•   Overview
•   Advantage of LG OLED55B9PLA
•   Advantage of LG 55SM9800PLA
•   Common Strengths and Weaknesses
•   Selected Features
•   Specifications

Here we are comparing LG OLED55B9PLA to LG 55SM9800PLA 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. They both get the same 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 OLED55B9PLA over LG 55SM9800PLA.

	LG OLED55B9PLA	vs	LG 55SM9800PLA
Backlight Dimming	Pixel Dimming/Self Lighting Pixel	vs	Full Array Local Dimming
Color	Perfect Color	vs	NanoCell Color Pro
True Color Accuracy	Pro	vs
Analog DVR		vs

This section shows the features and specifications which are the reason to choose LG 55SM9800PLA over LG OLED55B9PLA.

	LG OLED55B9PLA	vs	LG 55SM9800PLA
More RF (Terrestrial/Cable) Connection Inputs	2	vs	3
Composite Inputs		vs	1 via A/V 3.5mm Jack
More Tuners (Terrestrial/Cable)	1	vs	2

OLED display on LG OLED55B9PLA

LG OLED55B9PLA has an organic light-emitting diode (OLED) display. This is a self-emissive display which can completely turn off individual pixels leading to the ideal black levels and better contrast during HDR compared to any LCD displays. This makes them to be the best choice for dark rooms. OLED enables a simpler internal structure than conventional displays. With just a few layers, OLED TVs are very lightweight and thin. OLED displays also have better viewing angles. However, they are not able to achieve such high brightness as modern LCD displays which makes them less suitable in bright rooms.

IPS Panel on LG 55SM9800PLA

LG 55SM9800PLA has an in-plane switching (IPS) panel. 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 55SM9800PLA

LG 55SM9800PLA 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.

HDR10

LG OLED55B9PLA and LG 55SM9800PLA 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 OLED55B9PLA and LG 55SM9800PLA 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.

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 OLED55B9PLA and here - LG 55SM9800PLA.

BASICS	LG OLED55B9PLA	LG 55SM9800PLA
Brand	LG	LG
Series	B9	SM98
Model	OLED55B9PLA	55SM9800PLA
Size	55"	55"
Country	UK	UK
Release Year	2019	2019
Smart TV

DISPLAY	LG OLED55B9PLA	LG 55SM9800PLA
Display Type	OLED	NanoCell
Actual Size (Diagonal)	54.6"	54.6"
Resolution	4K UHD (3840 x 2160)	4K UHD (3840 x 2160)
Refresh Rate	100 Hz/120 Hz	100 Hz/120 Hz
Screen Design	Flat	Flat
Panel Type	WRGB	IPS
Backlight Dimming	Pixel Dimming/Self Lighting Pixel	Full Array Local Dimming
Color	Perfect Color	NanoCell Color Pro
Viewing Angle	Perfect Viewing Angle	Wide Viewing Angle
Panel Bit Depth	10 bits	10 bits
Color Depth	1.07 Billion	1.07 Billion

VIDEO	LG OLED55B9PLA	LG 55SM9800PLA
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	4K HFR via HDMI will be updated
2K HFR
VRR
HGIG Compatibility
Picture Processor	α7 Gen2 Intelligent Processor	α7 Gen2 Intelligent Processor
Upscaling	4K Upscaling	4K Upscaling
Filmmaker Mode
Auto Low Latency Mode
Depth Enhancement	Object Depth Enhancer	Object Depth Enhancer
AI Picture
Auto Genre Selection
Face Enhancing
Image Enhancing
Color Enhancer	Advanced Color Enhancer	Advanced Color Enhancer
Noise Reduction	Quad Step NR	Quad Step NR
Deep Learning AI Picture
AI Brightness
True Color Accuracy	Pro
Ultra Luminance	Pro	Pro
Sharpness	Frequency based Sharpness Enhancer	Frequency based Sharpness Enhancer
Dynamic Tone Mapping	Dynamic Tone Mapping Pro	Dynamic Tone Mapping Pro

AUDIO	LG OLED55B9PLA	LG 55SM9800PLA
Speaker Channels	2.2 Channel	2.2 Channel
Speaker Power Rating	40W (WF:20W, 10W per Channel)	40W (WF:20W)
Dolby Atmos
DTS Digital Surround	DTS-HD	DTS-HD
Simultaneous Audio Output
AI Sound
Surround Mode	Dolby Surround / OLED Surround	Dolby Surround / ULTRA Surround
Clear Voice	Clear Voice III	Clear Voice III
Sound Tuning	One Touch Sound Tuning	One Touch Sound Tuning
WiSA Ready
Bluetooth Audio Playback
LG Sound Sync
Smart Speaker Compatible
LG Smart Speaker

CONNECTIVITY	LG OLED55B9PLA	LG 55SM9800PLA
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	5.0	5.0
Mobile Connectivity
Apple Airplay	Airplay 2	Airplay 2
LG TV Plus App
Smart ThinQ App
Chromecast
Google Home
Virtual Assistant	Google Assistant	Google Assistant
Works with Alexa	19.5 MR	19.5 MR
HDMI Inputs	4	4
HDMI Version	2.1	2.1
HDMI Audio Return Channel (ARC)	eARC (HDMI 2)	eARC (HDMI 2)
HDCP Version	2.2	2.2
HDMI-CEC	SIMPLINK	SIMPLINK
USB Inputs	3	3
USB 3.0 Ports
RF (Terrestrial / Cable ) Inputs	2	3
Component Inputs
Composite Inputs		1 via A/V 3.5mm Jack
RCA Audio Outputs
3.5mm headphone Audio Output
Optical Audio Output
RS-232C Remote
DLNA

OTHER	LG OLED55B9PLA	LG 55SM9800PLA
CPU Cores	4	4
GPU Cores	2	2
RAM	3 GB	3 GB
Storage	8 GB	8 GB
Operating System	webOS	webOS
Internet Browser
Electronic Program Guide (EPG)	8 days	8 days
Parental Control (V-Chip)
Application Store	LG Content Store	LG Content Store
Teletext	Flof	Flof
Teletext Page	2000 page	2000 page
Closed Captions	Subtitle	Subtitle
PVR Function
On-Screen Display Languages	36	36
LG AI ThinQ®
Speech to Text
LG Voice Search
Amazon Echo Compatible
AI UX
AI Home
AI Recommendation	Default: off	Default: off
Intelligent Edit
Home Dashboard
Auto Device Detection
Apple HomePod
Voice Recognition	Intelligent Voice Recognition	Intelligent Voice Recognition
Magic Link	Default: off	Default: 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
Instant Game Response	VRR/ALLM	ALLM
Live Plus (ACR-based Bilateral Service)	with Samba TV App	with Samba TV App
Hotel Mode
Screen Share
Digital Recording
Time Shift
Watch & Record
Auto Calibration
Time Machine (DVR)
Analog DVR
HEVC

VIDEO FORMATS	LG OLED55B9PLA	LG 55SM9800PLA
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 OLED55B9PLA	LG 55SM9800PLA
AAC
AC4
AIFF
ALAC
APE
aptX
eAAC+
EAC3
FLAC
HE-AAC
LPCM
M4A
MIDI
MP2
MP3
OGG
RealAudio
WMA
WAV

IMAGE FORMATS	LG OLED55B9PLA	LG 55SM9800PLA
BMP
GIF
JPEG
JPS
MPO
PNG

TUNER	LG OLED55B9PLA	LG 55SM9800PLA
Digital Tuner	1	2
SAT Tuner
Analog Tuner	PAL/SECAM, B/G, D/K, I, SECAM L	PAL/SECAM, B/G, D/K, I, SECAM L
Digital Terrestrial TV System	DVB-T/T2	DVB-T/T2
Digital Cable TV System	DVB-C	DVB-C
Digital SAT TV System	DVB-S/S2	DVB-S/S2
Color system	PAL / SECAM / NTSC	PAL / SECAM / NTSC
CI+	CI+ 1.4	CI+ 1.4

GENERAL	LG OLED55B9PLA	LG 55SM9800PLA
Energy Efficiency	A	A
Power Supply	AC 100-240 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)	1228 mm x 706 mm x 46.9 mm	1229 mm x 708 mm x 62.5 mm
Dimension With Stand (W x H x D)	1228 mm x 744 mm x 246 mm	1229 mm x 779 mm x 315 mm
One Connect Box
VESA Wall Mount
VESA Hole Pitch (W x H)	300 mm x 200 mm	300 mm x 300 mm
Weight Without Stand	18.9 kg	17.8 kg
Weight With Stand	19.9 kg	19.6 kg

ACCESSORIES	LG OLED55B9PLA	LG 55SM9800PLA
Remote	Magic Remote Control - AN-MR19	Magic Remote Control - AN-MR19
Universal Control Capability for remote
Magic Remote Control Compatible