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TCL 55S546-CA
Rs.66,203.33

Hisense 55U78KM
Rs.66,442.68
Model No 55S546-CA 55U78KM
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 60 Hz 144 Hz
Viewing Angle 178°/178° 178°/178°
USB
USB Version : 2.0
Supported Audio Formats : MP3, AC3, AAC, AC4
Supported Video Formats : AVI, DIV, MPEG-4, MPEG-H, MP4, VC-1, VP8, PP9
Supported Picture Formats : JPEG, PNG ,BMP, HEIF
USB Version : 3.0
Supported Audio Formats : WMA, WMV, MP4, FLAC, MP2, MP3
Supported Video Formats : AVI, WMV, MP4, MOV, 3GP, MKV, MPG, MPEG, VOB, FLV, WebM, OGM
Supported Picture Formats : JPEG, BMP, PNG, GIF, MPO
Video
Backlight : 4K HDR QLED TV
HDR10+ : Yes
HDR10 : Yes
HLG : Yes
Dolby Vision : Yes
Natural Motion : 240
Resolution : UHD
Display Colors : 1.07 Billion
Picture Engine : AiPQ Engine
Backlight : 4K UHD Mini-LED ULED™
HLG : Yes
MEMC : Yes
HDR10 : Yes
HDR10+ : Yes
4K Upscaling : Yes
Dolby Vision™ : Yes
Local Dimming : Yes
Noise Reduction : Yes
IMAX Enhanced : Yes
Filmmaker Mode : Yes
Wide Color Gamut : Yes
Quantum Dot Colour : Yes
Motion Rate : 480
Colours : 1.07 Billion
Picture Engine : Hi-View Engine
Peak Brightness : Up To 1000 Nits
Colour Depth : 1.07G / ( 8bit + FRC )
Backlight Type Source : Full Array Local Dimming
Local Dimming Zones : 240 Local Dimming Zones
Audio
Audio Output ( RMS ) : 8 W + 8 W
Dolby Processing : Dolby Atmos
Audio Passthrough : Dolby Atmos / Dolby Digital Plus / Dolby Digital
Sound Output Power( RMS ) : 2 X 10 W
Audio Technologies : Dolby Atmos
Connectivity Options
HDMI 2.0 : 3 ( 1 With eARC )
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
WiFi : 802.11ac 2X2 Dual Band ( Supports 2.4GHz & 5GHz )
AV Input : Composite Video + L&R Audio In ( Mini 3.5 mm Connector )
HDMI ( 2.0 + 2.1 ) : 4 ( 2.1 X 2 + 2.0 X 2 )
USB ( 2.0 + 3.0 ) : 2 ( 3.0 X 1 + 2.0 X 1 )
eARC : Yes
Bluetooth™ : Yes
RF Antenna : Yes
Ethernet / LAN : Yes
Earphone / Audio Output : Yes
Digital Audio Output Optical : Yes
HDMI ARC : eARC
Wireless Built- In : WiFi 6E( 802.11 ax ) ( 2.4/ 5 / 6 GHz )
Smart TV Features
Operating System : Google TV
Chromecast Built-In : Yes
Auto Game Mode ( ALLM ) : Yes
Advanced PQ Setting With Mobile App : Yes
Integrated Hands-Free Voice Assistant : Google Assistant
Variable Refresh Rate ( VRR ) : 48Hz - 60Hz @ 4K
Easy Voice Control : Works With Siri, Alexa, And Hey Google
Operating System : Google TV
Netflix : Yes
Disney + : Yes
Prime Video : Yes
Built-In Web Browser : Yes
Built-In Google Assistant : Yes
Works With Amazon Alexa : Yes
Hands-Free Voice Control : Yes
Other Features
Sleep Timer : Yes
Closed Caption : Yes
1 Year Limited Warranty : Yes
Parental Control ( V-Chip ) : Yes
Accessible Menu System ( CVAA ) : Yes
Control Buttons : One Button
Multilingual On-Screen-Display : English, Spanish, French
Tuner Type : ATSC / NTSC / Clear QAM
Live TV Pause From Antenna ( Up To 30 Minutes ) : Yes ( Compatible With USB Drive )
Design : Full View Edge-To-Edge Glass Design
Design : Bezel-Less Design
ID Colour : Black, Gray
Screen Type : Flat
Sleep Timer : Yes
Parental Control : Yes
Game Mode Pro : Yes
Closed Captioning : Yes
Digital Media Player : Yes
Variable Refresh Rate ( VRR ) : Yes
Automatic Low-Latency Mode ( ALLM ) : Yes
Warranty : 1 - Year ( In-Home )
Menu Languages : English, French, Spanish
General Details
Power Supply (Voltage, Hz) : AC 100V-240V 50/60Hz
Annual Power Consumption : 274 kWh/Y
Power Consumption Standby : <0.5 W
Weight Without Stand : 15.60 Kg
Weight With Stand : 15.78 Kg
Packaging Weight : 20.41 Kg
VESA Walll Mount Pattern : 200 mm X 300 mm
Power Supply : AC 120V, 60Hz
Power Consumption : 170 W
Power Consumption Standby : <0.5 W
Weight With stand : 14.37 Kg
Weight With Packaged : 20.41 Kg
VESA Mount Pattern : 400 mm X 200 mm
Supplied Accessories
Remote Control : RC902N
2 AAA Batteries : Yes
Screw Size : M6 X 12
Warranty Info / Quick Start Guide (QSG) : Yes English
Power Cord Type : Detachable
Voice Remote Control : Yes
2 Batteries : Yes
Power Card : Yes
User Manual : Yes
Quick Start Guide : Yes

Compare TCL 55S546-CA with:

Compare Hisense 55U78KM with:

Key Differences

Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both TVs come with smart platforms that support popular streaming apps and voice control features. TCL 55S546-CA and Hisense 55U78KM differ in resolution (UHD vs 4K 3840 x 2160), which can affect overall clarity and sharpness of the display. TCL 55S546-CA and Hisense 55U78KM offer different motion rates (60 Hz vs 144 Hz), which can impact smoothness during fast-moving scenes like sports and gaming. If you're comparing TCL 55S546-CA and Hisense 55U78KM, both models come with modern features and are designed to deliver a solid viewing experience across different use cases. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments.

Verdict: Choosing between TCL 55S546-CA and Hisense 55U78KM depends on your usage, whether you prioritize display quality, smoother motion, or smart features.