1-on-1 Comparison

Side-by-Side Comparison

LG OLED77Z19LA

LG OLED55A1PUA

SCORE:
97
SCORE:
93

Highlights

  • 8K UHD (7680 x 4320) OLED Display
  • HDR10, Dolby Vision, HLG support
  • Perfect Colour (Wide Color Gamut)
  • Perfect Viewing Angle
  • α9 Gen4 AI Processor 4K
  • Ethernet, Wi-Fi, Bluetooth

Highlights

  • 4K UHD (3840 x 2160) OLED Display
  • HDR10, Dolby Vision, HLG support
  • Perfect Colour (Wide Color Gamut)
  • Perfect Viewing Angle
  • α7 Gen4 Processor 4K
  • 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 OLED77Z19LA to LG OLED55A1PUA 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. The LG OLED77Z19LA has 8K UHD (7680 x 4320) and the LG OLED55A1PUA has 4K UHD (3840 x 2160) resolution and they both support HDR.

We have evaluated the TVs from available features and specifications. LG OLED77Z19LA 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 OLED77Z19LA

LG OLED55A1PUA

DISPLAY
98
VIDEO FEATURES
96
AUDIO FEATURES
97
OTHER FEATURES
100
CONNECTIVITY
94
FORMAT SUPPORT
88
OVERALL
97
DISPLAY
92
VIDEO FEATURES
95
AUDIO FEATURES
90
OTHER FEATURES
98
CONNECTIVITY
93
FORMAT SUPPORT
88
OVERALL
93

Advantage of LG OLED77Z19LA

This section shows the features and specifications which are the reason to choose LG OLED77Z19LA over LG OLED55A1PUA.

LG OLED77Z19LA vs LG OLED55A1PUA
Higher Resolution 8K UHD (7680 x 4320) vs 4K UHD (3840 x 2160)
Higher Refresh Rate 100 Hz/120 Hz vs 50 Hz/60 Hz
AMD Freesync™ vs
NVidia G-Sync vs
4K HFR vs
2K HFR vs
VRR vs
More Powerful Picture Processor α9 Gen4 AI Processor 4K vs α7 Gen4 Processor 4K
Black Frame Insertion OLED Motion vs
AI Picture AI Picture Pro 8K vs AI Picture
Auto Genre Selection SDR/HDR/Dolby HDR vs Dolby HDR only
Face Enhancing AI Picture Pro - Face + Body+ object Enhancing vs AI Picture - Face Enhancing
Noise Reduction Quad Step Noise Reduction vs Dual Step Noise Reduction
True Color Accuracy Pro vs
Dynamic Tone Mapping HDR Dynamic Tone Mapping Pro vs
More Speaker Channels 4.2 Channel vs 2.0 Channel
Higher Speaker Poer Rating 60W (WF:20W, 10W per Channel) vs 10W x 2
AI Sound AI Sound Pro vs
More HDMI Inputs 4 vs 3
HDMI Version 2.1 vs 2.0
HDCP Version 2.3 vs 2.2
More USB Inputs 3 vs 2
More RF (Terrestrial/Cable) Connection Inputs 3 vs 1
Teletext Flof vs
More Tuners (Terrestrial/Cable) 2 vs 1
More Tuners (SAT) vs

Advantage of LG OLED55A1PUA

This section shows the features and specifications which are the reason to choose LG OLED55A1PUA over LG OLED77Z19LA.

LG OLED77Z19LA vs LG OLED55A1PUA
RS-232C Remote vs 1 (Mini Jack)

Common Strengths and Weaknesses

STRENGTHS
  High Resolution
  Pixel Level Dimming
  Perfect Viewing Angle
  Color Depth
  HDR10
  Dolby Vision
  Dolby Vision IQ
  HLG
  HGIG Compatibility
  α9 Gen4 AI Processor 4K
  Filmmaker Mode
  Dolby Atmos
  AI Sound
  WiSA Ready
  Bluetooth Audio Playback
  Wi-Fi
  Wi-Fi Direct
  Bluetooth
  Works with Alexa
WEAKNESSES
  No HDR10+
  No IMAX Enhanced
  No DTS Digital Surround

Selected Features

OLED displays

LG OLED77Z19LA and LG OLED55A1PUA have organic light-emitting diode (OLED) displays. 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.

HDR10

LG OLED77Z19LA and LG OLED55A1PUA 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 OLED77Z19LA and LG OLED55A1PUA 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 OLED77Z19LA and here - LG OLED55A1PUA.

BASICS LG OLED77Z19LA LG OLED55A1PUA
BrandLGLG
SeriesZ1 SignatureA1
ModelOLED77Z19LAOLED55A1PUA
Size77"55"
CountryUKUSA
Release Year20212021
Bezel ColorBlackBlack
Smart TV
DISPLAY LG OLED77Z19LA LG OLED55A1PUA
Display TypeOLEDOLED
Actual Size (Diagonal)76.7"54.6"
Resolution8K UHD (7680 x 4320)4K UHD (3840 x 2160)
Refresh Rate100 Hz/120 Hz50 Hz/60 Hz
Screen DesignFlatFlat
Backlight DimmingPixel Level DimmingPixel Level Dimming
Backlight NameSelf-lit pixels (no backlight)Self-lit pixels (no backlight)
ContrastInfinite ContrastInfinite Contrast
ColorPerfect Colour (Wide Color Gamut)Perfect Colour (Wide Color Gamut)
Viewing AnglePerfect Viewing AnglePerfect Viewing Angle
Panel Bit Depth10 bits10 bits
Color Depth1.07 Billion1.07 Billion
Contrast Ratio
Minimum Response Time1 ms1 ms
VIDEO LG OLED77Z19LA LG OLED55A1PUA
3D Capability
HDR10
HDR10+
Dolby Vision
Dolby Vision IQ
HLG
Advanced HDR by Technicolor®
IMAX Enhanced
4K HDRCinema HDRCinema HDR
AMD Freesync™
NVidia G-Sync
4K HFR
2K HFR
VRR
HGIG Compatibility
Picture Processorα9 Gen4 AI Processor 4Kα7 Gen4 Processor 4K
UpscalingAI 8K UpscalingAI 4K Upscaling
BlacksPerfect BlackPerfect Black
Black Frame Insertion OLED Motion
Filmmaker Mode
Auto Low Latency Mode
AI Picture AI Picture Pro 8K AI Picture
Auto Genre Selection SDR/HDR/Dolby HDR Dolby HDR only
Face EnhancingAI Picture Pro - Face + Body+ object EnhancingAI Picture - Face Enhancing
Image Enhancing Image Enhancing on SQM
Color Enhancer Advanced Color Enhancer Advanced Color Enhancer
Noise ReductionQuad Step Noise ReductionDual Step Noise Reduction
AI Brightness
True Color Accuracy Pro
Ultra Luminance Pro Pro
SharpnessFrequency based Sharpness EnhancerSharpness Enhancer
Dynamic Tone MappingHDR Dynamic Tone Mapping Pro
AUDIO LG OLED77Z19LA LG OLED55A1PUA
Speaker Channels4.2 Channel2.0 Channel
Speaker TypeDown FiringDown Firing
Speaker Poer Rating60W (WF:20W, 10W per Channel)10W x 2
Dolby Atmos
Dolby Digital
Dolby Digital Plus
DTS Digital Surround
AI Sound AI Sound Pro
Surround ModeOLED SurroundOLED Surround
Clear VoiceClear Voice ProClear Voice Pro
WiSA Ready Up to 5.1 Channel (Separate Dongle Purchase Required) Up to 2.1 Channel (Separate Dongle Purchase Required)
Bluetooth Audio Playback
LG Sound Sync
CONNECTIVITY LG OLED77Z19LA LG OLED55A1PUA
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 Version5.05.0
Mobile Connectivity
Apple Airplay Airplay 2 Airplay 2
LG TV Plus App
Smart ThinQ App
Chromecast
Google Home Google Home device sold separately
Virtual Assistant Google Assistant Google Assistant
Works with Alexa Alexa Built-In Alexa Built-In
HDMI Inputs43
HDMI Version2.12.0
HDMI Audio Return Channel (ARC) eARC (HDMI 2) eARC (HDMI 3)
HDCP Version2.32.2
HDMI-CEC SIMPLINK SIMPLINK
USB Inputs32
USB 3.0 Ports
RF (Terrestrial / Cable ) Inputs31
Component Inputs
Composite Inputs
RCA Audio Outputs
3.5mm headphone Audio Output
Optical Audio Output
RS-232C Remote1 (Mini Jack)
DLNA
OTHER LG OLED77Z19LA LG OLED55A1PUA
CPU Cores44
Operating SystemwebOSwebOS
Internet Browser Full Web Browser Full Web Browser
Application Store LG Content Store LG Content Store
Teletext Flof
LG AI ThinQ®
Speech to Text
LG Voice Search
Amazon Echo Compatible
AI UX
AI Home
AI RecommendationDefault: offDefault: off
Intelligent Edit
Home Dashboard
Auto Device Detection
Apple HomePod
Voice Recognition Intelligent Voice Recognition Intelligent Voice Recognition
Magic LinkDefault: offDefault: off
Audio Guidance (Text To Speech)
Gallery Mode
DIAL
Mobile TV On
Wi-Fi TV On
Bluetooth Low Energy On
Instant Game Response VRR/ALLM/HGIG ALLM/HGIG
Screen Share
Time Shift
Auto Calibration
Time Machine (DVR)
HEVC 8K@60p, 10bit and 4K@120p, 10bit 4K@60p
VIDEO FORMATS LG OLED77Z19LA LG OLED55A1PUA
3GPP
AV1 8K@60p, 10bit 4K@60p, 10bit
AVI
ASF
DivX
Flash Video
H.263
H.264
H.265
MKV
M2TS
MP4
MPEG-4
QuickTime
RealVideo
TS
VC-1
VP7
VP8
VP9 8K@60p, 10bit 4K@60p, 10bit
VOB
VRO
WebM
WMV
Xvid
AUDIO FORMATS LG OLED77Z19LA LG OLED55A1PUA
AAC
AC4
AIFF
ALAC
APE
aptX
eAAC+
EAC3
FLAC
HE-AAC
LPCM
M4A
MIDI
MP2
MP3
OGG
RealAudio
WMA
WAV
IMAGE FORMATS LG OLED77Z19LA LG OLED55A1PUA
BMP
GIF
JPEG
JPS
MPO
PNG
TUNER LG OLED77Z19LA LG OLED55A1PUA
Digital Tuner 2 1
SAT Tuner
Analog TunerPAL/SECAM, B/G, D/K, I, SECAM LNTSC-M
Digital Terrestrial TV SystemDVB-T/T2ATSC
Digital Cable TV SystemDVB-CClear QAM
Color systemPAL / SECAM / NTSCPAL / SECAM / NTSC
GENERAL LG OLED77Z19LA LG OLED55A1PUA
Power SupplyAC 100-240 V, 50/60 HzAC 120 V, 50/60 Hz
Power Consumption (In Standby)0.5 W0.5 W
Dimension Without Stand (W x H x D)1717 x 984 x 32.2 mm1228 x 706 x 46.9 mm
48.3" x 27.8" x 1.8"
Dimension With Stand (W x H x D)1717 x 1044 x 323 mm1228 x 767 x 271 mm
48.3" x 30.2" x 10.7"
Stand Size1531 x 323 mm / 60.28" x 12.72"1124 x 271 mm / 44.3"
Dimension of Package (W x H x D)1895 x 1130 x 228 mm
74.61" x 44.49" x 8.98"
1360 x 810 x 172 mm
55.9" x 32.9" x 6.8"
VESA Wall Mount
VESA Hole Pitch (W x H)400 mm x 400 mm300 mm x 200 mm
Weight Without Stand42.6 kg / 93.92 lbs18.4 kg / 40.6 Ibs
Weight With Stand43.4 kg / 95.68 lbs18.7 / 41.2 Ibs
Weight of Package (Gross)56.4 kg / 124.34 lbs23.7 kg / 55.1 Ibs
ACCESSORIES LG OLED77Z19LA LG OLED55A1PUA
RemoteSignature Magic Remote Control - PM21NMagic Remote Control - MR21
Universal Control Capability for remote
Magic Remote Control Compatible

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