Best For
Best for Smart Features
LG 65UA8450PSA
Better Sound Quality
LG 65UA8450PSA
Best for Samsung Ecosystem Users
Samsung UA65U8400FULXL
Best for Gaming Features
LG 65UA8450PSA
Best Value
LG 65UA8450PSA
The Samsung UA65U8400FULXL and LG 65UA8450PSA are two feature-rich 65-inch 4K smart TVs designed for movies, streaming, and casual gaming. Both offer 4K resolution, HDR support, 60Hz refresh rates, VRR, ALLM, and modern smart TV platforms. Samsung focuses on its Crystal Processor 4K, SmartThings ecosystem, and Object Tracking Sound Lite, while LG counters with the newer α7 AI Processor 4K Gen8, WebOS 25, AI-powered picture and sound enhancements, and the popular Magic Remote. Choosing between them comes down to whether you prioritize smart features, picture processing, and ecosystem integration.
Verdict
The LG 65UA8450PSA is the stronger overall package thanks to its newer α7 AI Processor 4K Gen8, Dynamic Tone Mapping, AI Sound Pro, Magic Remote, and Game Optimizer features. It delivers a more refined smart TV experience and better content personalization. The Samsung UA65U8400FULXL remains an excellent choice for users invested in the Samsung ecosystem, offering SmartThings integration, Q-Symphony support, and reliable picture quality. For most buyers, however, LG provides better overall value and smarter features.
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| Model No |
65UA8450PSA |
UA65U8400FULXL |
| TV Type |
Smart TV |
Smart TV |
| Screen Size |
65 Inch (164 cm) |
65 Inch (164 cm) |
| Resolution |
4K 3840 x 2160 |
4K 3840 x 2160 |
| Aspect Ratio |
16:9 |
16:9 |
| Motion Rate |
60 Hz |
60 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 |
: 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, JPS, MPO |
|
| Video |
| BackLight |
: 4K UHD Direct LED |
| HLG |
: Yes |
| HDR10 |
: Yes |
| Auto Calibration |
: Yes |
| Filmmaker Mode ™ |
: Yes |
| Dynamic Tone Mapping |
: Yes |
| Upscaling |
: 4K Super Upscaling |
| Picture Processor |
: α7 AI Processor 4K Gen8 |
| 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 Crystal LED |
| HDR |
: Yes |
| Color Booster |
: Yes |
| Contrast Enhancer |
: Yes |
| Filmmaker Mode ( FMM ) |
: Yes |
| HDR 10+ |
: Support |
| AI Upscale |
: 4K Upscaling |
| Contrast |
: Mega Contrast |
| Motion Technology |
: Motion Xcelerator |
| Picture Engine |
: Crystal Processor 4K |
|
| Audio |
| Audio Output ( RMS ) |
: 20 W |
| LG Sound Sync |
: Yes |
| WOW Orchestra |
: Yes |
| Sound Mode Share |
: Yes |
| AI Acoustic Tuning |
: Yes |
| Simultaneous Audio Output |
: Yes |
| Speaker Direction |
: Down Firing |
| Speaker System |
: 2.0 Channel |
| Bluetooth Surround Ready |
: Yes ( 2 Way Playback ) |
| Clear Voice Pro |
: Yes ( Auto Volume Leveling ) |
| AI Sound |
: α7 AI Sound Pro ( Virtual 9.1.2 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 |
| Q-Symphony |
: Yes |
| Adaptive Sound |
: Yes |
| Object Tracking Sound |
: OTS Lite |
| Speaker Type |
: 2.0 Channel |
|
| Connectivity Options |
| HDMI ( 2.0 ) |
: 3ea ( Supports eARC, ALLM ) |
| USB ( 2.0 ) |
: 1ea |
| Ethernet / LAN |
: 1ea |
| RF Input ( Antenna, Cable ) |
: 1ea |
| Optical Digital Audio Out ( SPDIF ) |
: 1ea |
| Wi-Fi 5 |
: Yes |
| Bluetooth® 5.0 |
: Yes |
| HDMI-CEC ( Simplink ) |
: Yes |
| HDMI Audio Return Channel |
: eARC ( HDMI 2 ) |
|
| HDMI ( 2.0 ) |
: 3 |
| USB A ( 2.0 ) |
: 1 |
| Bluetooth 5.2 |
: Yes |
| HDMI Audio Return Channel |
: eARC / ARC |
| High Frame Rate ( HFR ) |
: 4K 60Hz ( For HDMI 1 / 2 / 3 ) |
| RF In ( Terrestrial, Cable Input ) |
: 1 / 1 ( Common Use For Terrestrial ) / 1 |
|
| Smart TV Features |
| Operating System |
: WebOS 25 Smart TV |
| Voice ID |
: Yes |
| AI Chatbot |
: Yes |
| Home Hub |
: Yes |
| Google Cast |
: Yes |
| Full Web Browser |
: Yes |
| Google Home, Hub |
: Yes |
| Works With Apple Home |
: Yes |
| USB Camera Compatible |
: Yes |
| Works With Apple Airplay |
: Yes |
| Intelligent Voice Recognition |
: Yes |
| Magic Remote Control |
: Built-In |
| Smartphone Remote App |
: Yes ( LG ThinQ ) |
| Content Partners |
: Netflix, Max, Disney+, YouTube, Prime Video, ESPN, Apple TV, Sling TV & More............... |
|
| Operating System |
: Tizen™ Smart TV |
| Bixby |
: Yas |
| Daily+ |
: Yas |
| Apple AirPlay |
: Yas |
| Storage Share |
: Yas |
| SmartThings Hub, Matter Hub, IoT-Sensor Functionality, Quick Remote |
: Yes |
| Built-In Voice Assistant |
: Alexa ( IN Only ) |
| Universal Guide |
: Yes ( India Only ) |
| Samsung TV Plus |
: Yes ( India Only ) |
| Works With AI Speaker |
: Alexa ( IN Only ), Google Assistant ( IN Only ) |
| Multi Device Experience |
: Mobile To TV, Sound Mirroring, Wireless TV On |
|
| Other Features |
| Design |
: Sleek & 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 ) |
|
| Design |
: Slim Look Design |
| Stand Type |
: Flat Feet Narrow |
| Bezel Type |
: 3 Bezel-Less |
| Front Color |
: Black |
| Stand Color |
: Black |
| EPG |
: Yes |
| TV Key |
: Yes |
| IP Control |
: Yes |
| Analog Tuner |
: Yes |
| Country of Origin |
: India |
| Digital Broadcasting |
: T2CS2 |
| Accessibillity - Voice Guide |
: English ( UK ), Hindi ( India ) |
|
| General Details |
| Power Supply |
: AC 100~240V 50-60Hz |
| Power Consumption |
: 200 - 250 W |
| Power Consumption Standby |
: Under 0.5 W |
| TV Weight Without Stand |
: 16.5 Kg |
| TV Weight With Stand |
: 16.7 Kg |
| Packaging Weight |
: 22.4 Kg |
| VESA Mounting |
: 300 mm X 200 mm |
|
| Power Supply |
: AC 220-240V~ 50/60Hz |
| Power Consumption Max |
: 165 W |
| Power Consumption Standby |
: 0.5 W |
| Energy Efficiency Class |
: 3 |
| Eco Sensor |
: Yes |
| Auto Power Saving |
: Yes |
| Weight Without Stand |
: 15.9 Kg |
| Weight With Stand |
: 16.4 Kg |
| Weight Of Package Carton |
: 23.0 Kg |
| VESA Spec |
: 400 mm X 300 mm |
|
| Supplied Accessories |
| Remote Control |
: Magic Remote MR25 |
| Power Cable |
: Yes ( Detachable ) |
|
| Remote Control |
: TM2280A |
| Power Cable |
: Yes |
| User Manual |
: Yes |
| No Gap Wall-Mount ( Y21 VESA ) |
: Yes |
| Full Motion Slim Wall Mount ( Y22 ) |
: Yes |
| Zigbee, Thread Module |
: Dongle Support |
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Compare LG 65UA8450PSA with:
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Compare Samsung UA65U8400FULXL with:
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Frequently Asked Questions
Which product is better for gaming?
The LG 65UA8450PSA is slightly better for gaming thanks to its Game Optimizer dashboard alongside VRR, ALLM, and HGiG support.
Does Samsung UA65U8400FULXL support Dolby Atmos?
The specifications mention Q-Symphony, Adaptive Sound, and OTS Lite, but Dolby Atmos support is not explicitly listed.
Which TV has the better smart TV platform?
The LG 65UA8450PSA offers WebOS 25 with Voice ID, AI Chatbot, Google Cast, and Magic Remote, making it the more feature-rich smart platform.
Which TV delivers better picture processing?
LG has an advantage with its α7 AI Processor 4K Gen8 and Dynamic Tone Mapping, providing more advanced picture optimization.
Is Samsung UA65U8400FULXL a good choice for smart home users?
Yes. Samsung's SmartThings Hub integration makes it an excellent option for users with compatible smart home devices.
Which TV offers better overall value?
The LG 65UA8450PSA provides better overall value due to its stronger AI features, enhanced audio processing, and premium smart TV experience.
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