| Summary | LG NanoCell AI 50NANO81A3A. Display diagonal: 127 cm (50"), Display resolution: 3840 x 2160 pixels, HD type: 4K Ultra HD, Display technology: NanoCell, Screen shape: Flat, LED backlighting type: Direct-LED. Smart TV. Native aspect ratio: 16:9. Digital signal format system: DVB-S, DVB-S2, DVB-T, DVB-T2. Wi-Fi, Ethernet LAN. Product colour: Black | 
| Category Code | TVP | 
| CnCode | 85287240 | 
| Display diagonal | 50 | 
| Display diagonal (metric) | 126 | 
| Display resolution | 3840 x 2160 | 
| Display technology | NanoCell | 
| HD type | 4K Ultra HD | 
| LED backlighting type | Direct-LED | 
| Native aspect ratio | 16:9 | 
| Native refresh rate | 60 | 
| Screen shape | Flat | 
| Apple AirPlay 2 support | Yes | 
| Internet TV | Yes | 
| Operating system installed | WebOS | 
| Operating system version | 25 | 
| Smart TV | Yes | 
| Audio Return Channel (ARC) | Yes | 
| Common interface (CI) | Yes | 
| Common interface Plus (CI+) | Yes | 
| Common interface Plus (CI+) version | 1.4 | 
| Consumer Electronics Control (CEC) | SimpLink | 
| Digital audio optical out | 1 | 
| Ethernet LAN (RJ-45) ports | 1 | 
| HDMI ports quantity | 3 | 
| HDMI version | 2.1 | 
| PC in (D-Sub) | No | 
| RF ports quantity | 2 | 
| USB 2.0 ports quantity | 2 | 
| Audio decoders | Dolby Digital | 
| Audio output channels | 2.0 | 
| Built-in subwoofer | No | 
| Enhanced Audio Return Channel (eARC) | Yes | 
| Number of speakers | 2 | 
| RMS rated power | 20 | 
| Sound modes | AI Sound Pro/Clear Voice Pro | 









