| Model No |
QN75Q72AAFXZC |
OLED77C55LA |
| 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 |
60 Hz |
120 Hz |
| Viewing Angle |
178°/178° |
178°/178° |
| USB |
| USB Version |
: 2.0 |
| Supported Audio Formats |
: MP3, FLAC, OGG, WMA, WAV, MIDI, APE, AIFF, ALAC, M4A, MPA, AAC |
| Supported Video Formats |
: AVI, MKV, MP4, ASF, MOV, 3GP, FLV, VRO, VOB, SVI |
| Supported Picture Formats |
: JPG, JPEG, PNG, BMP |
|
| 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 |
|
| Video |
| Backlight |
: 4K UHD QLED |
| Film Mode |
: Yes |
| AI Upscale |
: Yes |
| Filmmaker Mode |
: Yes |
| Adaptive Picture |
: Yes |
| Contrast |
: Mega Contrast |
| HDR |
: Quantum HDR |
| Compatible With HDR 10+ |
: Certified ( HDR10+ ) |
| Viewing Angle |
: Wide Viewing Angle |
| Picture Engine |
: Quantum Processor 4K |
| Micro Dimming |
: Ultimate UHD Dimming |
| Colour |
: 100% Colour Volume With Quantum Dot |
|
| Backlight |
: 4K UHD OLED |
| HLG |
: Yes |
| HDR10 |
: Yes |
| Dolby Vision |
: Yes |
| AI Picture Pro |
: Yes |
| Filmmaker Mode™ |
: Yes |
| AI Brightness Control |
: Yes |
| Quick Media Switching ( QMS ) |
: Yes |
| OLED Dynamic Tone Mapping Pro |
: Yes |
| Wide Color Gamut |
: OLED Colour |
| Motion |
: OLED Motion |
| Dimming Technology |
: Pixel Dimming |
| AI Genre Selection |
: Yes ( SDR / HDR ) |
| Picture Processor |
: α9 AI Processor 4K Gen8 |
| AI Upscaling |
: α9 AI Super Upscaling 4K |
| Refresh Rate |
: 120Hz Native ( VRR 144Hz ) |
| High Frame Rate ( HFR ) |
: 4K 120 Fps ( HDMI, RF, USB ) |
| Picture Mode |
: 10 Modes ( Personalized Picture Wizard, Vivid, Standard, Eco, Cinema, Sports, Game, Filmmaker, ( ISF ) Expert ( Bright Room ), ( ISF ) Expert ( Dark Room )) |
|
| Audio |
| Sound Output ( RMS ) |
: 20 W |
| Dolby Decoder |
: Yes |
| Q-Symphony Lite |
: Yes |
| Active Voice Amplifier |
: Yes |
| Object Tracking Sound |
: OTS Lite |
| Speaker Type |
: 2 Channel |
|
| Audio Output ( RMS ) |
: 40 W |
| Dolby Atmos |
: Yes |
| LG Sound Sync |
: Yes |
| WOW Orchestra |
: Yes |
| AI Acoustic Tuning |
: Yes |
| Sound Mode Share |
: Yes |
| Simultaneous Audio Output |
: Yes |
| Speaker System |
: 2.2 Channel |
| Speaker Direction |
: Down Firing |
| Bluetooth Surround Ready |
: Yes ( 2 Way Playback ) |
| WiSA Ready |
: Yes ( Up To 2.1 Channel ) |
| Clear Voice Pro |
: Yes ( AI Voice Remastering ) |
| AI Sound |
: α9 AI Sound Pro ( Virtual 11.1.2 Up-Mix ) |
| Audio Codec |
: AC4, AC3 ( Dolby Digital ), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X ( Refer To Manual ) |
|
| Connectivity Options |
| HDMI 2.0 |
: 4 |
| USB 2.0 |
: 2 |
| Wi-Fi 5 |
: Yes |
| Bluetooth 4.2 |
: Yes |
| Ethernet / LAN |
: Yes |
| Ex-Link ( RS-232C ) |
: Yes |
| HDMI Quick Switch |
: Yes |
| Digitale Audio Out ( Optical ) |
: Yes |
| HDMI A / Return Ch. Support |
: Yes |
| Enhanced Audio Return Channel ( eARC ) |
: Yes |
| RF In ( Terrestrial, Cable Input, Satellite Input ) |
: 1 / 1 ( Common Use For Terrestrial ) / 0 |
|
| HDMI 2.1 |
: 4ea ( Supports 4K 120Hz, eARC, VRR, ALLM, QMS ( 4 Port )) |
| USB 2.0 |
: 3ea |
| Ethernet / LAN |
: 1ea |
| RF Input ( Antenna / Cable ) |
: 2ea |
| Optical Digital Audio Out ( SPDIF ) |
: 1ea |
| Wi-Fi 6 |
: Yes |
| Bluetooth 5.3 |
: Yes |
| Simplink ( HDMI CEC ) |
: Yes |
| HDMI Audio Return Channel |
: eARC ( HDMI 2 ) |
| CI Slot |
: 1ea ( Except For UK,Ireland ) |
|
| Smart TV Features |
| Operating System |
: Tizen™ Smart TV |
| Alexa Built-In |
: Yes |
| Ambient Mode+ |
: Yes |
| Samsung Health |
: Yes |
| Samsung TV Plus |
: Yes |
| Works With Alexa |
: Yes |
| Samsung SMART TV |
: Yes |
| TV To Mobile - Mirroring |
: Yes |
| Far-Field Voice Interaction |
: Yes |
| SmartThings Hub / Matter Hub / IoT-Sensor Functionality / Quick Remote |
: Yes |
| Universal Guide |
: Yes ( US Only ) |
| Multi-View |
: UpTo 2 Videos |
| Bixby |
: US English, UK English, India English, Korean, French, German, Italian, Spanish, BR Portuguese ( Features Vary By Language ) |
|
| Operating System |
: WebOS 25 Smart TV |
| Voice ID |
: Yes |
| Multi View |
: Yes |
| Home Hub |
: Yes |
| AI Chatbot |
: Yes |
| Google Cast |
: Yes |
| LG Channels |
: Yes |
| Always Ready |
: Yes |
| Full Web Browser |
: Yes |
| Google Home, Hub |
: Yes |
| Works With Apple Home |
: Yes |
| USB Camera Compatible |
: Yes |
| Works With Apple Airplay |
: Yes |
| Hands-Free Voice Control |
: Yes |
| Intelligent Voice Recognition |
: Yes |
| Magic Remote Control |
: Built-In |
| The Security Update Is Supported Until |
: 31/12/2029 |
| Smartphone Remote App |
: Yes ( LG ThinQ ) |
|
| Other Features |
| Design |
: AirSlim Design |
| Stand Type |
: Simple Plus-Wide |
| Bezel Type |
: 3 Bezel-Less |
| Front Color |
: Black |
| Stand Color |
: Black |
| Analog Tuner |
: Yes |
| IPv6 Support |
: Yes |
| Digital Broadcasting |
: ATSC, ClearQAM |
|
| Design |
: Ultra Slim Design |
| Gray Scale |
: Yes |
| Invert Colors |
: Yes |
| High Contrast |
: Yes |
| Analog TV Reception |
: Yes |
| Digital TV Reception |
: DVB-T2/T ( Terrestrial ), DVB-C ( Cable ), DVB-S2/S ( Satellite ) |
|
| General Details |
| Power Supply |
: AC 110-120 V 50 / 60 Hz |
| Power Consumption ( Max ) |
: 305 W |
| Power Consumption ( Typical ) |
: 86 W |
| Power Consumption Standby |
: 0.5 W |
| Eco Sensor |
: Yes |
| Weight Without Stand |
: 32.1 Kg |
| Weight With Stand |
: 33.4 Kg |
| Weight Of Package Carton |
: 44 Kg |
|
| Power Supply |
: AC 100~240V 50-60Hz |
| Power Consumption Standby |
: Under 0.5 W |
| Weight Without Stand |
: 23.5 Kg |
| Weight With Stand |
: 27.1 Kg |
| Packaging Weight |
: 38.5 Kg |
| VESA Mounting |
: 300 mm X 200 mm |
|
| Supplied Accessories |
| Remote Controller Model |
: TM2180E |
| E-Manual |
: Yes |
| Power Cable |
: Yes |
| User Manual |
: Yes |
| Samsung Smart Control |
: Yes |
| Vesa Wall Mount Compatible |
: Yes |
|
| Remote Control |
: Magic Remote MR25GA, MR25GB ( UK, Italy ) |
| Power Cable |
: Yes ( TV Attached ) |
|
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Compare Samsung QN75Q72AAFXZC with:
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Compare LG OLED77C55LA with:
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Key Differences
From a practical standpoint, both options provide a reliable viewing experience for most users. 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. Samsung QN75Q72AAFXZC and LG OLED77C55LA are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Samsung QN75Q72AAFXZC and LG OLED77C55LA offer different motion rates (60 Hz vs 120 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. There is a difference in screen size (75 Inch (191 cm) vs 77 Inch (195.58 cm)), and a larger screen generally provides a more immersive viewing experience. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Verdict: Both TVs are strong contenders, and your final choice should depend on your preference for screen size, motion performance, and smart features.
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