Comparison between:
- 54.6" LG 55SJ800V
- 54.6" LG 55UK6400PLF
Brand, series, model
Information about the brand, series, model and model aliases.
| LG 55SJ800V | LG 55UK6400PLF | |
| Series | SJ800 | UK640 |
 |  | |
| Model year | 2017 | 2018 |
Display
Information about the main characteristics of the display - panel, backlight, resolution, refresh rate, etc.
| Size class | 54.6 in | 54.6 in |
| Diagonal | 1388 mm 138.8 cm 54.6457 in 4.5538 ft | 1388 mm 138.8 cm 54.6457 in 4.5538 ft |
| Width | 1209.75 mm 120.975 cm 47.6278 in 3.969 ft | 1209.75 mm 120.975 cm 47.6278 in 3.969 ft |
| Height | 680.483 mm 68.0483 cm 26.7907 in 2.2326 ft | 680.483 mm 68.0483 cm 26.7907 in 2.2326 ft |
| Panel manufacturer | LG Display | - |
| Panel type | IPS | IPS |
| Panel bit depth | 10 bits (8 bits + FRC) | 10 bits (8 bits + FRC) |
| FRC | Yes | Yes |
| Colors | 1073741824 colors 30 bits | 1073741824 colors 30 bits |
| Aspect ratio | 1.778:1 16:9 | 1.778:1 16:9 |
| Resolution | 3840 x 2160 pixels Ultra HD (UHD) / 4K / 2160p | 3840 x 2160 pixels Ultra HD (UHD) / 4K / 2160p |
| Pixel pitch | 0.315 mm 0.0315 cm 0.0124 in 0.001 ft | 0.315 mm 0.0315 cm 0.0124 in 0.001 ft |
| Pixel density | 81 ppi 31 ppcm | 81 ppi 31 ppcm |
| Display area | 92.76 % | 90.56 % |
| Backlight | Edge LED | Direct LED |
| DCI P3 | 90 % | 80 % |
| Brightness | - | 250 cd/m² |
| Peak brightness | - | 350 cd/m² |
| Static contrast | - | 1300 : 1 |
| HDR | Dolby Vision HDR10 HLG (Hybrid Log Gamma) | HDR10 HLG (Hybrid Log Gamma) |
| Horizontal viewing angle | 178 ° | 178 ° |
| Vertical viewing angle | 178 ° | 178 ° |
| Minimum response time | - | 9 ms 0.0090 s |
| Average response time | - | 13 ms 0.0130 s |
| Maximum response time | - | 32 ms 0.0320 s |
| RGBW structure - 2880 (RGB) + 960 (W) | RGBW structure - 2880 (RGB) + 960 (W) |
3D
3D displays use various technologies to achieve a 3D effect. Each of these technologies has its own advantages and drawbacks.
| 3D | No | No |
Frequencies
Information about the horizontal and vertical refresh rates/frequencies.
| Vertical frequency (digital) | 100 Hz / 120 Hz | 50 Hz / 60 Hz |
Frame interpolation
Many smart TV sets use a technology for interpolating (inserting) of intermediate frames between existing ones in order to achieve more fluent visualization, especially for dynamic scenes.
| Interpolation technology | Picture Mastering Index | Picture Mastering Index |
| Interpolation value | 2800 | 1600 |
| Interpolation measurement unit | PMI | PMI |
Power supply and consumption
Information about the power supply and consumption, energy efficiency class, etc.
| 220V | 220 V - 240 V | 220 V - 240 V |
| Alternating current frequency | 50 Hz - 60 Hz | 50 Hz - 60 Hz |
| Power consumption (sleep) | 0.5 W | 0.5 W |
| Power consumption (average) | 78 W | 89 W |
| Energy efficiency class | A+ | A+ |
Dimensions, weight and color
Information about the dimensions and the weight of the specific model with and without stand as well as the colors, in which it is offered to the market.
| Width | 1236 mm 123.6 cm 48.6614 in 4.0551 ft | 1247 mm 124.7 cm 49.0945 in 4.0912 ft |
| Height | 718 mm 71.8 cm 28.2677 in 2.3556 ft | 729 mm 72.9 cm 28.7008 in 2.3917 ft |
| Depth | 62 mm 6.2 cm 2.4409 in 0.2034 ft | 89 mm 8.9 cm 3.5039 in 0.292 ft |
| Weight | 15.3 kg 33.73 lbs | 13.7 kg 30.2 lbs |
| Width with stand | 1236 mm 123.6 cm 48.6614 in 4.0551 ft | 1247 mm 124.7 cm 49.0945 in 4.0912 ft |
| Height with stand | 778 mm 77.8 cm 30.6299 in 2.5525 ft | 785 mm 78.5 cm 30.9055 in 2.5755 ft |
| Depth with stand | 233 mm 23.3 cm 9.1732 in 0.7644 ft | 259 mm 25.9 cm 10.1969 in 0.8497 ft |
| Weight with stand | 15.5 kg 34.17 lbs | 15 kg 33.07 lbs |
| Colors | Gray | Black |
Ergonomics
Information about the ergonomic functions - height adjustment, swivel angles, tilt angles, etc.
| VESA mount | Yes | Yes |
| VESA interface | 300 x 300 mm | 300 x 300 mm |
| Removable stand | Yes | Yes |
| Height adjustment | No | No |
| Landscape/portrait pivot | No | No |
| Left/right swivel | No | No |
| Forward/backward tilt | No | No |
TV tuner
The TV tuner is a device, which allows the receiving and visualization of a certain type of television signal. There are tuners for digital, analog, cable and satellite television.
| TV tuner | Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2 | Analog (NTSC/PAL/SECAM) DVB-T DVB-T2 DVB-C DVB-S DVB-S2 DVB-T2 HD |
System on Chip (SoC)
Information about the central processor, graphic processor and the memory of the model.
| CPU cores | - | 4 |
| CPU frequency | - | 1200 MHz |
| GPU cores | - | 2 |
| RAM capacity | - | 1.5 GB |
| Storage | - | 4 GB |
OS, apps and software features
Information about the operating system, applications, various software features if available.
| Operating system (OS) | webOS 3.5 | webOS 4.0 |
Audio
Information about the audio system - number and power of the built-in speakers, supported audio technologies.
| Speakers | 2 x 10 W | 2 x 10 W |
| 2.0 CH DTS Decoder DTS-HD Harman / Kardon Ultra Surround Wireless Sound Sync | 2.0 CH Down firing DTS Wireless Sound Sync |
Camera
Many contemporary desktop monitors and smart TV sets have built-in cameras.
| Camera | No | No |
Network
Supported network technologies and standards for exchanging data with other devices.
| Network | LAN Wi-Fi 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Bluetooth Wi-Fi Direct DLNA | LAN Wi-Fi 802.11a 802.11b 802.11g 802.11n 802.11n 5GHz 802.11ac Bluetooth Wi-Fi Direct DLNA |
Connectivity
Available connectivity ports, slots and interfaces.
| Connectivity | 2 x USB 2.0 1 x USB 3.0 1 x Ethernet RJ45 4 x HDMI 2.0 (ARC; CEC) 1 x Satellite In (Main; F-type female) 1 x AV Composite In 3.5 mm jack 1 x Optical Audio Out 1 x 3.5 mm Audio Out 1 x Antenna (RF) (female) 1 x CI+ 1.3 | 2 x USB 2.0 1 x Ethernet RJ45 3 x HDMI 2.0 (ARC; CEC) 1 x Satellite In (Main; F-type female) 1 x AV Composite In (Video + L/R) 1 x AV Component In (YPbPr + L/R) 1 x Optical Audio Out 1 x 3.5 mm Audio Out 1 x Antenna (RF) (female) 1 x CI+ 1.4 |
| High-bandwidth Digital Content Protection (HDCP) 2.2 SIMPLINK (HDMI-CEC) | High-bandwidth Digital Content Protection (HDCP) 2.2 SIMPLINK (HDMI-CEC) |
Features
Some additional functional features of the model.
| Features | 4K Upscaler Active HDR Cinematic Color Local Dimming Nano Cell Display PVR True Color Accuracy ULTRA Luminance Voice command | 4K Active HDR 4K Upscaler Clear Voice III Dynamic Color Dynamic Tone Mapping Google Assistant LG ThinQ AI Noise Reduction PVR True Color Accuracy ULTRA Luminance Voice command Wide Color Gammut |
Image file formats
Smart TV sets allow the display of different image file formats.
| Image file formats | JPEG MPO JPS | JPEG MPO JPS |
Audio file formats
Smart TV sets allow playing different audio file formats.
| Audio file formats/codecs | AAC AC3 aptX FLAC MP3 OGG RealAudio WMA HE-AAC LPCM | AAC AC3 aptX FLAC MP3 OGG RealAudio WMA HE-AAC LPCM |
Video file formats
Smart TV sets allow playing various video file formats.
| Video file formats/codecs | 3GPP AVI DivX Flash Video H.263 H.264 H.265 MKV QuickTime M2TS MP4 MPEG-4 TS VC-1 VP9 | 3GPP AVI DivX Flash Video H.263 H.264 H.265 MKV QuickTime M2TS MP4 MPEG-4 TS VC-1 VP9 |
Certificates, standards and licenses
Licenses from regulatory agencies, standards, certificates.
| Certificates, standards and licenses | ENERGY STAR RoHS UL/cUL | ENERGY STAR RoHS UL/cUL |
Operating and storage conditions
There are certain requirements for the environmental conditions, in which the display should be used and stored in order to function properly.
| Operating temperature | 0 °C - 40 °C 32 °F - 104 °F | 0 °C - 40 °C 32 °F - 104 °F |
| Operating humidity | 10 % - 80 % | 10 % - 80 % |
| Storage temperature | -20 °C - 60 °C -4 °F - 140 °F | -20 °C - 60 °C -4 °F - 140 °F |
| Storage humidity | 5 % - 85 % | 5 % - 85 % |
Accessories
Often the packaging of desktop monitors and smart TV sets includes accessories for them.
| Accessories | 3.5 mm composite adapter Magic remote control | - |
| LG 55SJ800V | LG 55UK6400PLF |