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Samsung QN75LST9DAFXZC
Rs.274,203.78

Samsung F-AE77S90CS10C
Rs.275,170.20
Model No QN75LST9DAFXZC F-AE77S90CS10C
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 : 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
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
Video
Backlight : 4K UHD NEO QLED
Anti Reflection : Yes
Filmmaker Mode : Yes
HDR Brightness Optimizer : Yes
AI Upscale : 4K AI Upscaling
Motion Technology : Motion Xcelerator
HDR : Neo Quantum HDR+
Contrast Enhancer : Real Depth Enhancer
AI HDR Remastering : Auto HDR Remastering
Micro Dimming : Ultimate UHD Dimming
Picture Engine : NQ4 AI Gen2 Processor
HDR 10+ : Yes ( Adaptive / Gaming )
Contrast : Quantum Matrix Technology
Backlight : 4K UHD OLED
HLG : Yes
Film Mode : Yes
AI Upscale : Yes
Picture Clarity : Yes
Anti Reflection : Yes
One Billion Color : Yes
Filmmaker Mode ( FMM ) : Yes
Smart Calibration : Basic
Viewing Angle : Ultra Viewing Angle
HDR : Quantum HDR OLED
Contrast Enhancer : Real Depth Enhancer
Contrast : Self-illuminating Pixels
HDR 10+ : Yes ( ADAPTIVE, GAMING )
Brightness / Color Detection : Brightness, Color Detection
Color : Perceptional Color Mapping
Motion Technology : Motion Xcelerator Turbo Pro
Picture Engine : Neural Quantum Processor 4K
Audio
Sound Output ( RMS ) : 40 W
360 Audio : Yes
Adaptive Sound : Yes
Speaker Type : 4 Channel
Sound Output ( RMS ) : 40 W
Woofer : Yes
Sound Wall : Yes
Dolby Atmos : Yes
Q-Symphony : Yes
Multiroom Link : Yes
Adaptive Sound+ : Yes
Sound Mirroring : Yes
Bluetooth Audio : Yes
Buds Auto Switch : Yes
Active Voice Amplifier : Yes
Object Tracking Sound Lite : Yes
Dual Audio Support ( Bluetooth ) : Yes
Speaker Type : 2.1 Channel
Connectivity Options
HDMI 2.1 : 3
USB-A : 1
Wi-Fi 5 : Yes
Bluetooth 5.2 : Yes
Ethernet / LAN : Yes
Ex-Link ( RS-232C ) : Yes
Anynet+ ( HDMI-CEC ) : Yes
Audio Out ( Mini Jack ) : Yes
Digitale Audio Out ( Optical ) : Yes
HDMI Audio Return Channel : eARC
High Frame Rate ( HDMI ) : 4K 120Hz ( For HDMI 1 / 2 / 3 )
RF In ( Terrestrial, Cable Input, Satellite Input ) : 1 / 1 ( Common Use For Terrestrial ) / 0
HDMI : 4
USB 2.0 : 2
WiFi5 : Yes
Bluetooth 5.2 : Yes
Ethernet / LAN : Yes
Anynet+ ( HDMI-CEC ) : 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
Operating System : Tizen™ Smart TV
Daily+ : Yes
Bixby : Yes
Apple AirPlay : Yes
Web Browser : Yes
Ambient Mode+ : Yes
Universal Guide : Yes
Samsung Health : Yes
Samsung TV Plus : Yes
SmartThings Hub, Matter Hub, IoT Sensor Functionality, Quick Remote : Yes
Built-in Voice Assistant : Alexa
NFT : Nifty Gateway
Multi-View : UpTo 2 Videos
Works With AI Speaker : Alexa, Google Assistant
Multi Device Experience : TV To Mobile, Mobile To TV, TV Initiate Mirroring, Sound Mirroring, Tap View, Wireless TV On
Operating System : Tizen™ Smart TV
Tap View : Yes
Easy Setup : Yes
App Casting : Yes
Wireless Dex : Yes
Media Home : Yes
SmartThings : Yes
Web Browser : Yes
Ambient Mode+ : Yes
Mobile Camera Support : Yes
Far-Field Voice Interaction : Yes
Video Communication : Google Meet
NFT : Nifty Gateway
Cloud Service : Microsoft 365
Multi-View : UpTo 2 Videos
Multi Device Experience : TV To Mobile, Mobile To TV, TV Initiate Mirroring, TV Sound To Mobile, Sound Mirroring, Wireless TV On
Bixby : US English, UK English, India English, Korean, French, German, Italian, Spanish, BR Portuguese ( Features Vary By Language )
Other Features
Design : Solid Metal Design
Front Color : Titan Black ( Hairline )
Slim Type : Normal
Bezel Type : SNB
EPG : Yes
V-Chip : Yes
IP Control : Yes
Analog Tuner : Yes
Digital Broadcasting : ATSC, ClearQAM
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, SeeColours, Colour 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
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
Design : Laser Slim Design
Stand Type : Simple Plus-Metal
Bezel Type : 4 Bezel-Less
Front Color : Titan Black
Stand Color : Titan Black
Slim Type : Top Slim
EPG : Yes
HGiG : Yes
TV Key : Yes
Time Shift : Yes
Analog Tuner : Yes
MBR Support : Yes
Extended PVR : Yes
ConnectShare™ : Yes
Triple Protection : Yes
Mini Map Zoom : Yes
Surround Sound : Yes
Caption ( Subtitle ) : Yes
Dynamic Black EQ : Yes
Game Motion Plus : Yes
Auto Game Mode ( ALLM ) : Yes
Super Ultra Wide Game View : Yes
Digital Broadcasting : DVB-T2S2
OSD Language : Local Languages
Freesync : FreeSync Premium
Motor Impaired Support : Slow Button Repeat
Hearing Impaired Support : Multi-Output Audio, Sign Language Zoom
Accessibillity - Voice Guide : UK English, France French, Korean, Russian, Hindi
Low Vision Support : Zoom Menu and Text, High Contrast, See Colors, Color Inversion, Grayscale, Picture Off, Magnification
Accessibility - Learn TV Remote / Learn Menu Screen : English, French, Spanish, Portuguese, Persian, Indonesian, Thai, Vitnamese, Arabic** Languages Are Supported If There Is A Language That Matches The OSD Language.English, French, Spanish, Portuguese, Persian, Indonesian, Thai, Vitnamese, Arabic** Languages Are Supported If There Is A Language That Matches The OSD Language.
General Details
Power Requirements : AC 110-120 V~50 / 60 Hz
Power Consumption Max : 485 W
Power Consumption Typical : 255 W
Power Consumption Standby : 0.5 W
Eco Sensor : Yes
Auto Power Off : Yes
Auto Power Saving : Yes
Weight Without Stand : 48.1 Kg
Weight Of Package Carton : 59 Kg
VESA Wall Mount Compatibility : 400 mm X 400 mm
Power Supply : AC100-240V 50 / 60Hz
Power Consumption : ‎470‎‎‎‎ W
Eco Sensor : Yes
Auto Power Off : Yes
Auto Power Saving : Yes
Weight Without Stand : ‎35.1‎ Kg
Weight With Stand : 37.8‎‎ Kg
Weight Of Package Carton : ‎49.1‎‎‎‎‎ Kg
VESA Spec : 400 mm X 300 mm
Supplied Accessories
Remote Controller Model : TM2365E
Power Cable : Yes
User Manual : Yes
Remote Control : TM2360E
E-Manual : Yes
Power Cable : Yes
User Manual : Yes
Webcam Support : Yes
Vesa Wall Mount Support : Yes
Full Motion Slim Wall Mount ( Y22 ) : Yes
Zigbee, Thread Module : Built-In

Compare Samsung QN75LST9DAFXZC with:

Compare Samsung F-AE77S90CS10C with:

Key Differences

Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. There is a difference in screen size (77 Inch (195.58 cm) vs 75 Inch (191 cm)), and a larger screen generally provides a more immersive viewing experience. 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 TVs provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. If you're comparing Samsung F-AE77S90CS10C and Samsung QN75LST9DAFXZC, both models come with modern features and are designed to deliver a solid viewing experience across different use cases.

Verdict: Both TVs are strong contenders, and your final choice should depend on your preference for screen size, motion performance, and smart features.