| Model No |
75QM851G |
OLED77CXPVA |
| TV Type |
Smart TV |
Smart TV |
| Screen Size |
75 Inch (191 cm) |
77 Inch (195.58 cm) |
| Resolution |
4K 3840 x 2160 |
4K 3840 x 2160 |
| Aspect Ratio |
16:9 |
16:9 |
| Motion Rate |
120 Hz |
120 Hz |
| Viewing Angle |
178°/178° |
178°/178° |
| USB |
| USB Version |
: 3.0 |
| 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 QD-Mini LED ULTIMATE With QLED ULTRA |
| HLG |
: Yes |
| HDR 10 |
: Yes |
| HDR 10+ |
: Yes |
| Dolby Vision IQ |
: Yes |
| Anti-Glare Screen |
: Yes |
| Display Colors |
: 1.07 Billion Colors |
| Brightness |
: Up To 5,000 Nits Peak |
| QLED ULTRA |
: Quantum Dot Technology |
| Description |
: Ultimate 4K QD-Mini LED TV |
| Backlight Type |
: High Brightness Ultimate LED Backlight |
| Motion Enhancement Technology |
: Motion Rate 480 With MEMC Frame Insertion |
| Picture Engine |
: TCL AIPQ ULTRA Processor With Deep Learning AI |
|
| Backlight |
: 4K UHD OLED |
| 2K HFR |
: Yes |
| 4K HFR |
: Yes |
| Filmmaker Mode™ |
: Yes |
| Billion Rich Colors |
: Yes |
| Wide Viewing Angle |
: Yes |
| AI Brightness Control |
: Yes |
| Display Type |
: 4K OLED |
| Upscaler |
: 4K Upscaler |
| AI Upscaling |
: AI Upscaling |
| HDR |
: Cinema HDR |
| Perfect Black |
: Perfect Black |
| Wide Color Gamut |
: Perfect Color |
| HLG |
: Yes ( 4K / 2K ) |
| HDR Effect |
: Yes ( 4K / 2K ) |
| HDR10 Pro |
: Yes ( 4K / 2K ) |
| Dolby Vision |
: Yes ( 4K / 2K ) |
| Dolby Vision IQ |
: Yes ( 4K / 2K ) |
| AI Picture Pro |
: AI Picture Pro |
| Dimming |
: Pixel Dimming |
| Video Decoder AV1 |
: 4K@60P, 10Bit |
| Video Decoder VP9 |
: 4K@60P, 10Bit |
| Video Decoder HEVC |
: 4K@120P, 10Bit |
| Motion Pro |
: OLED Motion Pro |
| Ultra Luminance |
: Ultra Luminance Pro |
| Picture Processor |
: α9 Gen3 AI Processor 4K |
| Image Enhancing |
: Image Enhacing On SQM |
| AI Genre Selection |
: Yes ( SDR / HDR / Dolby HDR ) |
| Face Enhancing |
: AI Picture Pro - Face Enhancing |
| Dynamic Tone Mapping / Pro |
: HDR Dynamic Tone Mapping Pro |
| Picture Mode |
: Yes 10 Modes ( Vivid, Standard, Eco, Cinema, Sports, Game, HDR Effect, Filmmaker, ( ISF ) Expert ( Bright Room ), ( ISF ) Expert ( Dark Room )) |
|
| Audio |
| Audio Output ( RMS ) |
: 80 W ( 2 X 20 W L / R Speakers + 20 W Subwoofer + 2 X 10 W Up-Firing Speakers ) |
| Dolby Atmos Audio |
: Yes |
| Bluetooth Personal Audio |
: Yes |
| Built-in ONKYO Subwoofers |
: Yes |
| IMAX Enhanced Certification |
: Yes |
| DTS Processing |
: DTS Virtual : X |
| Dolby Processing |
: Dolby Atmos, Dolby Digital + |
| Speaker System |
: ONKYO 2.1.2 Speaker System |
| Speaker Type |
: Built-In ONKYO Up-Firing Speakers |
| Audio Passthrough |
: Dolby Atmos, Dolby Digital +, Dolby Digital, PCM |
|
| Audio Output ( RMS ) |
: 40 W ( WF : 20 W, 10 W Per Channel ) |
| Sound Share |
: Yes |
| Dolby Atmos |
: Yes |
| Clear Voice IV |
: Yes |
| LG Sound Sync |
: Yes |
| AI Acoustic Tuning |
: Yes |
| Bluetooth Surround Ready |
: Yes |
| Auto Notification ( Bluetooth Easy Paring ) |
: Yes |
| Speaker System |
: 2.2 Channel |
| Speaker Direction |
: Front Firing |
| AI Sound / Pro |
: AI Sound Pro |
| Surround Mode |
: OLED Surround |
| WiSA Speakers |
: Yes ( WiSA 2.0 Channel ) |
| Simultaneous Audio Output ( Optic and HP Output Jack Output ) |
: Yes ( Optical Output Or HP Support Model ) |
| Audio Codec |
: AC4, AC3 ( Dolby Digital ), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X ( Refer To Manual ) |
|
| Connectivity Options |
| HDMI 2.1 |
: 4 ( 1 eARC ) |
| USB 3.0 + 2.0 |
: 3 ( 3.0 X 1, 2.0 X 2 ) |
| Bluetooth |
: Yes |
| Ethernet / LAN |
: Yes |
| Chromecast Built-In |
: Yes |
| Audio Output Headphone |
: 1 Yes |
| RF Input ( NTSC, ATSC ) |
: 1 Yes |
| SPDIF Digital Audio Optical |
: 1 Yes |
| Wi-Fi |
: Wi-Fi 6 ( 802.11ax ) |
| AV Input |
: Composite Video + L & R Audio In ( Mini 3.5 mm Connector ) |
|
| HDMI 2.1 |
: 4 ( 1 Rear, 3 Side ) |
| USB 2.0 |
: 3 ( 2 Rear, 1 Side ) |
| Bluetooth 5.0 |
: Yes |
| Simplink ( HDMI CEC ) |
: Yes |
| Ethernet / LAN |
: Yes Rear |
| Headphone Out |
: Yes Rear |
| Optical Digital Audio Out ( SPDIF ) |
: Yes Rear |
| WiFi |
: Yes ( 802.11ac ) |
| Audio Return Channel ( eARC / ARC ) |
: eARC ( HDMI 2 ) |
| RF In |
: 2 ( Rear, RF / Sat ) |
| Composite In ( AV ) |
: Yes ( Rear, Gender Type ) |
| Line Out |
: Yes ( Rear, Headphone Out Common ) |
|
| Smart TV Features |
| Operating System |
: Google TV |
| Netflix |
: Yes |
| Disney+ |
: Yes |
| YouTube |
: Yes |
| Apple TV |
: Yes |
| YouTube TV |
: Yes |
| Apple Airplay2 |
: Yes |
| Backlit Voice Remote |
: Yes |
| Hands-Free Voice Control |
: Yes |
| Internet Applications |
: Netflix, HBO Max, Disney Plus, Hulu, YouTube |
| Works With |
: Amazon Alexa, Google Assistant, Apple HomeKit |
|
| Operating System |
: WebOS Smart TV |
| CPU |
: Quad |
| DIAL |
: Yes |
| ThinQ |
: Yes |
| LG Store |
: Yes |
| AI Home |
: Yes |
| ThinQ App |
: Yes |
| Art Gallery |
: Yes |
| Hotel Mode |
: Yes |
| Sports Alert |
: Yes |
| Wi-Fi TV On |
: Yes |
| 360° VR Play |
: Yes |
| Music Player |
: Yes |
| Screen Share |
: Yes |
| Quick Access |
: Yes |
| Web Browser |
: Yes |
| Intelligent Edit |
: Yes |
| Speech To Text |
: Yes |
| Music Discovery |
: Yes |
| LG Voice Search |
: Yes |
| Universal Control |
: Yes |
| Home Dashboard |
: Yes |
| TV On With Mobile |
: Yes |
| Mobile Connectivity |
: Yes |
| Network File Browser |
: Yes |
| Auto Device Detection |
: Yes |
| Related Content Search |
: Yes |
| AI Recommendation / AI |
: Yes |
| Bluetooth Low Energy On |
: Yes |
| Remote Voice Recognition |
: Yes |
| Block Access To Harmful Site |
: Yes |
| Intelligent Voice Recognition |
: Yes |
| Magic Remote Control |
: Built-In |
|
| Other Features |
| Design |
: Full View 360 Metal Bezel-Less Design / Elegant Edge-To-Edge Glass Design |
| Sleep Timer |
: Yes |
| Closed Caption |
: Yes |
| JPEG / MP3 For USB |
: Yes |
| Game Accelerator 240 |
: Yes |
| Auto Game Mode ( ALLM ) |
: Yes |
| Parental Control ( V -Chip ) |
: Yes |
| AMD FreeSync Premium Pro |
: Yes |
| Accessible Menu System ( CVAA ) |
: Yes |
| ATSC 3.0 NextGen TV Digital Tuner |
: Yes |
| Control Buttons |
: One Button |
| Tuner Type |
: ATSC, NTSC, Clear QAM |
| Multilingual On-Screen-Display |
: English, Spanish, French |
| Warranty |
: 1 Year Limited Warranty |
|
| Design |
: 4K Cinema Screen Design |
| Time Shift |
: Yes |
| HGiG Mode |
: Yes |
| Analog DVR |
: Yes |
| FreeSyncTM |
: Yes |
| EPG ( 8 Days ) |
: Yes |
| Teletext Page |
: Yes |
| Subtitle [ DVB ] |
: Yes |
| Auto Calibration |
: Yes |
| Digital Recording |
: Yes |
| G-Sync Compatible |
: Yes |
| Analog TV Reception |
: Yes |
| Time Machine ( DVR ) |
: Yes |
| Audio Description ( AD ) |
: Yes |
| Teletext (Top / Flof / List ) |
: Yes |
| Data Broadcasting ( Country Spec ) |
: Yes |
| Digital TV Reception ( Terrestrial, Cable, Satellite ) |
: Yes |
| Cable |
: DVB-C |
| Satellite |
: DVB-S2 |
| Terrestrial |
: DVB-T2 |
| Instant Game Response ( VRR / ALLM ) |
: Yes / Yes |
|
| General Details |
| Power Supply ( Voltage, Hz ) |
: AC 100V-240V 50/60Hz |
| Annual Power Consumption |
: 531 kWh/Y |
| Power Consumption Standby |
: < 0.5 W |
| Weight Without Stand |
: 33.02 Kg |
| Weight With Stand |
: 38.50 Kg |
| Package Weight |
: 48.98 Kg |
| Screw Size |
: M6 X 12 |
| VESA Walll Mount Pattern |
: 500 mm X 400 mm |
|
| Power Supply |
: AC 100 ~240 V 50-60 Hz |
| Standby Power Consumption |
: Under 0.5 W |
| Energy Standard |
: Yes |
| Energy Saving Mode |
: Yes |
| Illuminance Green Sensor |
: Yes |
|
| Supplied Accessories |
| Remote Control |
: Backlit Voice Remote Control |
| Power Cable |
: Yes |
| 2 X AAA Batteries |
: Yes |
| Warranty Info English |
: Yes |
| Quick Start Guide English |
: Yes |
|
| Remote Control |
: MR20 |
| User Manual |
: Yes |
| Component / AV Gender |
: - / Yes |
| Batteries |
: AA X 2EA |
| Power Cable |
: Yes ( TV Attached ) |
|
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Compare TCL 75QM851G with:
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Compare LG OLED77CXPVA 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 TVs come with smart platforms that support popular streaming apps and voice control features. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. TCL 75QM851G and LG OLED77CXPVA are well-equipped smart TVs that aim to provide a balance of picture quality, performance, and smart capabilities. Audio output differs between the two (80 W ( 2 X 20 W L / R Speakers + 20 W Subwoofer + 2 X 10 W Up-Firing Speakers ) vs 40 W ( WF : 20 W, 10 W Per Channel )), which can influence overall sound clarity and loudness. From a practical standpoint, both options provide a reliable viewing experience for most users. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. TCL 75QM851G features a 75 Inch (191 cm) screen while LG OLED77CXPVA comes with 77 Inch (195.58 cm), which can make a noticeable difference depending on your room size and viewing distance. Verdict: Choosing between TCL 75QM851G and LG OLED77CXPVA depends on your usage, whether you prioritize display quality, smoother motion, or smart features.
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