| Model No |
55S551G-CA |
55NANO776RA |
| 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 |
60 Hz |
60 Hz |
| Viewing Angle |
178°/178° |
178°/178° |
| USB |
| USB Version |
: 2.0 |
| Supported Audio Formats |
: AAC, MP3, WMA, WAV ( PCM ), AIFF, FLAC, AC3 |
| Supported Video Formats |
: MKV ( H.264 ), MP4, MOV ( H.264 ), TS ( H.264 ) |
| Supported Picture Formats |
: JPEG, PNG, GIF |
|
| 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 Direct LED |
| HLG |
: Yes |
| HDR 10 |
: Yes |
| HDR10+ |
: Yes |
| Dolby Vision |
: Yes |
| Description |
: Smart & Stunning |
| Display Colors |
: 1.07 Billion Colors |
| Backlight Type |
: High Brightness LED Backlight |
| Picture Engine |
: TCL AIPQ Processor with Deep Learning AI |
| Motion Enhancement Technology |
: Motion Rate 240 with MEMC Frame Insertion |
| Picture Preset |
: Vivid, Low Power, Smart HDR, Sports, Movie, Game, PC |
|
| Backlight |
: 4K UHD Nano Cell Direct LED |
| HLG |
: Yes |
| HDR10 |
: Yes |
| Filmmaker Mode™ |
: Yes |
| AI Brightness Control |
: Yes |
| Dynamic Tone Mapping |
: Yes |
| BLU Type |
: Direct |
| Display Type |
: 4K UHD |
| Wide Color Gamut |
: Nano Color |
| AI Upscaling |
: 4K Upscaling |
| Picture Engine |
: α5 AI Processor 4K Gen6 |
| Picture Mode |
: 9 Modes ( Vivid, Standard, Eco, Cinema, Sports, Game, Filmmaker, ( ISF ) Expert ( Bright Room ), ( ISF ) Expert ( Dark Room )) |
|
| Audio |
| Audio Output ( RMS ) |
: 20 W ( 2 X 10 W ) |
| DTS Virtual : X |
: Yes |
| Bluetooth Personal Audio |
: Yes |
| DTS Processing |
: DTS-X |
| Dolby Processing |
: Dolby Atmos, Dolby Digital+ |
| Audio Effect |
: Dynamic, Standard, Movie, Music, Voice, Live |
| Audio Passthrough |
: Dolby Atmos, Dolby Digital+, Dolby Digital, PCM |
|
| Audio Output ( RMS ) |
: 20 W |
| LG Sound Sync |
: Yes |
| Clear Voice Pro |
: Yes |
| AI Acoustic Tuning |
: Yes |
| Sound Mode Share |
: Yes |
| Simultaneous Audio Output |
: Yes |
| Speaker System |
: 2.0 Channel |
| Speaker Direction |
: Down Firing |
| Bluetooth Surround Ready |
: Yes ( 2 Way Playback ) |
| AI Sound |
: AI Sound Pro ( Virtual 5.1.2 Up-Mix ) |
| Audio Codec |
: AC4, AC3 ( Dolby Digital ), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X ( Refer To Manual ) |
|
| Connectivity Options |
| HDMI |
: 3 X ( 1 With eARC ) |
| USB 2.0 |
: 1 |
| Bluetooth 5.2 |
: Yes |
| Ethernet / LAN |
: 1 Yes |
| Headphone Output |
: 1 Yes |
| Google Chromecast Built-In |
: Yes |
| RF Input ( NTSC, ATSC ) |
: 1 Yes |
| SPDIF Digital Audio Optical |
: 1 Yes |
| Wi-Fi |
: Wi-Fi 5 ( 802.11ac ) |
| AV Input |
: Composite Video + L & R Audio In ( Mini 3.5 mm Connector ) |
|
| HDMI 2.1 |
: 3ea ( Supports eARC, ALLM As Specified In HDMI 2.1 ) |
| USB 2.0 |
: 2ea |
| Ethernet / LAN |
: 1ea |
| RF Input ( Antenna / Cable ) |
: 2ea |
| Optical Digital Audio Out ( SPDIF ) |
: 1ea |
| Wi-Fi 5 |
: Yes |
| Bluetooth 5.0 |
: Yes |
| Simplink ( HDMI CEC ) |
: Yes |
| HDMI Audio Return Channel |
: eARC HDMI 2 |
|
| Smart TV Features |
| Operating System |
: Google TV |
| Disney+ |
: Yes |
| Apple TV |
: Yes |
| YouTube |
: Yes |
| Peacock TV |
: Yes |
| YouTube TV |
: Yes |
| Paramount+ |
: Yes |
| Apple Airplay2 |
: Yes |
| Backlit Voice Remote |
: Yes |
| Hands-Free Voice Control |
: Yes |
| Works With |
: Amazon Alexa, Google Assistant, Apple HomeKit |
|
| Operating System |
: WebOS 23 Smart TV |
| ThinQ |
: Yes |
| Sports Alert |
: Yes |
| Family Settings |
: Yes |
| Full Web Browser |
: Yes |
| USB Camera Compatible |
: Yes |
| Magic Remote Control |
: Built-In |
| Room To Room Share |
: Yes ( Receiver ) |
| Smartphone Remote App |
: Yes ( LG ThinQ ) |
| Amazon Alexa |
: Yes ( Built-in, English Only ) |
| Intelligent Voice Recognition |
: Yes ( Arabic / Hebrew / Turkiyish ) |
|
| Other Features |
| Design |
: Full View Metal Bezel-Less Design |
| Clock |
: Yes |
| Sleep Timer |
: Yes |
| Channel Skip |
: Yes |
| Closed Caption |
: Yes |
| Input Label Edit |
: Yes |
| Channel Label Edit |
: Yes |
| Easy Voice Control |
: Yes |
| JPEG / MP3 For USB |
: Yes |
| Game Accelerator 120 |
: Yes |
| Auto Game Mode ( ALLM ) |
: Yes |
| Enhanced Dialogue Mode |
: Yes |
| Auto Channel Search / Channel Scanning |
: Yes |
| Parental Control ( V -Chip ) |
: USA |
| Control Buttons |
: One Button |
| Program Guide ( EPG ) |
: Up To 7 Days Future |
| Adjustable Color Temperature |
: Warm, Normal, Cool |
| Tuner Type |
: ATSC, NTSC, Clear QAM |
| Languages |
: English, Spanish, French |
| Warranty |
: 1 Year Limited Manufacturers Warranty |
|
| Design |
: Nano Cell Design |
| Gray Scale |
: Yes |
| HGIG Mode |
: Yes |
| Invert Colors |
: Yes |
| High Contrast |
: Yes |
| Auto Low Latency Mode ( ALLM ) |
: Yes |
| Game Optimizer |
: Yes ( Game Dashboard ) |
|
| General Details |
| Power Supply ( Voltage, Hz ) |
: AC 100V-240V 50/60Hz |
| Annual Power Consumption |
: 262 kWh/Y |
| Power Consumption Standby |
: < 0.5 W |
| Weight Without Stand |
: 10.52 Kg |
| Weight With Stand |
: 10.70 Kg |
| Package Weight |
: 15.60 Kg |
| VESA Walll Mount Pattern |
: 300 mm X 300 mm |
| Screw Size |
: M6 X 30 ( Top ). M6 X 16 ( Bottom ) |
|
| Power Supply ( Voltage, Hz ) |
: AC 100~240V 50-60Hz |
| Standby Power Consumption |
: Under 0.5 W |
| Weight Without Stand |
: 14.0 Kg |
| Weight With Stand |
: 14.1 Kg |
| Packaging Weight |
: 18.9 Kg |
| VESA Mounting |
: 300 mm X 300 mm |
|
| Supplied Accessories |
| Remote Control |
: Voice Remote Control |
| Power Cord |
: Yes |
| 2 X AAA Batteries |
: Yes |
| Warranty Info English |
: Yes |
| Quick Start Guide English |
: Yes |
|
| Remote Control |
: Magic Remote Control |
| Batteries |
: AAA X 2EA |
| Power Cable |
: Yes ( Detachable ) |
|
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Compare TCL 55S551G-CA with:
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Compare LG 55NANO776RA with:
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Key Differences
Both TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Both TVs come with smart platforms that support popular streaming apps and voice control features. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Audio output differs between the two (20 W ( 2 X 10 W ) vs 20 W), which can influence overall sound clarity and loudness. TCL 55S551G-CA and LG 55NANO776RA are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. Verdict: Choosing between TCL 55S551G-CA and LG 55NANO776RA depends on your usage, whether you prioritize display quality, smoother motion, or smart features.
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