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Product comparison · 2 tvs

LG 55 inch LG QNED AI QNED70 4K Smart TV 2025 vs LG OLED evo AI OLED77C51LA TV

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  • 78specifications compared
  • 39differ
  • 39identical
  • 51known for one product only

Key differences

The LG OLED evo AI OLED77C51LA TV has 60 Hz more native refresh rate than the LG 55 inch LG QNED AI QNED70 4K Smart TV 2025 (120 Hz vs 60 Hz). The LG OLED evo AI OLED77C51LA TV has 56 cm more display diagonal (metric) than the LG 55 inch LG QNED AI QNED70 4K Smart TV 2025 (195 cm vs 139 cm). The LG OLED evo AI OLED77C51LA TV has 0.2 channels more audio output channels than the LG 55 inch LG QNED AI QNED70 4K Smart TV 2025 (2.2 channels vs 2.0 channels). Only the LG OLED evo AI OLED77C51LA TV has USB recording. Display diagonal: 139.7 cm (55") on the LG 55 inch LG QNED AI QNED70 4K Smart TV 2025, 195.6 cm (77") on the LG OLED evo AI OLED77C51LA TV.

  • Display diagonal
    • 139.7 cm (55")
    • 195.6 cm (77")
  • Display technology
    • QNED
    • OLED evo
  • Native refresh rate
    • 60 Hz
    • 120 Hz
  • Display diagonal (metric)
    • 139 cm
    • 195 cm
  • Audio output channels
    • 2.0 channels
    • 2.2 channels
  • RMS rated power
    • 20 W
    • 40 W
  • Audio decoders
    • Dolby Digital
    • Dolby Atmos, Dolby Digital
  • Bluetooth version
    • 5.0
    • 5.3

Side by side

Differences highlightedShow differences only
129 specifications
A

LG

55 inch LG QNED AI QNED70 4K Smart TV 2025View product
B

LG

OLED evo AI OLED77C51LA TV

Model OLED77C51LA

View product
Display4 differ
Display diagonalDiffers139.7 cm (55")195.6 cm (77")
Display technologyDiffersQNEDOLED evo
LED backlighting typeKnown for oneDirect-LED
Native refresh rateDiffers60 Hz120 Hz
Display diagonal (metric)Differs139 cm195 cm
Automatic brightness controlKnown for oneYes
Response timeKnown for one0.1 ms
Motion interpolation technologyKnown for oneOLED Motion
Display refresh rates supportedKnown for one144 Hz
TV tuneridentical
Number of tunersKnown for one1 tuner(s)
Auto channel searchKnown for oneYes
Smart TVidentical
Built-in ChromecastKnown for oneYes
Audio4 differ
Number of speakersKnown for one2
Audio output channelsDiffers2.0 channels2.2 channels
RMS rated powerDiffers20 W40 W
Built-in subwooferKnown for oneNo
Audio decodersDiffersDolby DigitalDolby Atmos, Dolby Digital
Sound modesDiffersAI Sound Pro, Clear Voice ProAI Acoustic Tuning, AI Sound Pro, Clear Voice Pro
Network2 differ
Wi-Fi standardsDiffersWi-Fi 5 (802.11ac)802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax)
Bluetooth versionDiffers5.05.3
Bluetooth profilesKnown for oneA2DP
Design2 differ
Panel mounting interfaceDiffers300 x 300 mm300 x 200 mm
Frameless designKnown for oneYes
Stand typeDiffersLegs standCenter stand
Performance4 differ
High Dynamic Range (HDR) technologyDiffersFilmmaker Mode, High Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG)Dolby Vision, Dynamic Tone Mapping PRO, Filmmaker Mode, High Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG)
Teletext functionKnown for oneYes
Subtitles functionKnown for oneYes
Video formats supportedKnown for oneAV1, HEVC/H.265, VP9
Picture processorDiffersα7 Gen8 AI Processor 4Kα9 Gen 8 AI Processor 4K
Processor coresKnown for one4
Game featuresDiffersAuto Low Latency Mode (ALLM), Game Optimizer, HGiG, Variable Refresh Rate (VRR)4K HFR (High Frame Rate), Auto Low Latency Mode (ALLM), Game Dashboard, HGiG, Variable Refresh Rate (VRR)
USB recordingDiffersNoYes
DVD playerKnown for oneNo
Audio formats supportedKnown for oneAAC, AC3, AC4, EAC3, HE-AAC, MP2, MP3, PCM, WMA, apt-X
AI UpscaleKnown for oneYes
Backlight dimming technologyKnown for onePixel Dimming
Picture processing technologyKnown for oneLG AI Picture Pro
AMD FreeSyncKnown for oneYes
AMD FreeSync typeKnown for oneFreeSync Premium
NVIDIA G-SYNCKnown for oneYes
NVIDIA G-SYNC typeKnown for oneG-SYNC
Ports & interfaces2 differ
HDMI ports quantityDiffers34
HDMI versionKnown for one2.1
Audio Return Channel (ARC)Known for oneYes
USB 2.0 ports quantityDiffers13
USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantityKnown for one0
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantityKnown for one0
USB 3.2 Gen 2 (3.1 Gen 2) Type-A ports quantityKnown for one0
USB 3.2 Gen 2 (3.1 Gen 2) Type-C ports quantityKnown for one0
Headphone outputsKnown for one0
Common interface Plus (CI+)Known for oneYes
Common interface Plus (CI+) versionKnown for one1.4
RF connector typeKnown for oneF, IEC
Management featuresidentical
Voice guideKnown for oneYes
Electronic Programme Guide (EPG)Known for oneYes
Programming periodKnown for one8 day(s)
On Screen Display (OSD)Known for oneYes
Number of OSD languagesKnown for one38
Picture-in-PictureKnown for oneNo
Hotel modeKnown for oneNo
Basic hotel modeKnown for oneYes
Works with Amazon AlexaKnown for oneYes
Works with Samsung BixbyKnown for oneNo
Voice controlKnown for oneYes
Power4 differ
Energy efficiency class (SDR)DiffersGF
Energy consumption (SDR) per 1000 hoursDiffers84 kWh125 kWh
Energy consumption (HDR) per 1000 hoursDiffers105 kWh326 kWh
AC input voltageDiffers100-240 V100 - 240 V
Energy saving modeKnown for oneYes
Brand-specific features1 differ
LG technologies (AV/TV)DiffersAI Acoustic Tuning, AI Sound Pro, AI Super Upscaling 4K, Bluetooth Surround Ready, Dynamic Tone Mapping Pro, LG Sound Sync, ThinQ™, WOW Orchestra, WebOS Smart TVAI Super Upscaling 4K, Bluetooth Surround Ready, LG Channels, LG Sound Sync, Magic Remote Control, ThinQ™, WOW Orchestra
Weight & dimensions10 differ
Width (with stand)Differs1236 mm1711 mm
Depth (with stand)Differs235 mm267 mm
Height (with stand)Differs772 mm1035 mm
Weight (with stand)Differs11.6 kg27.1 kg
Width (without stand)Differs1236 mm1711 mm
Depth (without stand)Differs67.9 mm47.1 mm
Height (without stand)Differs718 mm982 mm
Weight (without stand)Differs11.5 kg23.5 kg
Stand widthDiffers112.4 cm52 cm
Stand depthDiffers23.5 cm26.7 cm
Packaging data4 differ
Package widthDiffers1360 mm1879 mm
Package depthDiffers142 mm228 mm
Package heightDiffers845 mm1130 mm
Package weightDiffers15.8 kg38.5 kg
Packaging content1 differ
Desktop standKnown for oneYes
Remote control typeDiffersMR25GBMagic Remote MR25GA
Soundbar includedKnown for oneNo
Cables includedKnown for oneAC
Other features1 differ
Digital Living Network Alliance (DLNA) certifiedKnown for oneYes
Warranty periodDiffers2 year(s)5 year(s)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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