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TCL 55S421-CA
Rs.45,249.68

LG 55NANO80AQA
Rs.45,331.20
Model No 55S421-CA 55NANO80AQA
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 120 Hz 60 Hz
Viewing Angle 178°/178° 178°/178°
USB
USB Version : 2.0
Supported Audio Formats : AAC, MP3, WMA, WAV ( PCM ), AIFF, FLAC, AC3
Supported Video Formats : MKV (H.264), MP4, MOV ( H.264 ), TS ( H.264 )
Supported Picture Formats : JPEG, PNG, GIF
USB Version : 2.0
Supported Audio Formats : AC4, AC3, EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X
Supported Video Formats : MKV, DivX, MP4, AVI, ASF, MOV, FLV
Supported Picture Formats : JPEG, JPS, MPO
Video
Backlight : 4K UHD HDR LED
HDR10 : Yes
Resolution : UHD
Clear Motion Index : 120Hz CMI
Display Colors : 1.07 Billion
Picture Engine : 4K Creative Pro Upscaling Engine
BackLight : 4K UHD Edge LED
HDR10 : Yes
HLG : Yes
Next Picks : Yes
Active HDR : Yes
Nano Color : Yes
Magic Explorer : Yes
Filmmaker Mode : Yes
Billion Rich Colors : Yes*
Dynamic Tone Mapping : Yes
Upscaling : 4K Upscaling
Backlight Dimming Technology : Local Dimming
Display Type : NanoCell Display
Picture Processor : α5 Gen 5 AI Processor 4K
Audio
Audio Output ( RMS ) : 2 Channel X 8 W
Dolby Processing : Dolby Digital
Audio Passthrough : Dolby Digital Plus
Audio Output ( RMS ) : 20 W
AI Sound Pro : Yes
LG Sound Sync : Yes
TV Sound Mode Share : Yes
Bluetooth Surround Ready : Yes
Speaker Direction : Down Firing
Speaker System : 2.0 Channel
Audio Codec : AC4, AC3 ( Dolby Digital ), EAC3, HE-AAC, AAC, MP2, MP3, PCM, WMA, apt-X ( Refer To Manual )
Connectivity Options
HDMI 2.0 : 3, w/HDCP 2.2 ( 1 ARC )
USB 2.0 : 1
Ethernet / LAN : 1 Yes
RF Input ( NTSC, ATSC ) : 1 Yes
Audio Output Headphone : 1 Yes
SPDIF Digital Audio Optical : 1 Yes
AV Input : Composite Video + L&R Audio In
Wireless Connection : 802.11ac 2X2 Dual Band ( support 2.4GHz & 5GHz )
HDMI : 4 ( Side )
USB ( 2.0 ) : 3 ( 2 Rear, 1 Side )
Ethernet / LAN : 1 Side
Digital Audio Output ( Optical ) : 1 Side
RF Connection Input ( Antenna / Cable ) : 1 Side
IP Control : Yes
Bluetooth® 5.0 : Yes
HDMI-CEC ( Simplink ) : Yes
Smart Phone Connectivity : Yes
HDMI Audio Return Channel : eARC ( HDMI 2 )
TV Tuner : ATSC, Clear QAM
Wi-Fi® Standard : Wi-Fi Certified 802.11ac
Smart TV Features
Operating System : Roku TV
CPU : Dual-core
GPU : Dual-core
Powerful Mobile App : Yes
Advanced PQ Setting With Mobile App : Yes
Operating System : webOS
Sports Alert : Yes
LG Channels : Yes
LG ThinQ® AI : Yes
Full Web Browser : Yes
Home Dashboard : Yes
Who. Where. What? : Yes
Intelligent Voice Recognition : Yes
LG Content Store ( App Store ) : Yes
Universal Remote Control : Yes ( Auto Device Detection )
Magic Remote Control : Yes ( Point, Click, Scroll, Voice )
Google Home Compatible : Yes ( Google Home Device Sold Separately )
Amazon Alexa Compatible : Yes ( Amazon Alexa Device Sold Separately )
Voice Assistants : Google Assistant Built-in ( No Separate Device Purchase Necessary )
Content Partners : Netflix, Prime Video, Disney+, Apple TV, Hulu, CBS All Access, Peacock, Youtube TV, Spotify, iHeartRadio And More
Other Features
Closed Caption : Yes
1 Year Limited Warranty : Yes
Parental Control ( V-Chip ) : Yes
Accessible Menu System ( CVAA ) : Yes
Control Buttons : Power/Power/Menu, <,>
Multilingual On-Screen-Display : English, Spanish, French
Signal Format Capability : ATSC / NTSC / Clear QAM
HGiG : Yes
Game Optimizer : Yes
Auto Low Latency Mode ( ALLM ) : Yes
Limited Warranty : 1 Year Parts & Labor
Cloud Gaming : NVIDIA GEFORCE NOW
General Details
Power Supply (Voltage, Hz) : AC 100V-240V 50/60Hz
Annual Power Consumption : 150 kWh/Y
Power Consumption Standby : <0.5 W
Weight Without Stand : 12.11 Kg
Weight With Stand : 12.29 Kg
Packaging Weight : 17.78 Kg
VESA Walll Mount Pattern : 200 mm X 200 mm
Power Supply : AC 120V, 50/60Hz
Power Consumption : 74.5 W
Annual Power Consumption ( kWh ) : 139 kWh/Y
Power Consumption Standby : Under 0.5 W
TV Weight Without Stand : 16.28 Kg
TV Weight With Stand : 16.69 Kg
Packaging Weight : 22.99 Kg
VESA Mounting : 300 mm X 300 mm
Supplied Accessories
Remote Control : Roku TV RC280
2 AAA Batteries : Yes
Screw Size : M6 X 12
Quick Start Guide : Yes English
Remote Control : Magic Remote Control
AA Batteries : Yes
Power Cable : Yes
E-Manual : Yes
Quick Start Guide : Yes

Compare TCL 55S421-CA with:

Compare LG 55NANO80AQA with:

Key Differences

TCL 55S421-CA and LG 55NANO80AQA differ in resolution (UHD vs 4K 3840 x 2160), which can affect overall clarity and sharpness of the display. From a practical standpoint, both options provide a reliable viewing experience for most users. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. TCL 55S421-CA and LG 55NANO80AQA offer different motion rates (120 Hz vs 60 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. Audio output differs between the two (2 Channel X 8 W vs 20 W), which can influence overall sound clarity and loudness. Both TVs come with smart platforms that support popular streaming apps and voice control features. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. If you're comparing TCL 55S421-CA and LG 55NANO80AQA, both models come with modern features and are designed to deliver a solid viewing experience across different use cases.

Verdict: Both models offer good value, and the better option depends on your specific requirements and viewing preferences.