•   Overview
•   Advantage of LG 65SK9000PUA
•   Advantage of LG 55UK7550PLA
•   Common Strengths and Weaknesses
•   Selected Features
•   Specifications

Here we are comparing LG 65SK9000PUA to LG 55UK7550PLA 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 65SK9000PUA gets higher overall score in our ranking system which is based on the display specifications, video, audio and other features, connectivity and format support.

This section shows the features and specifications which are the reason to choose LG 65SK9000PUA over LG 55UK7550PLA.

	LG 65SK9000PUA	vs	LG 55UK7550PLA
Higher Refresh Rate	100 Hz/120 Hz	vs	50 Hz/60 Hz
LED Type	Slim Direct LED	vs	Edge LED
Backlight Dimming	Full Array Local Dimming	vs	Local Dimming
Color	NanoCell Color Pro	vs	Wide Color Gamut
Higher Panel Bit Depth	10 bits	vs	8 bits + FRC
Higher DCI P3 Color Space Coverage	95%	vs	90%
Higher Contrast Ratio	1600∶1	vs	1400∶1
Lower Minimum Response Time	5 ms	vs	8 ms
Dolby Vision		vs
Advanced HDR by Technicolor®		vs
Technicolor Expert Mode		vs
More Powerful Picture Processor	α7 Intelligent Processor	vs	Quad Core Processor
Higher Frame Interpolation Frequency	240 Hz	vs	100 Hz
Depth Enhancement	Active Depth Enhancer	vs
Professional Game TV		vs
Enhanced Motion Picture Response Time		vs
Ultra Luminance	Pro	vs
More Speaker Channels	2.2 Channel	vs	2.0 Channel
Higher Speaker Power Rating	40W (WF:20W)	vs	20 W
Adaptive Sound Control		vs
More USB Inputs	3	vs	2
RS-232C Remote	1 (Mini Jack)	vs
More RAM	2 GB	vs	1.5 GB
Gallery Mode		vs
Multi-view		vs
Channel Plus		vs
Screen Share		vs
Auto Calibration		vs

This section shows the features and specifications which are the reason to choose LG 55UK7550PLA over LG 65SK9000PUA.

	LG 65SK9000PUA	vs	LG 55UK7550PLA
More RF (Terrestrial/Cable) Connection Inputs	1	vs	2
Component Inputs		vs	1 via A/V 3.5mm Jack
More Tuners (SAT)		vs

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 on LG 65SK9000PUA

LG 65SK9000PUA has Full-Array Local Dimming technology with multiple zones throughout the display. 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 65SK9000PUA has 48 zones.

HDR10

LG 65SK9000PUA and LG 55UK7550PLA 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 on LG 65SK9000PUA

LG 65SK9000PUA also supports 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.

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 65SK9000PUA and here - LG 55UK7550PLA.

BASICS	LG 65SK9000PUA	LG 55UK7550PLA
Brand	LG	LG
Series	SK90	UK75
Model	65SK9000PUA	55UK7550PLA
Size	65"	55"
Country	USA	UK
Release Year	2018	2018
Smart TV

DISPLAY	LG 65SK9000PUA	LG 55UK7550PLA
Display Type	NanoCell	NanoCell
Actual Size (Diagonal)	64.5"	54.6"
Resolution	4K UHD (3840 x 2160)	4K UHD (3840 x 2160)
Refresh Rate	100 Hz/120 Hz	50 Hz/60 Hz
Screen Design	Flat	Flat
Panel Type	IPS	IPS
LED Type	Slim Direct LED	Edge LED
Backlight Dimming	Full Array Local Dimming	Local Dimming
Color	NanoCell Color Pro	Wide Color Gamut
Viewing Angle	Wide Viewing Angle	Wide Viewing Angle
Panel Bit Depth	10 bits	8 bits + FRC
Color Depth	1.07 Billion	1.07 Billion
DCI P3 Color Space Coverage	95%	90%
Contrast Ratio	1600∶1	1400∶1
Minimum Response Time	5 ms	8 ms

VIDEO	LG 65SK9000PUA	LG 55UK7550PLA
3D Capability
HDR10
HDR10+
Dolby Vision
HLG
Advanced HDR by Technicolor®
IMAX Enhanced
HDR Effect
Technicolor Expert Mode
AMD Freesync™
NVidia G-Sync
4K HFR
2K HFR
VRR
HGIG Compatibility
Picture Processor	α7 Intelligent Processor	Quad Core Processor
Upscaling	4K Upscaling	4K Upscaling
Frame Interploation Technique	TruMotion 240	TruMotion 100
Frame Interpolation Frequency	240 Hz	100 Hz
Filmmaker Mode
Auto Low Latency Mode
Depth Enhancement	Active Depth Enhancer
AI Picture
Auto Genre Selection
Face Enhancing
Image Enhancing
Color Enhancer	Dynamic Color	Dynamic Color
Noise Reduction	NR	NR
Deep Learning AI Picture
AI Brightness
Professional Game TV
Enhanced Motion Picture Response Time
True Color Accuracy
Ultra Luminance	Pro
Sharpness
Dynamic Tone Mapping	Enhanced Dynamic Tone Mapping	Dynamic Tone Mapping

AUDIO	LG 65SK9000PUA	LG 55UK7550PLA
Speaker Channels	2.2 Channel	2.0 Channel
Speaker Type	Down Firing	Down Firing
Speaker Power Rating	40W (WF:20W)	20 W
Dolby Atmos
DTS Digital Surround	DTS-HD	DTS-HD
Simultaneous Audio Output
AI Sound
Surround Mode	Dolby Surround / ULTRA Surround	DTS Virtual:X
Clear Voice	Clear Voice III	Clear Voice III
Sound Tuning	One Touch Sound Tuning	One Touch Sound Tuning
Adaptive Sound Control
WiSA Ready
Bluetooth Audio Playback
LG Sound Sync
Smart Speaker Compatible
LG Smart Speaker

CONNECTIVITY	LG 65SK9000PUA	LG 55UK7550PLA
Ethernet Input
Wi-Fi
Wi-Fi Direct
Wi-Fi Frequency	2.4 GHz, 5 GHz	2.4 GHz, 5 GHz
Wi-Fi Protocol	802.11a/b/g/n/ac	802.11a/b/g/n/ac
Bluetooth
Bluetooth Version	4.2	4.2
Apple Airplay
LG TV Plus App
Smart ThinQ App
Chromecast
Google Home	Google Home device sold separately	Google Home device sold separately (This feature is not available in Republic of Ireland)
Virtual Assistant	Google Assistant	Google Assistant Built-in Google Assistant features require software update (This feature is not available in Republic of Ireland)
Works with Alexa	Amazon Alexa device sold separately	Amazon Alexa device sold separately (This feature is not available in Republic of Ireland)
HDMI Inputs	4	4
HDMI Version	2.0b	2.0b
HDMI Audio Return Channel (ARC)	HDMI 2	HDMI 2
HDCP Version	2.2	2.2
HDMI-CEC	SIMPLINK	SIMPLINK
USB Inputs	3	2
USB 3.0 Ports
RF (Terrestrial / Cable ) Inputs	1	2
Component Inputs		1 via A/V 3.5mm Jack
Composite Inputs	1 via A/V 3.5mm Jack	1 via A/V 3.5mm Jack
RCA Audio Outputs
3.5mm headphone Audio Output
Optical Audio Output
RS-232C Remote	1 (Mini Jack)
DLNA

OTHER	LG 65SK9000PUA	LG 55UK7550PLA
CPU Cores	4	4
GPU Cores	2	2
RAM	2 GB	1.5 GB
Storage	4 GB	4 GB
Operating System	webOS	webOS
Internet Browser	Full Web Browser
Parental Control (V-Chip)
Application Store	LG Content Store	LG Content Store
PVR Function
LG AI ThinQ®
Speech to Text
LG Voice Search
Amazon Echo Compatible
AI UX
AI Home
AI Recommendation
Intelligent Edit
Home Dashboard
Apple HomePod
Voice Recognition	Intelligent Voice Recognition	Intelligent Voice Recognition
Magic Link
Focus Zoom
Live Zoom
Audio Guidance (Text To Speech)
Gallery Mode
Multi-view
Freeview Play
DIAL
Music Player
360 VR
Mobile TV On
Wi-Fi TV On
Bluetooth Low Energy On
Instant Game Response
Live Plus (ACR-based Bilateral Service)
Hotel Mode
My Content
My Channels
Channel Advisor
Channel Plus
Screen Share
Time Shift
Auto Calibration
Time Machine (DVR)
Analog DVR

VIDEO FORMATS	LG 65SK9000PUA	LG 55UK7550PLA
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 65SK9000PUA	LG 55UK7550PLA
AAC
AC4
AIFF
ALAC
APE
aptX
eAAC+
EAC3
FLAC
HE-AAC
LPCM
M4A
MIDI
MP2
MP3
OGG
RealAudio
WMA
WAV

IMAGE FORMATS	LG 65SK9000PUA	LG 55UK7550PLA
BMP
GIF
JPEG
JPS
MPO
PNG

TUNER	LG 65SK9000PUA	LG 55UK7550PLA
Digital Tuner	1	1
SAT Tuner
Analog Tuner	NTSC-M	PAL/SECAM, B/G, D/K, I, SECAM L
Digital Terrestrial TV System	ATSC	DVB-T/T2
Digital Cable TV System	Clear QAM	DVB-C
Color system	PAL / SECAM / NTSC	PAL / SECAM / NTSC

GENERAL	LG 65SK9000PUA	LG 55UK7550PLA
Power Supply	AC 120 V, 50/60 Hz	AC 100-240 V, 50/60 Hz
Power Consumption (In Standby)	0.5 W	0.5 W
Dimension Without Stand (W x H x D)	57.3" x 32.7" x 2.5"	1237 mm x 721 mm x 64 mm
Dimension With Stand (W x H x D)	57.3" x 35.6" x 12.5"	1237 mm x 794 mm x 248 mm
Dimension of Package (W x H x D)	63.0" x 38.2" x 7.5"	1360 mm x 880 mm x 175 mm
One Connect Box
VESA Wall Mount
VESA Hole Pitch (W x H)	300 mm x 300 mm	300 mm x 300 mm
Weight Without Stand	58.6 lbs	16.1 kg
Weight With Stand	61.9 lbs	17.6 kg
Weight of Package (Gross)	78.3 lbs	22.8 kg
Warranty	1 Year Parts & Labor	1 Year Parts & Labor

ACCESSORIES	LG 65SK9000PUA	LG 55UK7550PLA
Remote	Magic Remote Control - AN-MR18BA.US	Magic Remote Control - AN-MR18
Universal Control Capability for remote
Magic Remote Control Compatible