Gen2 Intelligent Processorα7 Intelligent Processor
Upscaling4K Upscaling4K Upscaling
Frame Interploation TechniqueTruMotion 240TruMotion 240
Frame Interpolation Frequency240 Hz240 Hz
Filmmaker Mode
Auto Low Latency Mode
Depth Enhancement Object Depth Enhancer Active Depth Enhancer
AI Picture
Auto Genre Selection
Face Enhancing
Image Enhancing
Color Enhancer Advanced Color Enhancer Dynamic Color
Noise ReductionQuad Step NR NR
Deep Learning AI Picture
AI Brightness
True Color Accuracy
Ultra Luminance Pro Pro
SharpnessFrequency based Sharpness Enhancer
Dynamic Tone MappingDynamic Tone Mapping ProEnhanced Dynamic Tone Mapping
AUDIO LG 55SM9000PUA LG 55SK9000PUA
Speaker Channels2.2 Channel2.2 Channel
Speaker Power Rating40W (WF:20W)40W (WF:20W)
Dolby Atmos
DTS Digital Surround DTS-HD DTS-HD
Simultaneous Audio Output
AI Sound
Surround ModeDolby Surround / ULTRA SurroundDolby Surround / ULTRA Surround
Clear VoiceClear Voice IIIClear Voice III
Sound TuningOne Touch Sound TuningOne Touch Sound Tuning
WiSA Ready Separate Dongle Purchase Required
Bluetooth Audio Playback
LG Sound Sync
Smart Speaker Compatible
LG Smart Speaker
CONNECTIVITY LG 55SM9000PUA LG 55SK9000PUA
Ethernet Input
Wi-Fi
Wi-Fi Direct
Wi-Fi Frequency2.4 GHz, 5 GHz2.4 GHz, 5 GHz
Wi-Fi Protocol802.11a/b/g/n/ac802.11a/b/g/n/ac
Bluetooth
Bluetooth Version5.04.2
Apple Airplay Airplay 2
LG TV Plus App
Smart ThinQ App
Chromecast
Google Home Google Home device sold separately Google Home device sold separately
Virtual Assistant Google Assistant Google Assistant
Works with Alexa Built-In Amazon Alexa device sold separately
HDMI Inputs44
HDMI Version2.12.0b
HDMI Audio Return Channel (ARC) eARC (HDMI 2) HDMI 2
HDCP Version2.22.2
HDMI-CEC SIMPLINK SIMPLINK
USB Inputs33
USB 3.0 Ports
RF (Terrestrial / Cable ) Inputs11
Component Inputs
Composite Inputs1 via A/V 3.5mm Jack1 via A/V 3.5mm Jack
RCA Audio Outputs
3.5mm headphone Audio Output
Optical Audio Output
RS-232C Remote1 (Mini Jack)1 (Mini Jack)
DLNA
OTHER LG 55SM9000PUA LG 55SK9000PUA
CPU Cores44
GPU Cores22
RAM3 GB2 GB
Storage8 GB4 GB
Operating SystemwebOSwebOS
Internet Browser Full Web Browser Full Web Browser
Parental Control (V-Chip)
Application Store LG Content Store LG Content Store
Teletext
PVR Function
LG AI ThinQ®
Speech to Text
LG Voice Search
Amazon Echo Compatible
AI UX
AI Home
AI RecommendationDefault: off
Intelligent Edit
Home Dashboard
Apple HomePod
Voice Recognition Intelligent Voice Recognition Intelligent Voice Recognition
Magic LinkDefault: off
Audio Guidance (Text To Speech)
Gallery Mode
Multi-view
DIAL
Music Player
360 VR
Mobile TV On
Wi-Fi TV On
Bluetooth Low Energy On
Hotel Mode
Screen Share
Time Shift
Auto Calibration
Time Machine (DVR)
Analog DVR
VIDEO FORMATS LG 55SM9000PUA LG 55SK9000PUA
3GPP
AV1
AVI
ASF
DivX
Flash Video
H.263
H.264
H.265
MKV
M2TS
MP4
MPEG-4
QuickTime
RealVideo
TS
VC-1
VP7
VP8
VP9
VOB
VRO
WebM
WMV
Xvid
AUDIO FORMATS LG 55SM9000PUA LG 55SK9000PUA
AAC
AC4
AIFF
ALAC
APE
aptX
eAAC+
EAC3
FLAC
HE-AAC
LPCM
M4A
MIDI
MP2
MP3
OGG
RealAudio
WMA
WAV
IMAGE FORMATS LG 55SM9000PUA LG 55SK9000PUA
BMP
GIF
JPEG
JPS
MPO
PNG
TUNER LG 55SM9000PUA LG 55SK9000PUA
Digital Tuner 1 1
SAT Tuner
Analog TunerNTSC-MNTSC-M
NEXTGEN TV (ATSC 3.0)
Digital Terrestrial TV SystemATSCATSC
Digital Cable TV SystemClear QAMClear QAM
Color systemPAL / SECAM / NTSCPAL / SECAM / NTSC
GENERAL LG 55SM9000PUA LG 55SK9000PUA
Power SupplyAC 120 V, 50/60 HzAC 100-240 V, 50/60 Hz
Power Consumption (In Standby)0.5 W0.5 W
Dimension Without Stand (W x H x D)48.5" x 27.9" x 2.5"48.5" x 27.9" x 2.5"
Dimension With Stand (W x H x D)48.5" x 30.7" x 10.4"48.5" x 30.6" x 9.8"
Dimension of Package (W x H x D)53.5" x 33.9" x 6.9"53.5" x 33.9" x 6.9"
One Connect Box
VESA Wall Mount
VESA Hole Pitch (W x H)300 mm x 300 mm300 mm x 300 mm
Weight Without Stand38.8 lbs37.9 lbs
Weight With Stand42.1 lbs41.2 lbs
Weight of Package (Gross)50 lbs51.1 lbs
Warranty1 Year Parts & Labor1 Year Parts & Labor
ACCESSORIES LG 55SM9000PUA LG 55SK9000PUA
RemoteMagic Remote Control - AN-MR19Magic Remote Control - AN-MR18BA.US
Universal Control Capability for remote
Magic Remote Control Compatible

Amazon Affiliate Disclosure

ZKelectronics is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for website owners to earn advertising fees by advertising and linking to Amazon (.com, .co.uk, .ca, etc) and any other websites that may be affiliated with Amazon Service LLC Associates Program.