TCL 43S451-CA vs TCL 40S334-CA – Which TV is Better? (2026)

ALERT

TCL 43S451-CA
Rs.22,364.37

TCL 40S334-CA
Rs.22,223.57

Model No

43S451-CA

40S334-CA

TV Type

Smart TV

Smart TV

Screen Size

43 Inch (109.22 cm)

40 Inch (102 cm)

Resolution

4K 3840 x 2160

1920 x 1080

Aspect Ratio

16:9

16:9

Motion Rate

60 Hz

50 Hz

Viewing Angle

178°/178°

178°/178°

USB

USB Version	: 2.0
Supported Audio Formats	: AAC, MP3, FLAC
Supported Video Formats	: MPEG4 Xvid, H.264, H.265, VC1, VP9
Supported Picture Formats	: JPEG, PNG, BMP

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	: JPG, PNG, GIF

Video

Backlight	: 4K UHD HDR LED TV
HDR10	: Yes
HLG	: Yes
Resolution	: UHD
Display Colors	: 1.07 Billion

Backlight	: FHD LED
Resolution	: FHD
Clear Motion Index	: 120 CMI
Display Colors	: 16.7 Million

Audio

Audio Output ( RMS )	: 10 W + 10 W
Premium Audio	: Dolby Digital Plus

Audio Output ( RMS )	: 8 W + 8 W
Premium Audio	: Dolby Digital Plus

Connectivity Options

HDMI 2.0	: 4 ( 1 eARC )
USB 2.0	: 1
Bluetooth®	: Yes
Headphone Jack	: 1 Yes
RF Antenna Input	: 1 Yes
Composite Audio / Video Input	: 1 Yes
Digital Optical Audio Output	: 1 Yes
Fast WiFi	: 802.11ac 2X2 Dual Band ( Support 2.4GHz & 5GHz )

HDMI 2.0	: 2 ( 1 ARC )
USB 2.0	: 1 Yes
Bluetooth®	: Yes
Headphone Jack	: 1 Yes
RF Antenna Input	: 1 Yes
Composite Audio/Video Input	: 1 Yes
Digital Optical Audio Output	: 1 Yes
Wireless Connection	: 802.11n Single Band

Smart TV Features

Operating System	: Roku TV
Chromecast Built-In	: Yes
Works With Alexa	: Yes
Quick And Easy Search	: Yes
Works With Hey Google	: Yes
Works With Apple Homekit	: Yes
Easy Voice Control	: Works With Siri, Alexa, And Hey Google

Operating System	: Android TV
Chromecast Built-In	: Yes
CPU	: Dual Core
Integrated Voice Assistant	: Google Assistant

Other Features

Sleep Timer	: Yes
Closed Caption	: Yes
1 Year Limited Warranty	: Yes
Parental Control ( V-Chip )	: Yes
Accessible Menu System ( CVAA )	: Yes
Live TV Pause From Antenna ( Up To 30 Minutes )	: Yes
Control Buttons	: One Button
Multilingual On-Screen-Display	: English, Spanish, French
Tuner Type	: ATSC / NTSC / Clear QAM

Sleep Timer	: Yes
Closed Caption	: Yes
Parental Control ( V-Chip )	: Yes
Accessible Menu System ( CVAA )	: Yes
1 Year Limited Manufacturers Warranty	: Yes
Control Buttons	: One Button
Multilingual On-Screen-Display	: English, Spanish, French
Tuner Type	: ATSC / NTSC / Clear QAM

General Details

Power Supply (Voltage, Hz)	: AC 100V-240V 50/60Hz
Annual Power Consumption	: 83 kWh/Y
Power Consumption Standby	: ＜0.5 W
Weight Without Stand	: 6.21 Kg
Weight With Stand	: 6.30 Kg
Packaging Weight	: 8.48 Kg
VESA Walll Mount Pattern	: 200 mm X 200 mm

Power Supply (Voltage, Hz)	: AC 100V-240V 50/60Hz
Annual Power Consumption	: 91 kWh/ Y
Power Consumption Standby	: ＜0.5 W
Weight Without Stand	: 6.39 Kg
Weight With Stand	: 6.48 Kg
Packaging Weight	: 8.89 Kg
VESA Walll Mount Pattern	: 100 mm X 100 mm

Supplied Accessories

Remote Control - 1N	: RC280
2 AAA Batteries - 2N	: Yes
User Manual - 1N	: Yes
Warranty Info - 1N	: Yes
Screw Size	: M6 X 12
Quick Start Guide	: Yes English

Voice Remote Control	: Yes
2 AAA Batteries	: Yes
Screw Size	: M6 X 12
Warranty Info / Quick Start Guide (QSG)	: Yes English

Compare TCL 43S451-CA with:

Compare TCL 40S334-CA with:

Key Differences

TCL 40S334-CA and TCL 43S451-CA offer different motion rates (50 Hz vs 60 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. From a practical standpoint, both options provide a reliable viewing experience for most users. TCL 40S334-CA and TCL 43S451-CA are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. TCL 40S334-CA features a 40 Inch (102 cm) screen while TCL 43S451-CA comes with 43 Inch (109.22 cm), which can make a noticeable difference depending on your room size and viewing distance. 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. Audio output differs between the two (8 W + 8 W vs 10 W + 10 W), which can influence overall sound clarity and loudness. TCL 40S334-CA and TCL 43S451-CA differ in resolution (FHD vs UHD), which can affect overall clarity and sharpness of the display.

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

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