| Model No |
65S421-CA |
65QNED70A6A |
| 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 |
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 |
: 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 |
|
| 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 DIRECT QNED |
| HLG |
: Yes |
| HDR10 |
: Yes |
| Auto Calibration |
: Yes |
| Filmmaker Mode ™ |
: Yes |
| Dynamic Tone Mapping |
: Yes |
| AI Upscaling |
: 4K Super Upscaling |
| Wide Color Gamut |
: Dynamic QNED Colour |
| Picture Processor |
: α7 AI Processor 4K Gen8 |
| Picture Mode |
: 10 Modes ( Personalized Picture Wizard, Vivid, Standard, Basic, Cinema, Sports, Game, Filmmaker, ( ISF ) Expert ( Bright Room ), ( ISF ) Expert ( Dark Room )) |
|
| Audio |
| Audio Output ( RMS ) |
: 2 Channel X 8 W |
| Dolby Processing |
: Dolby Digital |
| Audio Passthrough |
: Dolby Digital Plus |
|
| 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, 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 ( 2.0 ) |
: 3ea ( Supports eARC, ALLM ) |
| USB ( 2.0 ) |
: 1ea |
| Ethernet / LAN |
: 1ea |
| RF Input ( Antenna, Cable ) |
: 2ea |
| 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 ) |
|
| 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 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 |
| Works With Apple Airplay |
: Yes |
| USB Camera Compatible |
: 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............... |
|
| 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 |
|
| 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 ), DVB-S2/S ( Satellite ) |
|
| General Details |
| Power Supply (Voltage, Hz) |
: AC 100V-240V 50/60Hz |
| Annual Power Consumption |
: 180 kWh/Y |
| Power Consumption Standby |
: <0.5 W |
| Weight Without Stand |
: 17.59 Kg |
| Weight With Stand |
: 18.00 Kg |
| Packaging Weight |
: 26.98 Kg |
| VESA Walll Mount Pattern |
: 400 mm X 200 mm |
|
| Power Supply |
: AC 100~240V 50-60Hz |
| Power Consumption |
: 100 - 152 W |
| Power Consumption Standby |
: Under 0.5 W |
| TV Weight Without Stand |
: 16.8 Kg |
| TV Weight With Stand |
: 17.0 Kg |
| Packaging Weight |
: 22.7 Kg |
| VESA Mounting |
: 300 mm X 200 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 MR25 |
| Power Cable |
: Yes ( Detachable ) |
|
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Compare TCL 65S421-CA with:
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Compare LG 65QNED70A6A with:
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Key Differences
Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. If you're comparing TCL 65S421-CA and LG 65QNED70A6A, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. TCL 65S421-CA and LG 65QNED70A6A differ in resolution (UHD vs 4K 3840 x 2160), which can affect overall clarity and sharpness of the display. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. Both TVs come with smart platforms that support popular streaming apps and voice control features. Audio output differs between the two (2 Channel X 8 W vs 20 W), which can influence overall sound clarity and loudness. TCL 65S421-CA and LG 65QNED70A6A offer different motion rates (120 Hz vs 60 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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