UHD 4K UA7700 55″ (2025)

LG 55UA7700AUA

Full specifications, official manuals and how to use your phone as the remote for this LG TV.

Screen
55″
Resolution
4K
Year
2025
Line
UHD
System
webOS 25

Does the 55UA7700AUA work with RemotApp?

Yes. The 55UA7700AUA runs webOS 25, and RemotApp controls it over Wi-Fi with no setup beyond accepting the connection on the TV once.

  • Remote over Wi-Fi Yes
  • Infrared (Android with IR) Yes
  • Send photos and videos Yes
  • Turn on from the phone Yes

Protocol: LG webOS (SSAP 3000/3001)

What the code 55UA7700AUA means

TV model codes follow the maker’s naming rules. Reading it piece by piece:

  1. 55Screen size in inches
  2. UA7700Series (2025 line) · UHD
  3. AVersion / finish
  4. UAMarket code · United States

55UA7700AUA specifications

Display

Display diagonal140.2 cm (55.2")
HD type4K Ultra HD
Display technologyLED
LED backlightYes
LED backlighting typeDirect-LED
Screen shapeFlat
Native aspect ratio16:9
Native refresh rate60 Hz
Display resolution3840 x 2160 pixels
Display diagonal (metric)140.208 cm

TV tuner

Tuner typeDigital
Analog signal format systemATSC
Digital signal format systemATSC, QAM

Smart TV

Smart TVYes
Internet TVYes
Operating system installedWebOS
Operating system versionwebOS 25
Apple AirPlay 2 supportYes
Smart modesFilmmaker
Video appsAmazon Prime Video, Apple TV, Disney+, Netflix, YouTube

Audio

Number of speakers2
Audio output channels2.0 channels
Audio decodersDolby Atmos
Sound modesClear Voice Pro
Speaker directionDown firing
TV Sound Mode ShareYes
Enhanced Audio Return Channel (eARC)Yes

Network

Wi-FiYes
Wi-Fi standardsWi-Fi 5 (802.11ac)
BluetoothYes
Bluetooth version5.0
Ethernet LANYes
MiracastYes
Web browserYes

Design

VESA mountingYes
Panel mounting interface300 x 200 mm

Performance

High Dynamic Range (HDR) technologyDynamic Tone Mapping, High Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG), Filmmaker Mode
Game modeYes
Audio formats supportedAAC, AC3, AC4, EAC3, HE-AAC, MP2, MP3, PCM, apt-X
AI UpscaleYes
Picture processorα7 Gen 8 AI Processor 4K
High Dynamic Range (HDR) supportedYes
Game featuresAuto Low Latency Mode (ALLM), Game Optimizer, HGiG, Variable Refresh Rate (VRR)
4K Ultra HD upscalingYes
Multi ViewNo
Smartphone/tablet remote supportYes
USB recordingYes

Ports & interfaces

Audio Return Channel (ARC)Yes
Ethernet LAN (RJ-45) ports1
USB 2.0 ports quantity1
Digital audio optical out1
RF ports quantity1
HDMI ports quantity3
Consumer Electronics Control (CEC)Yes

Management features

Voice controlYes
Works with Amazon AlexaYes
Works with the Google AssistantYes

Power

Power consumption (typical)113 W
Power consumption (standby)0.5 W
AC input voltage120 V
AC input frequency50/60 Hz

Brand-specific features

LG technologies (AV/TV)4K Super Upscaling, AI Magic Remote, AI Sound Pro (Virtual 9.1.2 Up-mix), ALLM, Apple Airplay 2, Bluetooth Surround Ready, Clear Voice Pro, Dolby Atmos®, Dynamic Tone Mapping, Filmmaker Mode™, Game Optimiser, Google Cast, HDR, LG Channels, Magic Remote Control, Precision HDR Master Pro, Precision Sound Master Pro, ThinQ™, VRR, WOW Orchestra, Sports Alert, LG Sound Sync

Weight & dimensions

Width (with stand)1237 mm
Depth (with stand)231.1 mm
Height (with stand)779.8 mm
Weight (with stand)11.6 kg
Width (without stand)1237 mm
Depth (without stand)68.6 mm
Height (without stand)718.8 mm
Weight (without stand)11.5 kg
Stand width108.7 cm

Packaging data

Package weight15.9 kg

Packaging content

Remote control typeMagic Remote MR25

Other features

Country of originMexico
Warranty period3 year(s)

Technical data: Open Icecat and the manufacturer. Check the official page before buying; specs can vary by batch and market.

How to control the 55UA7700AUA with your phone

  1. Connect your phone to the same Wi-Fi network as the TV. (Not the guest network.)
  2. Turn the TV on and install RemotApp on your phone.
  3. Open RemotApp. It finds the TVs on your network by itself; tap your LG TV.
  4. The TV shows a connection request from RemotApp. Select “Accept”.
  5. Tap Volume + to test. That’s it: your phone is now the remote.

Full guide for LG TVs, with fixes when it won’t connect

Turning the 55UA7700AUA on without the remote

Turn on “Mobile TV On” (or “Turn on via Wi-Fi”), usually under Settings › General › Devices. The TV then accepts a wake-up signal from your phone while in standby.

Also sold as

Same TV, different market codes:

  • 55UA7700PUB United States

Questions about the 55UA7700AUA

Can I control the LG 55UA7700AUA with my phone?

Yes. The 55UA7700AUA runs webOS 25, and RemotApp controls it over Wi-Fi with no setup beyond accepting the connection on the TV once.

What year is the LG 55UA7700AUA?

The 55UA7700AUA is part of LG’s 2025 line (UHD UA7700).

What operating system does the 55UA7700AUA use?

The 55UA7700AUA runs webOS 25.

How many HDMI ports does the 55UA7700AUA have?

The 55UA7700AUA has 3 HDMI ports.

Does the 55UA7700AUA have Bluetooth?

Yes

Turning the 55UA7700AUA on without the remote

Turn on “Mobile TV On” (or “Turn on via Wi-Fi”), usually under Settings › General › Devices. The TV then accepts a wake-up signal from your phone while in standby.