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Sony KD-55X77CL
Rs.45,680.84

TCL 55C645K
Rs.45,785.45
Model No KD-55X77CL 55C645K
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 60 Hz
Viewing Angle 178°/178° 178°/178°
USB
USB Version : 2.0
Supported Audio Formats : MP3 AUDIO, WMA
Supported Video Formats : WMV, PS, MPG, M2TS, MPEG, DIVX, MPEG-PS, MP4
Supported Picture Formats : JPEG, GIF, PNG, TIFF, RAW
USB Version : 3.0
Supported Audio Formats : WMA, MP3
Supported Video Formats : AVI, WMV, MP4 ( H.265.H.264, VP9, AV1,… ), MPG, TS, MKV, WebM, VP9
Supported Picture Formats : HEIF, JPG, PNG, BMP, Text Subtitles
Video
Backlight Type : 4K UHD Direct LED
HLG : Yes
HDR10 : Yes
Auto Wide : Yes
Photo TV HD, BRAVIA For China : Yes
Cine Motion, Film Mode, Cinema Drive : Yes
Display Resolution : QFHD
4K Processor : 4K Processor X1
Clarity Enhancement : 4K X-Reality Pro
Backlight Dimming Type : Frame Dimming
Color Enhancement : Live Color™ Technology
Contrast Enhancement : Dynamic Contrast Enhancer
Motion Enhancer ( Native Hz ) : Motionflow XR 240 ( Native 60Hz )
Picture Mode : Vivid, Standard, Cinema, Game, Graphic, Photo, Custom
Wide Mode : Auto, Wide Zoom, Normal, Full, Full Pixel, Zoom, 14:9, Full Pixel
Video Signal Support : HDMI™ Signal: 4096 X 2160p ( 24, 60 Hz ), 3840 X 2160p ( 24, 30, 60 Hz ), 1080p ( 30, 60 Hz ), 1080/24p, 1080i ( 60 Hz ), 720p ( 30, 60 Hz ), 720/24p, 480p, 480i
Backlight : 4K QLED
HLG : Yes
HDR10 : Yes
HDR10+ : Yes
Film Mode : Yes
4K HDR Pro : Yes
Dolby Vision : Yes
Motion Clarity : Yes
Digital Noise Reduction : Yes
Picture Performance Index : 3100
Dynamic Contrast : Mega
Wide Colour Technology : Quantum Dot
Picture processing : AiPQ 3.0 Engine
Color Management : 20P & 2P Calibration
Video Decoding : H.265 UHD, H.264, MPEG-2
UHD Upscaling : UHD Machine Learning AI SR
Audio
Audio Output Power : 10 W + 10 W
Balance : Yes
Clear Phase : Yes
Auto Mute ( On No Signal ) : Yes
Channel Configuration : 2 Channel
Speaker Position : Down Firing
Speaker Type-2 : X-Balanced Speaker
Speaker Type : Bass Reflex Speaker
S-Master : S-Master Digital Amplifier
Dolby Audio Format Support : Dolby Audio, Dolby Atmos
Speaker Configuration : Full Range ( Bass Reflex ) X 2
Digital Audio Out ( Optical ) Format : Two Channel Linear PCM: 48kHz 16bits, Dolby Audio
ARC Output Format : Two Channel Linear PCM: 48kHz 16bits, Dolby Audio, Dolby Atmos
HDMI Input Audio Format : Two Channel Linear PCM: 32/44.1/48kHz 16/20/24bits, Dolby Audio
Sound Power ( RMS ) : 10 W + 10 W
Auto Volume Control : Yes
Equaliser : Presets
Speakers : Full Range Down
Speaker Type : 2.0 Sound System
Dolby Audio : Dolby AC4, Dolby TrueHD
Processing : Dolby Atmos, DTS Virtual-X, Virtualization & Upmix
Connectivity Options
HDMI™ 2.1 : 3 ( Side )
USB 2.0 : 2 ( Side )
RS-232C Inputs : 1 ( Side )
Ethernet Inputs : 1 ( Side )
RF ( Terrestrial / Cable ) Connection Inputs : 1 ( Side )
Apple Homkit : Yes
Apple Airplay : Yes
Chromecast Built-In : Yes
Control For HDMI ( HDMI CEC ) : Yes
HDMI Audio Return Channel : eARC / ARC
Features Specified In HDMI 2.1 : eARC / ALLM
WI-FI Frequency : 2.4GHz / 5GHz
Composite Video Inputs : 1 ( Side Mini Jack )
Auto Low Latency Mode ( ALLM ) : Yes ( For HDMI™3 )
USB Drive Format Support : FAT16 / FAT32 / NTFS
Analog Audio Inputs : 1 ( Side Analog Conversion )
HDCP : HDCP 2.3 ( For HDMI™ 1 / 2 / 3 )
WI-FI Standard : Wi-Fi Certified 802.11a / b / g / n / ac
Bluetooth Version : Version 5.0,HID / HOGP / A2DP / AVRCP / SPP
4K 60P High-Quality Formats : HDMI IN1, IN2, IN3 Ports For 4K ( Up To 18Gbps ) Signal
HDMI PC Input Format : 640X480 ( 31.5kHz,60Hz ), 800X600( 37.9kHz,60Hz ), 1024X768 ( 48.4kHz,60Hz ), 1280X1024 (64.0kHz,60Hz), 1152X864 (67.5kHz,75Hz), 1600x900 ( 55.9kHz,60Hz ), 1680X1050 ( 65.3kHz,60Hz ), 1920X1080 ( 67.5kHz,60Hz )
USB Playback Codes : MPEG1:MPEG1 / MPEG2 PS:MPEG2 / MPEG2 TS ( HDV,AVCHD ):MPEG2,AVC / MP4 ( XAVC S ):AVC,MPEG4,HEVC,AV1 / AVI: Motion Jpeg / ASF( WMV ): VC1 / M
HDMI 2.0 : 3
USB 3.0 : 1
CI Slot : Yes
DLNA 1.5 : Yes
Headphone : Yes
RF In ( F Sat ) : Yes
Bluetooth 5.0 : Yes
Ethernet / LAN : Yes
USB HID Support : Yes
HDMI Quick Switch : Yes
Chromecast & T-Cast : Yes
Digital Audio Out Optical : Yes
RF in ( IEC Terrestrial / Cable ) : Yes
HDCP 2.2 : 2,3
HDMI eARC / ARC : eARC HDMI3
YPbPr : CVBS Optional
Sat: Diseq / Unicable : Yes v.1.0 / ver. I
HDMI Max Resolution : 2160P / 60Hz 422 12Bit
WiFi : Built-in ac/n/g 2.4/5Ghz MIMO
Smart TV Features
Operating System : Google TV
ROM : 16 GB
Eco Dashboard : Yes
Google Play Store : Yes
24p True Cinema : Yes
Auto Genre Picture Mode : Yes
Auto HDR Tone Mapping : Yes
Electronic Program Guide ( EPG ) : Yes
Text Input Language : ARABIC, ENGLISH, FINNISH, FRENCH, GERMAN, HEBREW, HINDI, ITALIAN, JAPANESE, KOR, NORWEGIAN, PER, PORTUGUESE, RUSSIAN, SPANISH, THAI, VIETNAMESE, SIMPLIFIED CHINESE, TRADITIONAL CHINESE
Display Language : AFRIKAANS, ARABIC, BENGALI, ENGLISH, FRENCH, GUJARATI, HINDI, INDONESIAN, KANNADA, MALAYALAM, MARATHI, PANJABI, PER, PORTUGUESE, RUSSIAN, SPANISH, SWAHILI, TAMIL, TELUGU, THAI, VIETNAMESE, SIMPLIFIED CHINESE, TRADITIONAL CHINESE, ZULU
Operation System : Android R ( 11.0 )
Smart TV : Android TV
CPU : Quad Core
ROM ( DRAM ) : 2 GB
Netflix : Yes
Disney+ : Yes
YouTube : Yes
HbbTV 2.0.2 : Yes
Google Meet : Yes
Freeview Play : Yes
Works With Alexa : Yes
Google Play Store : Yes
Amazon Prime Video : Yes
Google Assistant* Built In : Yes
Hands-Free Voice Control : Yes
4K : Netflix, YouTube, Amazon Prime, AppleTV+ & More
Unlimited Content : Netflix , Disney+ , Amazon Prime, YouTube , HBO GO, Spotify, Twitch, Kodi, Plex, Google play movies, Hulu, Rakuten, Canal+ and so many others…
Other Features
Bezel Design : Narrow Bezel Design
Bezel Colour : Hairline Black
Stand Colour : Black
Stand Design : Slim Wedged Stand
TALKBACK : Yes
Sleep Timer : Yes
Voice Search : Yes
Switch Access : Yes
Auto Shut-off : Yes
On / Off Timer : Yes
On Screen Clock : Yes
Parental Control : Yes
Audio Description : Yes
Text Magnification : Yes
Auto Picture Mode : Yes
Cable Management : Yes
Accessibility Shortcut : Yes
Standard Remote Control : Yes
Closed Caption ( Analog, Digital ) : Yes
VESA® Hole Spacing Compatible : Yes
TV System ( Analog ) : M
Color System : NTSC
TV System ( Digital Terrestrial ) : ATSC
TV System ( Digital Cable ) : Clear QAM
Quick Setup Guide : EN,FR,ES,PT
Tuner Channel Coverage ( Digital Cable ) : CATV: 1-135
Channel Block ( With Password ) : Analog & Digital
Number Of Turners ( Terrestrial / Cable ) : 1 ( Digital / Analog )
Tuner Channel Coverage ( Digital Terrestrial ) : VHF: 2-13/UHF: 14-69
Show, Hide Channels : Yes ( Digital & Analog )
Tuner Channel Coverage ( Analog ) : VHF: 2-13/UHF: 14-69/CATV: 1-135
Optimal Accessories : Wallmount Bracket ( SU-WL855 ) Depends On Country Selection
Design : Bezel-Less Ultra Slim Design : Premium & Elegant Frameless Design
Main Color : Brushed Titanium Metal Front
Stand Type : Dual Stand Position
Stand Design : Y-Shape 2 Position
Teletext : Yes
Game Bar : Yes
Sleep Timer : Yes
Sports Mode : Yes
Aiming Aid : Yes
Game Master : Yes
AMD FreeSync : Yes
Analogue Tuner : Yes
Caption ( Subtitle ) : Yes
USB HID Support : Yes
Auto Channel Search : Yes
Game Accelerator 120 Hz : Yes
Auto Low Latency Mode ( ALLM ) : Yes
Smartphone / Tablet Remote Support : Yes
Multipicture : PAT
Game Mode : Auto
EPG ( DVB EIT / SI ) : Up To 8 Days
CI+ : Yes ( 1.4, ECP )
DTV Tuner : DVB-T2 / C / S2
Analogue Tuner Systems : PAL / SECAM / NTSC ( AV ) BG / DK / I / LL
OSD Languages : 59 Albanian, Bulgarian, Croatian, Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian, Latvian, Lithuanian, Macedonian, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Slovenian, Spanish, Swedish, Turkish, Ukrainian
General Details
Power Supply ( Voltage, Hz ) : AC 110 V - 240 V, 50/60Hz
Power Consumption : 191 W
Annual Energy Consumption* : 246 kWh
Power Consumption Standby : 0.5 W
Eco Friendly : Yes
Dynamic Backlight Control : Yes
Power Saving Mode / Back Light Off Mode : Yes
Weight Of TV Without Stand : 15.3 Kg
Weight Of TV With Stand : 15.6 Kg
Weight Of Package Carton : 22.0 Kg
VESA® Hole Pitch : 300 mm X 300 mm
Power Supply ( Voltage, Hz ) : 220-240V~50Hz
Max Power Consumption : 190 W
On Mode Power Demand In SDR ( X1 ) : 84 W
Power Demand In HDR ( X1 ) : 155 W
Standby Mode Power Demand : 0.5 W
Weight Without Stand : 11.10 Kg
Weight With Stand : 11.30 Kg
Packaging Weight : 15.50 Kg
EEI Class SDR ( X1 ) : G
EEI Class HDR ( X1 ) : G
Auto Power Off : Yes
Lead Presence : Yes
Peak Luminance Ratio : 65 %
Vesa Size : 200 mm X 300 mm
Supplied Accessories
Voice Remote Control : RMF-TX811U
Batteries : Yes
AC Power Cord : Yes
Table Top Stand : Yes
Quick Setup Guide : Yes
Operating Instructions : Yes
Remote Control : RC833F
Batteries : Yes
User Manual : Yes

Compare Sony KD-55X77CL with:

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Key Differences

Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. Both models support 4K 3840 x 2160 resolution, ensuring sharp picture quality with detailed visuals for movies, shows, and gaming. In general, both TVs cater to modern entertainment needs, including streaming, gaming, and everyday viewing. 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 provide decent motion handling, making them suitable for everyday viewing including sports and action content. Both TVs come with smart platforms that support popular streaming apps and voice control features. If you're comparing TCL 55C645K and Sony KD-55X77CL, 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.