| 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 |
|
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Compare TCL 55S546-CA with:
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Compare Hisense 55U78KM with:
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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. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. 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. 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. Both TVs provide standard built-in audio performance suitable for regular usage, though external speakers can enhance the experience. Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. TCL 55S546-CA and Hisense 55U78KM are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Verdict: Choosing between TCL 55S546-CA and Hisense 55U78KM depends on your usage, whether you prioritize display quality, smoother motion, or smart features. Top Differences- Resolution: UHD Vs 4K 3840 x 2160
- Refresh Rate: 60 Hz Vs 144 Hz
- Display Technology: 4K HDR QLED TV Vs 4K UHD Mini-LED ULED™
- Picture Processor: AiPQ Engine Vs Hi-View Engine
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