- Flat 139.7 cm (55") OLED evo
- 4K Ultra HD 3840 x 2160 pixels 16:9
- 0.1 ms OLED Motion
- DVB-C, DVB-S, DVB-S2, DVB-T, DVB-T2
- Smart TV Internet TV
- Wi-Fi Ethernet LAN Bluetooth
- High Dynamic Range (HDR) supported
- VESA mounting 300 x 200 mm
- F 77 kWh
LG OLED evo AI OLED55C51LA. Display diagonal: 139,7 cm (55"), Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Display technology: OLED evo, Screen shape: Flat. Smart TV. Motion interpolation technology: OLED Motion, Response time: 0,1 ms, Native aspect ratio: 16:9. Digital signal format system: DVB-C, DVB-S, DVB-S2, DVB-T, DVB-T2. Wi-Fi, Ethernet LAN. Product colour: Black
| Display | |
|---|---|
| Display diagonal | 139.7 cm (55") |
| HD type | 4K Ultra HD |
| Display technology | OLED evo |
| LED backlight | Yes |
| Screen shape | Flat |
| Native aspect ratio | 16:9 |
| Response time | 0.1 ms |
| Motion interpolation technology | OLED Motion |
| Native refresh rate | 120 Hz |
| Display refresh rates supported | 144 Hz |
| Display resolution | 3840 x 2160 pixels |
| Display diagonal (metric) | 139 cm |
| TV tuner | |
| Tuner type | Analog & digital |
| Digital signal format system | DVB-C, DVB-S, DVB-S2, DVB-T, DVB-T2 |
| Number of tuners | 1 tuner(s) |
| Auto channel search | Yes |
| Smart TV | |
| Smart TV | Yes |
| Internet TV | Yes |
| Operating system installed | WebOS |
| Operating system version | 25 |
| Apple AirPlay 2 support | Yes |
| Audio | |
| RMS rated power | 40 W |
| Audio output channels | 2.2 channels |
| Audio decoders | Dolby Atmos, Dolby Digital |
| Sound modes | AI Acoustic Tuning, AI Sound Pro, Clear Voice Pro |
| TV Sound Mode Share | Yes |
| Enhanced Audio Return Channel (eARC) | Yes |
| Network | |
| Wi-Fi | Yes |
| Wi-Fi standards | 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax) |
| Bluetooth | Yes |
| Bluetooth version | 5.3 |
| Ethernet LAN | Yes |
| Web browser | Yes |
| Design | |
| Product colour | Black |
| VESA mounting | Yes |
| Panel mounting interface | 300 x 200 mm |
| Introduction year | 2025 |
| Stand type | Center stand |
| Performance | |
| High Dynamic Range (HDR) technology | Dolby Vision, Dynamic Tone Mapping PRO, Filmmaker Mode, High Dynamic Range 10 (HDR10), Hybrid Log-Gamma (HLG) |
| Game mode | Yes |
| Audio formats supported | AAC, AC3, AC4, EAC3, HE-AAC, MP2, MP3, PCM, WMA, apt-X |
| AI Upscale | Yes |
| Backlight dimming technology | Pixel Dimming |
| Picture processing technology | LG AI Picture Pro |
| Picture processor | α9 Gen 8 AI Processor 4K |
| High Dynamic Range (HDR) supported | Yes |
| AMD FreeSync | Yes |
| AMD FreeSync type | FreeSync Premium |
| NVIDIA G-SYNC | Yes |
| NVIDIA G-SYNC type | G-SYNC |
| Game features | 4K HFR (High Frame Rate), Auto Low Latency Mode (ALLM), Game Dashboard, HGiG, Variable Refresh Rate (VRR) |
| Multi View | Yes |
| Smartphone/tablet remote support | Yes |
| USB recording | Yes |
| Ports & interfaces | |
| PC in (D-Sub) | No |
| Ethernet LAN (RJ-45) ports | 1 |
| USB 2.0 ports quantity | 3 |
| Digital audio optical out | 1 |
| RF ports quantity | 2 |
| RF connector type | F, IEC |
| Common interface (CI) | Yes |
| HDMI ports quantity | 4 |
| Consumer Electronics Control (CEC) | SimpLink |
| Management features | |
| Voice control | Yes |
| Works with the Google Assistant | Yes |
| Works with Apple Siri | Yes |
| Power | |
| Power consumption (standby) | 0.5 W |
| Energy efficiency class (SDR) | F |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 77 kWh |
| Energy consumption (HDR) per 1000 hours | 191 kWh |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50/60 Hz |
| Energy efficiency scale | A to G |
| Brand-specific features | |
| LG technologies (AV/TV) | AI Super Upscaling 4K, Bluetooth Surround Ready, LG Channels, LG Sound Sync, Magic Remote Control, ThinQ™, WOW Orchestra |
| Weight & dimensions | |
| Width (with stand) | 1222 mm |
| Depth (with stand) | 230 mm |
| Height (with stand) | 757 mm |
| Weight (with stand) | 16 kg |
| Width (without stand) | 1222 mm |
| Depth (without stand) | 45.1 mm |
| Height (without stand) | 703 mm |
| Weight (without stand) | 14.1 kg |
| Stand width | 47 cm |
| Stand depth | 23 cm |
| Packaging data | |
| Package width | 1360 mm |
| Package depth | 187 mm |
| Package height | 810 mm |
| Package weight | 21.3 kg |
| Packaging content | |
| Cables included | AC |
| Remote control included | Yes |
| Remote control type | Magic Remote MR25GA |
| Other features | |
| Warranty period | 5 year(s) |










