| Model No |
OLED55B4PSA |
OLED55C9PTA |
| TV Type |
Smart TV |
Smart TV |
| Screen Size |
55 Inch (139 cm) |
55 Inch (139 cm) |
| Resolution |
4K 3840 x 2160 |
4K 3840 x 2160 |
| Aspect Ratio |
16:9 |
16:9 |
| Motion Rate |
120 Hz |
60 Hz |
| Viewing Angle |
178°/178° |
178°/178° |
| USB |
| USB Version |
: 2.0 |
| Supported Audio Formats |
: MP3, AC4, AC3, EAC3, AAC, MP2, PCM, WMA |
| Supported Video Formats |
: MKV, DivX, MP4, AVI, ASF, MOV, FLV |
| Supported Picture Formats |
: JPEG, PNG, BMP, WebP, JPS, MPO |
|
| USB Version |
: 2.0 |
| Supported Audio Formats |
: MP3, AC4, AC3, EAC3, AAC, MP2, PCM, WMA |
| Supported Video Formats |
: MKV, DivX, MP4, AVI, ASF, MOV, FLV |
| Supported Picture Formats |
: JPEG, JPS, MPO |
|
| Video |
| Backlight |
: 4K UHD ONED |
| HLG |
: Yes |
| HDR10 |
: Yes |
| Dolby Vision |
: Yes |
| Filmmaker Mode™ |
: Yes |
| AI Brightness Control |
: Yes |
| Dynamic Tone Mapping Pro |
: Yes |
| Wide Colour Gamut |
: OLED Colour |
| Motion |
: OLED Motion |
| Dimming Technology |
: Pixel Dimming |
| AI Genre Selection |
: Yes ( SDR, HDR ) |
| Picture Processor |
: α8 AI Processor 4K |
| High Frame Rate ( HFR ) |
: 4K 120 Fps ( HDMI ) |
| AI Upscaling |
: α8 AI Super Upscaling 4K |
| Picture Mode |
: 10 Modes ( Personalized Picture Wizard, Vivid, Standard, Eco, Cinema, Sports, Game, Filmmaker, ( ISF ) Expert ( Bright Room ), ( ISF ) Expert ( Dark Room )) |
|
| BackLight |
: OLED |
| Digital TV Reception |
: Terrestrial DVB-T2 |
| Analog TV Reception |
: Yes |
| HDR Dynamic Tone Mapping |
: Pro |
| Active Noise Reduction |
: Yes |
| Resolution Upscaler |
: 4K Upscaler |
| True Color Accuracy |
: Quad Step NR |
| Color Enhancer |
: Advance |
| HEVC Codec |
: 4K@120P, 10 bit |
| HDR |
: 4K Cinema HDR |
| HLG |
: Yes |
| HDR 10 Pro |
: Yes |
| HDR Effect |
: Yes |
| IPS Panel |
: Yes |
| Billion Rich Color |
: Yes |
| AI Picture |
: Yes |
| AI Brightness |
: Yes |
| Object Depth Enhancer |
: Yes |
| Dolby Vision HDR |
: Yes |
| Wide Color Gamut |
: Perfect Color |
| Perfect Black |
: Infinite Contrast |
| Dimming |
: Self Lighting Pixel |
| Ultra Luminance |
: Ultra Luminance Pro |
| Picture Mode |
: Vivid, Standard, Eco, Cinema, Sports, Game, HDR Effect, Technicolor Expert, ( ISF ) Expert ( Bright Room ), ( ISF ) Expert ( Dark Room ) |
|
| Audio |
| Audio Output ( RMS ) |
: 20 W |
| Dolby Atmos |
: Yes |
| LG Sound Sync |
: Yes |
| AI Acoustic Tuning |
: Yes |
| Sound Mode Share |
: Yes |
| Simultaneous Audio Output |
: Yes |
| Speaker Direction |
: Down Firing |
| Speaker System |
: 2.0 Channel |
| Bluetooth Surround Ready |
: Yes ( 2 Way Playback ) |
| WiSA Ready |
: Yes ( Up To 2.1 Channel ) |
| Clear Voice Pro |
: Yes ( Auto Volume Leveling ) |
| AI Sound |
: α8 AI Sound Pro ( Virtual 9.1.2 Up-Mix ) |
| Audio Codec |
: AC4, AC3 ( Dolby Digital ), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X ( Refer To Manual ) |
|
| Audio Output ( RMS ) |
: 40 W |
| Speaker System |
: 2.2 Channel Speaker |
| Sub Woofer |
: Yes ( 20 W ) |
| Dolby Digital Decoder |
: Yes |
| DTS Decoder |
: Yes |
| Dolby Atmos |
: Yes |
| Clear Voice III |
: Yes |
| AI Sound |
: Yes |
| AI Acoustic Tuning |
: Yes |
| Optical Sound Sync |
: Yes |
| Wireless Sound Sync ( TV To LG Media Device ) |
: Yes |
| Wireless Sound Sync |
: Yes |
| WiSA Speakers |
: Yes |
| Sound Type |
: Front Firing |
| Bluetooth Audio Playback |
: Yes ( 2 Way Playback ) |
| Surround Sound |
: Dolby Surround / OLED Surround |
| Sound Mode |
: Standard, Cinema, Clear Vioce III, Cricket, Music, Game |
|
| Connectivity Options |
| HDMI ( 2.1 ) |
: 4ea ( Supports 4K 120Hz, eARC, VRR, ALLM, QMS ( 4 Port )) |
| USB ( 2.0 ) |
: 2ea |
| Ethernet / LAN |
: 1ea |
| RF Input ( Antenna / Cable ) |
: 2ea |
| Optical Digital Audio Out ( SPDIF ) |
: 1ea |
| Wi-Fi 5 |
: Yes |
| Bluetooth 5.1 |
: Yes |
| Simplink ( HDMI CEC ) |
: Yes |
| HDMI Audio Return Channel |
: eARC ( HDMI 3 ) |
|
| HDMI |
: 4 ( 3 Side, 1 Rear ) |
| HDMI Version |
: 2.1 |
| USB Ports [ USB 2.0 ] |
: 2 ( 1 Side, 2 Rear ) |
| Bluetooth |
: 5.0 |
| Wi-Fi |
: Yes |
| LAN |
: Yes |
| Composite In ( CVBS + Audio ) |
: Yes |
| HDMI Audio Return Channel ( eARC ) |
: Yes |
| RF In |
: Yes ( Rear ) |
| Digital Audio Out ( Optical ) |
: Yes ( Optical ) Rear |
| Component In (Y,Pb,Pr + Audio) |
: Yes ( Composite, Component common ) Rear |
|
| Smart TV Features |
| Operating System |
: WebOS 24 Smart TV |
| ThinQ |
: Yes |
| Multi View |
: Yes |
| LG Channels |
: Yes |
| Always Ready |
: Yes |
| Family Settings |
: Yes |
| Full Web Browser |
: Yes |
| USB Camera Compatible |
: Yes |
| Works With Apple Airplay2 |
: Yes |
| Intelligent Voice Recognition |
: Yes |
| Magic Remote Control Built-In |
: Yes |
| Room To Room Share |
: Yes ( Receiver ) |
| Smartphone Remote App |
: Yes ( LG ThinQ ) |
|
| Operating System |
: WebOS Smart TV |
| Smart TV Platform |
: ThinQ AI |
| CPU / Processor |
: α9 Gen 2 Intelligent |
| ThinQ AI |
: Voice Command & Voice Search |
| Google Assistant |
: Yes |
| Amazon Alexa |
: Yes |
| Conversational AI |
: Yes |
| Launcher ( Recent / Home / My Apps ) |
: Yes |
| Wi-Fi ( Built IN / Optional ) |
: Yes |
| Magic Remote Built IN / Optional |
: Yes |
| Smart Phone Remote Controller ( Remote App ) |
: Yes |
| App Store |
: Yes |
| Cloud Photo & Video |
: Yes |
| Premium Content ( India Specific Apps ) |
: Yes |
| Full Web Browser |
: Yes |
| 360 VR |
: Yes |
| Quick ( 1 Click ) Access |
: Yes |
| Gallery Mode |
: Yes |
| LG Store |
: Yes |
| Mobile Connection Overlay |
: Yes |
| Magic Mobile Connection |
: Yes |
| Home Dashboard |
: Yes |
| Music Player |
: Yes |
| Multi View |
: Yes |
| Apple Air Play |
: Yes |
| Apple HomeKit |
: Yes |
| DLNA |
: Yes |
| Miracast™ |
: Yes |
| Share & Control |
: Yes |
| Network File Browser |
: Yes |
| Voice Recognition - Language |
: US English |
| Voice Recognition |
: Yes ( Speech To Text ) |
| Direct Keys ( Apps ) |
: Netflix, Amazon Prime Video |
| Voice Recognition - Usage In |
: Voice Command / Search / Web browsing / SNS |
| AI Functions |
: AI Home, AI Recommendation, Intelligent Edit |
| Magic Remote Modes |
: 4 modes ( Universal Control, Point, Wheel, Voice ) |
|
| Other Features |
| Design |
: Ultra Slim Design |
| Gray Scale |
: Yes |
| Invert Colors |
: Yes |
| High Contrast |
: Yes |
| Warranty Period |
: 1 Year Parts & Labor |
|
| Smart Energy Saving |
: Yes |
| e-Manual |
: Yes |
| OSD Language |
: 26 |
| Simplink ( HDMI CEC ) |
: Yes |
| External HDD Recording Support |
: Yes |
| Time Shift ( On External HDD ) |
: Yes |
| Scheduled Recording |
: Yes |
| Maximum Operating Distance |
: 8 Feet |
| DivX ( SD / HD ) |
: DivX HD |
| Recording Input Modes |
: RF and Composite AV input |
| Subtitle For DivX ( Language ) |
: English, French, Spanish, Portuguese, Italian, Vietnamese, Bulgarian, Russian, Maori, Ukrainian, Kazakh, Thai, Hebrew, Arab, Korean |
|
| General Details |
| Power Supply |
: AC 100~240V 50-60Hz |
| Power Consumption Standby |
: Under 0.5 W |
| Energy Star Rating |
: 5.0 |
| Weight Without Stand |
: 14.3 Kg |
| Weight With Stand |
: 14.5 Kg |
| Packaging Weight |
: 19.5 Kg |
| VESA Mounting |
: 300 mm X 200 mm |
|
| Power Supply ( Voltage, Hz ) |
: AC 100~240V 50-60Hz |
| Power Consumption Standby Mode |
: 0.5 W |
| Set Weight ( Without Stand ) |
: 18.9 Kg |
| Set Weight ( With Stand ) |
: 23.0 Kg |
| Set Weight ( In Carton ) |
: 28.6 Kg |
|
| Supplied Accessories |
| Remote Control |
: Magic Remote Control MR24 |
| Power Cable |
: Yes ( Attached ) |
| Remote Control Batteries |
: AA X 2EA |
|
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Compare LG OLED55B4PSA with:
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Compare LG OLED55C9PTA with:
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Key Differences
In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. Audio output differs between the two (40 W vs 20 W), which can influence overall sound clarity and loudness. LG OLED55C9PTA and LG OLED55B4PSA are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both TVs come with smart platforms that support popular streaming apps and voice control features. LG OLED55C9PTA and LG OLED55B4PSA offer different motion rates (60 Hz vs 120 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Verdict: Choosing between LG OLED55C9PTA and LG OLED55B4PSA depends on your usage, whether you prioritize display quality, smoother motion, or smart features.
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