| Model No |
55UN7440PVA |
AR55GR2851VQD |
| TV Type |
Smart TV |
Smart TV |
| Screen Size |
55 Inch (139 cm) |
55 Inch (139 cm) |
| Resolution |
4K 3840 x 2160 |
4K 3840 x 2160 |
| Aspect Ratio |
16:9 |
16:9 |
| Motion Rate |
50 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, JPS, MPO |
|
| USB Version |
: 3.0 |
| Supported Audio Formats |
: MPEG1/2, MPEG4, AC3, EAC3, AAC, WMA, FLAC |
| Supported Video Formats |
: H.265, H.264, H.263, MPEG1, MPEG2, MPEG4 |
| Supported Picture Formats |
: JPEG |
|
| Video |
| BackLight |
: Direct 4K UHD |
| Backlight Type |
: Direct |
| Filmmaker Mode™ |
: Yes |
| Wide Viewing Angle |
: Yes |
| TruMotion |
: M100 |
| Resolution Upscaler |
: 4K Upscaler |
| HDR |
: Active HDR |
| HDR10 Pro |
: Yes ( 4K / 2K ) |
| HDR Effect |
: Yes ( 4K / 2K ) |
| HLG |
: Yes ( 4K / 2K ) |
| HEVC |
: 4K@60P, 10bit |
| VP9 ( Video Decoder ) |
: 4K@60P, 10bit |
| AV1 ( Video Decoder ) |
: 4K@60p, 10bit |
| HEVC ( Video Decoder ) |
: 4K@60p, 10bit |
| Image Enhancing |
: Image Enhancing |
| Dimming Algorithm |
: LG Local Contrast |
| Picture Processor |
: Quad Core Processor 4K |
| Dynamic Tone Mapping/Pro |
: HDR Dynamic Tone Mapping |
| Picture Mode |
: Yes 10 Modes ( Vivid, Standard, Eco, Cinema, Sports, Game, HDR Effect, Filmmaker, ( ISF ) Expert ( Bright Room ), ( ISF ) Expert ( Dark Room ) ) |
|
| Backlight |
: 4K UHD QLED |
| HLG |
: Yes |
| HDR10 |
: Yes |
| Dolby Vision |
: Yes |
| UHD Upscaling |
: Yes |
| Micro Dimming |
: Yes |
| Super Brightness |
: Yes |
| 1.07 Billion Colours |
: Yes |
| Wide Colour Gamut |
: Yes |
| Blue Light Reduction |
: Yes |
| Digital Noise Reduction |
: Yes |
| Dynamic Signal Calibration – DSC |
: Yes |
| Motion Estimation, Motion Compensation – MEMC |
: Yes |
| Analog TV Reception |
: NTSC |
| Panel Type |
: VA Panel |
| Picture Engine |
: Intelligent Frame Stabilization Engine – IFSE |
|
| Audio |
| Audio Output ( RMS ) |
: 20 W ( 10 W Per Channel ) |
| Dolby Digital |
: Yes |
| Sound Share |
: Yes |
| Clear Voice III |
: Yes |
| AI Acoustic Tuning |
: Yes |
| LG Sound Sync |
: Yes |
| Bluetooth Surround Ready |
: Yes |
| Auto Notification ( Bluetooth Easy Paring ) |
: Yes |
| AI Sound Pro |
: AI Sound |
| Speaker Direction |
: Down Firing |
| Surround Mode |
: Ultra Surround |
| Speaker System |
: 2.0 Channel Speaker |
| Simultaneous Audio Output |
: Yes ( Optical Output Or HP Support Model ) |
| Audio Codec |
: AC4, AC3 ( Dolby Digital ), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X ( Refer To Manual ) |
|
| Audio Output ( RMS ) |
: 30 W |
| Number of Speakers |
: 2 |
| Sound Technology |
: Dolby Atmos |
| Speaker Type |
: HiFi speakers |
| Surround Sound |
: Virtual Surround Sound |
| Sound Mode |
: Stadium, Standard, Movie, Music, Speech |
|
| Connectivity Options |
| HDMI |
: 3 ( 1 Rear, 2 Side ) |
| USB |
: 2 ( 1 Rear, 1 Side ) |
| Ethernet Input / LAN |
: Yes ( Rear ) |
| SPDIF ( Optical Digital Audio Out ) |
: Yes ( Rear ) |
| Headphone Out |
: Yes ( Rear ) |
| A-CAS |
: Yes ( Side ) |
| CI Slot |
: Yes ( Side ) |
| Bluetooth Version 5.0 |
: Yes |
| Screen Share |
: Yes |
| Wi-Fi TV On |
: Yes |
| Simplink ( HDMI CEC ) |
: Yes |
| eARC / ARC ( Audio Return Channel ) |
: ARC ( HDMI 2 ) |
| WiFi |
: Yes (802.11ac) |
| RF In |
: 2 ( Rear, RF / Sat ) |
| Bluetooth Low Energy On |
: Yes |
| Component |
: Yes ( Rear, Component In / AV In common ) |
| Composite In ( AV ) |
: Yes ( Rear, Component In / AV In common ) |
|
| HDMI 2.1 |
: 3 ( 1 Supports eARC ) |
| USB ( 2.0 , 3.0 ) |
: 2 ( 2.0 X 1, 3.0 X 1 ) |
| Bluetooth |
: Yes |
| Built In Wi-Fi |
: Yes |
| Ethernet / LAN |
: Yes |
| Internet Access |
: Yes |
| Headphone Jack |
: Yes |
| 2 Way Bluetooth |
: Yes |
| Chromecast Built-In |
: Yes |
| Wireless LAN Adapter |
: Yes |
| Wi-Fi Type |
: Dual Band Wifi 2.4GHz + 5GHz |
|
| Smart TV Features |
| Operating System |
: webOS Smart TV |
| CPU |
: Quad |
| ThinQ |
: Yes |
| ThinQ App |
: Yes |
| AI UX |
: Yes |
| AI Recommendation / AI |
: Yes |
| AI Home |
: Yes |
| Intelligent Edit |
: Yes |
| Home Dashboard |
: Yes |
| Intelligent Voice Recognition |
: Yes |
| Related Content Search |
: Yes |
| Mobile Connectivity |
: Yes |
| LG Store |
: Yes |
| DIAL |
: Yes |
| Quick Access |
: Yes |
| 360° VR Play |
: Yes |
| Magic Remote Control Built-In |
: Yes |
| Web Browser |
: Yes |
| Music Player |
: Yes |
| TV On With Mobile |
: Yes |
| Block Access To Harmful Site |
: Yes |
| Network File Browser |
: Yes |
| Hotel Mode |
: Yes |
| Sports Alert |
: Yes |
| Music Discovery |
: Yes |
| LG Voice Search |
: Yes |
| Speech To Text |
: Yes |
| Universal Control |
: Yes |
| Auto Device Detection |
: Yes |
|
| Operating System |
: Google TV |
| CPU |
: Cortex-A55 x4, 1.3GHz |
| GPU |
: Mali G31 MP2,Open GL ES3.2 |
| RAM |
: 2 GB |
| ROM |
: 16 GB |
| Screen Mirroring |
: Yes |
| Google Play Store |
: Yes |
| Supported App - Netflix |
: Yes |
| Supported App - Youtube |
: Yes |
| Supported App - Disney + Hotstar |
: Yes |
| Supported App - Prime Video |
: Yes |
| Operating System Present |
: Yes |
| Supported Mobile Operating System |
: Android, iOS |
| Supported Devices For Casting |
: Mobile, Laptop, PC |
| Voice Assistant |
: Yes, Voice Enabled Smart Remote |
| Pre – Installed Applications |
: Netflix, Prime Video, Youtube, Google Play, FastCast, Smart Player |
| Content Providers |
: Netflix, Prime Video, Hotstar, YouTube, Fast Cast, Google Play Store |
| Supported Internet Services |
: More than 5000 Plus Apps and Games, Chromecast, Google Assistant, Unlimited Content |
|
| Other Features |
| HGiG Mode |
: MR |
| Instant Game Response ( ALLM ) |
: Yes |
| Digital TV Reception ( Terrestrial, Cable, Satellite ) |
: Yes |
| Teletext (Top / Flof / List ) |
: Yes |
| [ DVB ] Subtitle |
: Yes |
| AD ( Audio Description ) |
: Yes |
| EPG ( 8 Days ) |
: Yes |
| Time Machine ( DVR ) |
: Yes |
| Time Shift |
: Yes |
| Digital Recording |
: Yes |
| Analog TV Reception |
: Yes |
| Analog DVR |
: Yes |
| Teletext Page |
: Yes |
| Cable |
: DVB-C |
| Terrestrial |
: DVB-T2 |
| Satellite |
: DVB-S2 |
|
| Design |
: Frameless Design |
| Clock |
: Yes |
| Teletext |
: Yes |
| ECO Mode |
: Yes |
| RF Capable |
: Yes |
| Color Screen |
: Yes |
| Smart Remote |
: Yes |
| Auto Power Off |
: Yes |
| System Languages |
: English |
| Other Remote Control Features |
: 4 Hotkeys - Netflix, Prime Video, YouTube, Disney+ Hotstar |
| Comprehensive Warranty |
: 2 Years Comprehensive Warranty from the Date of Purchase |
|
| General Details |
| Power Supply |
: AC 100 ~240 V 50-60 Hz |
| Energy Efficiency Class |
: A |
| On Mode Power Consumption ( W ) |
: 101 W |
| Annual Power Consumption ( kWh ) |
: 147 kWh |
| Power Consumption Standby |
: Under 0.5 W |
| Luminance Ratio (%) |
: 65 |
| Mercury Content ( Mg ) |
: 0.0 |
| Energy Saving Mode |
: Yes |
| Illuminance Green Sensor |
: Yes |
| Energy Standard |
: Yes |
|
| Power Requirements |
: AC 110 – 240 V, 50Hz / 60Hz |
| Power Consumption |
: 145 W |
| Power Consumption Standby |
: 0.5 W |
| Weight Without Stand |
: 11.3 Kg |
|
| Supplied Accessories |
| Remote Control |
: MR20 |
| AA x 2EA Batteries |
: Yes |
| User Manual |
: Yes |
| Power Cable |
: Yes ( TV Detached ) |
|
| Smart Remote Control - 1N |
: Yes |
| Batteries AAA -2N |
: Yes |
| Screw - 4N |
: Yes |
| Power Cable - 1N |
: Yes |
| User Manual - 1N |
: Yes |
| Warranty Card - 1N |
: Yes |
| Table Top Stands - 2N |
: Yes |
|
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Compare LG 55UN7440PVA with:
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Compare Acer AR55GR2851VQD with:
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Key Differences
Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. Audio output differs between the two (20 W ( 10 W Per Channel ) vs 30 W), which can influence overall sound clarity and loudness. If you're comparing LG 55UN7440PVA and Acer AR55GR2851VQD, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both TVs come with smart platforms that support popular streaming apps and voice control features. LG 55UN7440PVA and Acer AR55GR2851VQD offer different motion rates (50 Hz vs 60 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. 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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