| Model No |
QN75LST7TAFXZA |
QN77S90DAFXZC |
| 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 |
240 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, SVAF, WEBM, RMVB |
| Supported Video Formats |
: AVI, MKV, MP4, ASF, MOV, 3GP, FLV, VRO, VOB, SVI |
| Supported Picture Formats |
: JPG, JPEG, PNG, BMP, MPO |
|
| 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, MPO |
|
| Video |
| Backlight |
: QLED |
| 4K UHD Resolution |
: Yes |
| HDR |
: Yes |
| Adaptive Picture |
: Yes |
| Film Mode |
: Yes |
| Direct Full Array 16X |
: Yes |
| Quantum HDR 32X |
: Yes |
| AI Upscale |
: 4K Upscaling |
| Picture Processor |
: Quantum Processor 4K |
| Color |
: 100% Color Volume with Quantum Dot* |
| Viewing Angle |
: Wide Viewing Angle with Anti-GlareViewing Angle |
|
| Backlight |
: 4K UHD OLED |
| Film Mode |
: Yes |
| Anti Reflection |
: Yes |
| Filmmaker Mode |
: Yes |
| Smart Calibration |
: Basic |
| HDR |
: OLED HDR+ |
| AI Upscale |
: 4K AI Upscaling |
| Viewing Angle |
: Ultra Viewing Angle |
| Contrast |
: Self-illuminating Pixels |
| Picture Engine |
: NQ4 AI Gen2 Processor |
| Compatible With HDR 10+ |
: Yes ( Adaptive / Gaming ) |
| Motion Technology |
: Motion Xcelerator 144Hz |
| Colour |
: Perceptional Color Mapping |
|
| Audio |
| Sound Output ( RMS ) |
: 20 W |
| Dolby® Digital Plus |
: Yes |
| Multiroom Link |
: Yes |
| Bluetooth Headset Support |
: Yes |
| Speaker Type |
: 2 Channel |
|
| Sound Output ( RMS ) |
: 40 W |
| Dolby Atmos |
: Yes |
| Q-Symphony |
: Yes |
| Bluetooth Audio |
: Yes |
| Active Voice Amplifier |
: Yes |
| Object Tracking Sound |
: OTS Lite |
| Speaker Type |
: 2.1 Channel |
|
| Connectivity Options |
| HDMI |
: 3 |
| USB |
: 1 |
| Ethernet / LAN |
: Yes |
| Digital Audio Out ( Optical ) |
: Yes |
| Audio Return Channel Support ( Via HDMI Port ) |
: Yes |
| Wi-Fi Connectivity |
: Yes |
| Audio Out ( Mini Jack ) |
: Yes |
| Terrestrial / RF input |
: 1 / 1 ( Common Use for Terrestrial ) / 0 |
|
| HDMI 2.1 |
: 4 |
| USB-A 2.0 |
: 2 |
| Wi-Fi 5 |
: Yes |
| Bluetooth 5.2 |
: Yes |
| Ethernet / LAN |
: Yes |
| Ex-Link ( RS-232C ) |
: Yes |
| Digital Audio Out ( Optical ) |
: Yes |
| HDMI Audio Return Channel |
: eARC |
| HDMI ( High Frame 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 |
| Smart TV |
: Smart TV Powered by Tizen |
| TV To Mobile - Mirroring |
: Yes |
| Mobile To TV - Mirroring, DLNA |
: Yes |
| Analog Tuner |
: Yes |
| Eco Sensor |
: Yes |
| SmartThings App Support |
: Yes |
| SmartThings |
: Yes |
| USB HID Support |
: Yes |
| Outdoor Optimized QLED Picture |
: Yes |
| Digital Clean View |
: Yes |
| Weather-Resistant Durability IP55 Rated |
: Yes |
| DTV Tuner |
: ATSC / ClearQAM |
| Digital Broadcasting |
: ATSC / ClearQAM |
| Game Mode |
: Yes ( Real Game Enhancer+ ) |
|
| Operating System |
: Tizen™ Smart TV |
| Bixby |
: Yes |
| Screen Vitals |
: Yes |
| Media Home |
: Yes |
| Ambient Mode+ |
: Yes |
| Universal Guide |
: Yes |
| Samsung Health |
: Yes |
| Samsung TV Plus |
: Yes |
| Far-Field Voice Interaction |
: Yes |
| Smart Things Hub / Matter Hub / IoT-Sensor Funtionality |
: Yes |
| Built-in Voice Assistant |
: Alexa |
| Multi-View |
: Up To 2 Videos |
| 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 |
: Solid Metal Design |
| Stand Type |
: None |
| Color |
: Titan Black |
|
| Design |
: Laser Slim Design |
| Stand Type |
: Simple Plus Blade |
| Front Color |
: Graphite Black |
| Bezel Type |
: 4 Bezel-Less |
| Stand Colour |
: Space Titan |
| HGiG |
: Yes |
| Gaming Hub |
: Yes |
| Analog Tuner |
: Yes |
| ConnectShare™ |
: Yes |
| Mini Map Zoom |
: Yes |
| Surround Sound |
: Yes |
| Dynamic Black EQ |
: Yes |
| Game Motion Plus |
: Yes |
| Auto Game Mode ( ALLM ) |
: Yes |
| Super Ultra Wide Game View |
: Yes |
| Zigbee / Thread Module |
: Built-In |
| Digital Broadcasting |
: ATSC / ClearQAM |
| FreeSync |
: FreeSync Premium |
| Motor Impaired Support |
: Slow Button Repeat, Remote Control App. For All |
| Hearing Impaired Support |
: Closed Caption ( Subtitle ), Multi-Output Audio, Caption Position, Sign Language Zoom, Separate Closed Caption, Sign Language Guide, Auto Caption Position |
| Low Vision Support |
: Audio Subtitles ( AU,KR,UK,US Only ), Magnification, Audio Description, Zoom Menu and Text, High Contrast, SeeColors, Color Inversion, Grayscale, Picture Off |
| Accessibillity - Voice Guide |
: US English, Mexico Spanish, Canada French, Finnish, German, Greek, Hungarian, Italian, Norwegian, Polish, Portugal Portuguese, Romanian, Slovak, Swedish, Czech, Danish, Dutch, Korean |
|
| General Details |
| Power Requirements |
: AC 110-120 V 50/60 Hz |
| Maximum Power Consumption |
: 550 W |
| Typical Power Consumption |
: 215 W |
| Power Consumption Standby |
: 0.5 W |
| Weight Without Stand |
: 50.30 Kg |
| Weight Of Package Carton |
: 61.77 Kg |
|
| Power Requirements |
: AC 110-120V~ 50/60Hz |
| Power Consumption Max |
: 475 W |
| Power Consumption Typical |
: 135 W |
| Power Consumption Standby |
: 0.5 W |
| Eco Sensor |
: Yes |
| Auto Power Off |
: Yes |
| Auto Power Saving |
: Yes |
| Weight Without Stand |
: 34.8 Kg |
| Weight With Stand |
: 36.6 Kg |
| Weight Of Package Carton |
: 46.8 Kg |
| VESA Wall Mount Compatibility |
: 400 mm X 300 mm |
|
| Supplied Accessories |
| Remote Control |
: TM2095A |
| Batteries |
: Yes |
| User Manual |
: Yes |
| E-Manual |
: Yes |
| Power Cable |
: Yes |
| Clean Cable Solution® |
: Yes |
| Vesa Wall Mount Compatibility |
: Yes |
|
| Solar Cell Remote Control |
: TM2360E |
| Power Cable |
: Yes |
| User Manual |
: Yes |
| Slim Fit Cam Compatible |
: Yes |
| Full Motion Slim Wall Mount Compatible ( Y22 ) |
: Yes |
|
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Compare Samsung QN75LST7TAFXZA with:
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Compare Samsung QN77S90DAFXZC with:
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Key Differences
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 models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. If you're comparing Samsung QN75LST7TAFXZA and Samsung QN77S90DAFXZC, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both TVs come with smart platforms that support popular streaming apps and voice control features. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. Samsung QN75LST7TAFXZA and Samsung QN77S90DAFXZC offer different motion rates (240 Hz vs 120 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. 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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ALERT
