Best For
Best for Gaming
Samsung QN42S90FAEXZA
Better HDR Movie Experience
LG OLED42C54LA
Best Value
Samsung QN42S90FAEXZA
Best Smart TV Experience
LG OLED42C54LA
Best Overall Performance
Samsung QN42S90FAEXZA
The Samsung QN42S90FAEXZA and LG OLED42C54LA are premium 42-inch 4K OLED TVs designed for users who want outstanding picture quality, fast gaming performance, and advanced smart features. Both offer OLED panels, HDMI 2.1 connectivity, Dolby Atmos support, and smooth 120Hz refresh rates. The key differences lie in their HDR formats, gaming capabilities, smart platforms, and AI processing. Samsung focuses on ultra-high refresh rates and gaming enhancements, while LG offers Dolby Vision, WebOS, and broader gaming compatibility. Choosing between them depends on whether gaming performance or cinematic HDR quality matters more to you.
Verdict
The Samsung QN42S90FAEXZA is the better choice for competitive gamers thanks to its 4K 144Hz support, Motion Xcelerator technology, and extensive gaming tools. The LG OLED42C54LA is better suited for movie lovers and mixed entertainment with Dolby Vision, AI-enhanced picture processing, and excellent gaming support including G-Sync and Dolby Vision Gaming. Overall, Samsung offers the stronger all-around value for gamers, while LG excels for home cinema enthusiasts.
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| Model No |
OLED42C54LA |
QN42S90FAEXZA |
| TV Type |
Smart TV |
Smart TV |
| Screen Size |
42 Inch (107 cm) |
42 Inch (107 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 |
: 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 |
: 3.0 |
| 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, MPO |
|
| Video |
| Backlight |
: 4K UHD OLED |
| HLG |
: Yes |
| HDR10 |
: Yes |
| Dolby Vision |
: Yes |
| AI Picture Pro |
: Yes |
| Auto Calibration |
: Yes |
| Filmmaker Mode ™ |
: Yes |
| AI Brightness Control |
: Yes |
| Quick Media Switching ( QMS ) |
: Yes |
| OLED Dynamic Tone Mapping Pro |
: Yes |
| Wide Color Gamut |
: OLED Color |
| Motion |
: OLED Motion |
| Dimming Technology |
: Pixel Dimming |
| AI Genre Selection |
: Yes ( SDR, HDR ) |
| High Frame Rate ( HFR ) |
: 4K 120 Fps ( HDMI, USB ) |
| Picture Processor |
: α9 AI Processor 4K Gen8 |
| AI Upscaling |
: α9 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 |
: 4K UHD OLED |
| HLG |
: Yes |
| Film Mode |
: Yes |
| Anti Glare |
: Yes |
| Filmmaker Mode |
: Yes |
| EyeComfort Mode |
: Yes |
| Smart Calibration |
: Basic |
| HDR |
: OLED HDR |
| Color Booster |
: Color Booster Pro |
| Viewing Angle |
: Ultra Viewing Angle |
| AI Upscale |
: 4K AI Upscaling Pro |
| Contrast Enhancer |
: Real Depth Enhancer |
| Motion Rate |
: 120Hz ( Up To 144Hz ) |
| Contrast |
: Self-illuminating Pixels |
| Picture Engine |
: NQ4 AI Gen3 Processor |
| AI HDR Remastering |
: Auto HDR Remastering |
| AI Motion Enhancer |
: AI Motion Enhancer Pro |
| Motion Technology |
: Motion Xcelerator 144Hz |
| HDR 10+ |
: Yes ( Adaptive / Gaming ) |
|
| Audio |
| Audio Output ( RMS ) |
: 20 W |
| Dolby Atmos |
: Yes |
| LG Sound Sync |
: Yes |
| WOW Orchestra |
: 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 ( 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 ) |
|
| Sound Output ( RMS ) |
: 20 W |
| 360 Audio |
: Yes |
| Dolby Atmos |
: Yes |
| Bluetooth Audio |
: Yes |
| Q-Symphony Pro |
: Yes |
| Adaptive Sound Pro |
: Yes |
| Active Voice Amplifier Pro |
: Yes |
| DTV Sound System |
: Dolby |
| Object Tracking Sound |
: OTS Lite |
| Speaker Type |
: 2 Channel |
|
| Connectivity Options |
| 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 ) |
|
| HDMI 2.1 |
: 4 |
| USB-A |
: 3 |
| Wi-Fi 5 |
: Yes |
| Bluetooth 5.3 |
: Yes |
| Ethernet / LAN |
: Yes |
| Ex-Link ( RS-232C ) |
: Yes |
| Anynet+ ( HDMI-CEC ) |
: Yes |
| Audio Out ( Mini Jack ) |
: Yes |
| Digital Audio Out ( Optical ) |
: Yes |
| HDMI Audio Return Channel |
: eARC |
| HDMI Maximum Input Rate |
: 4K 144Hz ( For HDMI 1 / 2 / 3 / 4 ) |
| RF In ( Terrestrial, Cable Input, Satellite Input ) |
: 1 / 1 ( Common Use For Terrestrial ) / 0 |
|
| Smart TV Features |
| Operating System |
: WebOS 25 Smart TV |
| Voice ID |
: Yes |
| Home Hub |
: Yes |
| AI Chatbot |
: Yes |
| Multi View |
: Yes |
| Google Cast |
: Yes |
| LG Channels |
: Yes |
| Always Ready |
: Yes |
| Full Web Browser |
: Yes |
| Google Home, Hub |
: Yes |
| USB Camera Compatible |
: Yes |
| Works With Apple Home |
: Yes |
| Hands-Free Voice Control |
: Yes |
| Works With Apple Airplay |
: Yes |
| Intelligent Voice Recognition |
: Yes |
| Magic Remote Control Built-In |
: Yes |
| Smartphone Remote App |
: Yes ( LG ThinQ ) |
|
| Operating System |
: Tizen™ Smart TV |
| Bixby |
: Yes |
| Daily+ |
: Yes |
| Karaoke Mic |
: Yes |
| Apple AirPlay |
: Yes |
| Screen Vitals |
: Yes |
| Web Browser |
: Yes |
| Multi Control |
: Yes |
| Storage Share |
: Yes |
| Ambient Mode |
: Yes |
| Universal Guide |
: Yes |
| Samsung Health |
: Yes |
| Workout Tracker |
: Yes |
| Samsung TV Plus |
: Yes |
| Far-Field Voice Interaction |
: Yes |
| SmartThings Hub, Matter Hub, IoT-Sensor Functionality, Quick Remote |
: Yes |
| Built-In Voice Assistant |
: Alexa |
| ConnecTime |
: Yes ( US Only ) |
| Live Translate |
: Yes ( US Only ) |
| Click To Search |
: Yes ( US Only ) |
| Multi-View |
: UpTo 2 Videos |
| Daily Board |
: Voice/User Detection |
| Works With AI Speaker |
: Alexa, Google Assistant |
| Multi Device Experience |
: TV To Mobile, Mobile To TV, TV Initiate Mirroring, Sound Mirroring, Wireless TV On, Tap View |
|
| Other Features |
| Design |
: Ultra Slim Design |
| Gray Scale |
: Yes |
| Invert Colors |
: Yes |
| High Contrast |
: Yes |
| Analog TV Reception |
: Yes |
| Limited Warranty |
: 1 Year Parts & Labor |
| Digital TV Reception |
: DVB-T2/T ( Terrestrial ), DVB-C ( Cable ), DVB-S2/S ( Satellite ) |
|
| Design |
: Laser Slim Design |
| Front Color |
: Graphite Black |
| Stand Type |
: Simple Blade |
| Bezel Type |
: 4 Bezel-Less |
| Stand Colour |
: Black |
| EPG |
: Yes |
| V-Chip |
: Yes |
| IP Control |
: Yes |
| Analog Tuner |
: Yes |
| MBR Support |
: Yes |
| ConnectShare™ |
: Yes |
| Country of Origin |
: Mexico |
| Digital Broadcasting |
: ATSC, Clear QAM |
| OSD Languages |
: English, Spanish, French |
| Motor Impaired Support |
: Slow Button Repeat, Remote Control App. For All |
| Low Vision Support |
: Audio Subtitles, Magnification, Audio Description, Zoom Menu & Text, High Contrast, SeeColors, Color Inversion, Grayscale, Auto Picture Off |
| Hearing Impaired Support |
: Closed Caption ( Subtitle ), Multi-Output Audio, Caption Position, Sign Language Zoom, Separate Closed Caption, Sign Language Guide, Auto Caption Position |
| Accessibility - Voice Guide |
: Czech ( Czech Republic ), Danish ( Denmark ), Dutch ( Netherlands ), English ( US ), Finnish ( Finland ), French ( Canada ), German ( Germany ), Greek ( Greece ), Hungarian ( Hungary ), Italian ( Italy ), Korean ( Korea ), Norwegian ( Norway ), Polish ( Poland ). Portuguese ( Portugal ), Romanian ( Romania ), Slovak ( Slovakia ), Spanish ( Mexico ), Swedish ( Sweden ) |
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| General Details |
| Power Supply |
: AC 100~240V 50-60Hz |
| Standby Power Consumption |
: Under 0.5 W |
| Energy Star Rating |
: 1 |
| Weight Without Stand |
: 9.8 Kg |
| Weight With Stand |
: 10.1 Kg |
| Packaging Weight |
: 12.7 Kg |
| VESA Mounting |
: 300 mm X 200 mm |
|
| Power Requirements |
: AC 110-120V~ 50 / 60Hz |
| Power Consumption Max |
: 175 W |
| Power Consumption Typical |
: 80 W |
| Power Consumption Standby |
: 0.5 W |
| Eco Sensor |
: Yes |
| Auto Power Off |
: Yes |
| Auto Power Saving |
: Yes |
| Weight Without Stand |
: 8.30 Kg |
| Weight With Stand |
: 8.70 Kg |
| Weight Of Package Carton |
: 11.79 Kg |
| VESA Wall Mount Compatibility |
: 200 mm X 200 mm |
|
| Supplied Accessories |
| Remote Control |
: Magic Remote Control MR25 |
| Power Cable |
: Yes ( Attached ) |
|
| Remote Controller Type |
: BT Solar Cell Remote |
| Remote Controller Code No. |
: BN59-01480A |
| Remote Controller Model |
: TM2560E |
| Zigbee, Thread Module |
: Built-In |
| Power Cable Connector Type |
: 2-Pin |
| Power Cable |
: Yes |
| User Manual |
: Yes |
| Slim Fit Cam Support |
: Yes |
| Slim Fit Wall-Mount Support |
: Yes |
| Full Motion Slim Wall Mount Support ( Y22 ) |
: Yes |
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Compare Samsung QN42S90FAEXZA with:
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Frequently Asked Questions
Which product is better for gaming?
The Samsung QN42S90FAEXZA is better for gaming with support for up to 4K 144Hz, FreeSync Premium, VRR, ALLM, and advanced gaming features. The LG also performs exceptionally well but is limited to 4K 120Hz.
Does Samsung QN42S90FAEXZA support Dolby Atmos?
Yes. The Samsung QN42S90FAEXZA supports Dolby Atmos along with Q-Symphony Pro and Adaptive Sound Pro for an immersive audio experience.
Which TV offers better HDR support?
The LG OLED42C54LA offers broader HDR compatibility with Dolby Vision, HDR10, and HLG, while Samsung supports OLED HDR and HDR10+ but not Dolby Vision.
Which TV has the better smart platform?
It depends on preference. Samsung uses Tizen with SmartThings integration and Gaming Hub, while LG runs WebOS 25 with AI Chatbot, Google Cast, and Magic Remote support.
Which TV is better for watching movies?
The LG OLED42C54LA is the better choice for movie enthusiasts thanks to Dolby Vision, Dynamic Tone Mapping Pro, and AI picture enhancements that optimize HDR content.
Do both TVs include HDMI 2.1 ports?
Yes. Both models provide four HDMI 2.1 ports, making them excellent choices for connecting multiple gaming consoles and high-performance devices.
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