| Model No |
55R646 |
55C825K |
| 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 |
120 Hz |
100 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, 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 |
: 4K HDR Mini-LED QLED TV |
| HDR10+ |
: Yes |
| HDR10 |
: Yes |
| HLG |
: Yes |
| Dolby Vision |
: Yes |
| Natural Motion |
: 480 |
| Resolution |
: UHD |
| Display Colors |
: 1.07 Billion |
| Picture Engine |
: AiPQ Engine |
|
| Backlight |
: 4K UHD QLED Direct Mini-LED |
| HLG |
: Yes |
| PQ10 |
: Yes |
| HDR10 |
: Yes |
| HDR10+ |
: Yes |
| Film Mode |
: Yes |
| Dolby Vision |
: Yes |
| HDR Extreme |
: Yes |
| Digital Noise Reduction |
: Yes |
| Motion Clarity Supreme |
: Yes |
| Picture Performance Index |
: 4100 |
| Dynamic Contrast |
: Mega |
| HDR Brightness |
: 1000 Nits |
| Wide Colour Technology |
: Quantum Dot |
| Picture processing |
: AiPQ 2.0 Engine |
| Video Decoding |
: H.265 UHD, H.264, MPEG-2 |
| UHD Upscaling |
: UHD Machine Learning AI SR |
| Color Management |
: 3D LUT, 20P & 2P Calibration |
|
| Audio |
| Audio Output ( RMS ) |
: 15 W + 15 W |
| Dolby Processing |
: Dolby Atmos |
| Audio Passthrough |
: Dolby Atmos / Dolby Digital Plus / Dolby Digital |
|
| Sound Power ( RMS ) |
: 15 W + 15 W + 20 W |
| Woofer |
: Yes |
| Auto Volume Control |
: Yes |
| Speakers |
: 3 Way |
| Equaliser |
: Presets |
| Speaker Type |
: Front Firing |
| Dolby Audio |
: Dolby AC4, Dolby TrueHD |
| Sound Processing |
: Dolby Atmos, DTS Virtual-X, Virtualization & Upmix |
|
| Connectivity Options |
| HDMI 2.1 |
: 4 ( 2 Ports With HDMI 2.1 Supports Up To 4k/120Hz. 1 Port With eARC ) |
| USB 2.0 |
: 2 |
| Ethernet / LAN |
: 1 Yes |
| RF Input ( NTSC, ATSC ) |
: 1 Yes |
| Audio Output ( RCA ) |
: Yes |
| Audio Output Headphone |
: 1 Yes |
| SPDIF Digital Audio Optical |
: 1 Yes |
| WiFi 6 |
: 802.11b/g/n/ac/ax 2X2, 2.4 GHz & 5 GHz |
| AV Input |
: Composite Video + L&R Audio In ( Mini 3.5 mm Connector ) |
|
| HDMI 2.1 |
: 3 |
| USB 3.0 + 2.0 |
: 2 ( 3.0 X 1, 2.0 X 1 ) |
| CI Slot |
: Yes |
| DLNA 1.5 |
: Yes |
| Bluetooth 5.2 |
: Yes |
| Headphone |
: Yes |
| RF In ( F Sat ) |
: 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 HDMI 1 |
| YPbPr |
: CVBS Optional |
| HDMI Max Resolution |
: 2160P / 60Hz 422 12Bit |
| WiFi |
: Built-in ax/ac/n 2.4/5Ghz MIMO |
|
| Smart TV Features |
| Smart Platform |
: Google TV |
| Chromecast Built-In |
: Yes |
| Auto Game Mode ( ALLM ) |
: Yes |
| THX Certified Game Mode |
: Yes |
| Advanced PQ Setting With Mobile App |
: Yes |
| Hands-Free Voice Google Assistant Control |
: Yes |
| Variable Refresh Rate ( VRR ) |
: 48Hz - 120 Hz @ 4K |
| Easy Voice Control |
: Works With Siri, Alexa, And Hey Google |
|
| Operation System |
: Android P ( 9.0 ) |
| CPU |
: Quad Core |
| Social |
: Yes |
| Netflix |
: Yes |
| Disney+ |
: Yes |
| YouTube |
: Yes |
| Google Duo |
: Yes |
| HbbTV 2.0.2 |
: Yes |
| Web Browser |
: Yes |
| Magic camera |
: Yes |
| AI Amazon Alexa |
: Yes |
| Google Play Store |
: Yes |
| AI Google Assistant |
: Yes |
| Amazon Prime Video |
: Yes |
| Google Assistant Built-In |
: Yes |
| Hands-Free Google Assistant |
: 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 and so many others… |
|
| 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 Ultra Slim Metal Design : Premium & Elegant Frameless Design |
| Color |
: Brushed Aluminium Metal Front |
| Stand Type |
: Fixed Central |
| Teletext |
: Yes |
| Sleep Timer |
: Yes |
| Sports Mode |
: Yes |
| Analogue Tuner |
: Yes |
| Quick Power On |
: Yes |
| Caption ( Subtitle ) |
: Yes |
| USB HID Support |
: Yes |
| Auto Channel Search |
: Yes |
| Auto Low Latency Mode ( ALLM ) |
: Yes |
| Smartphone / Tablet Remote Support |
: Yes |
| 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 |
: 29 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 100V-240V 50/60Hz |
| Annual Power Consumption |
: 258 kWh/Y |
| Power Consumption Standby |
: ＜0.5 W |
| Weight Without Stand |
: 19.18 Kg |
| Weight With Stand |
: 19.59 Kg |
| Packaging Weight |
: 25.80 Kg |
| VESA Walll Mount Pattern |
: 300 mm X 300 mm |
|
| Power Supply ( Voltage, Hz ) |
: 220-240V~50Hz |
| Max Power Consumption |
: 240 W |
| Annual SDR Power Consumption ( EEI 2021 ) ( X 1) |
: 103 W |
| Annual HDR Power Consumption ( EEI 2021 ) ( X 1) |
: 164 W |
| Weight Without Stand |
: 21.60 Kg |
| Weight With Stand |
: 22.40 Kg |
| Packaging Weight |
: 29.10 Kg |
| EEI 2021 Class SDR ( X1 ) |
: G |
| EEI 2021 Class HDR ( X1 ) |
: G |
| Auto power Off |
: Yes |
| Peak Luminance Ratio |
: 65% |
| Vesa Size |
: 400 mm X 400 mm |
|
| Supplied Accessories |
| Remote Control |
: Voice Enabled Remote Control RC902N |
| 2 AAA Batteries |
: Yes |
| Screw Size |
: M6 X 20 |
| Power Cord Type |
: Detachable |
| Warranty Info / Quick Start Guide (QSG) |
: Yes English |
|
| Remote Control |
: RC802N5 + RC802V5 |
| Batteries |
: Yes |
| User Manual |
: Yes |
|
|
Compare TCL 55R646 with:
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Compare TCL 55C825K with:
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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 in similar screen sizes, making them suitable for comparable viewing setups and room environments. Both TVs come with smart platforms that support popular streaming apps and voice control features. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. TCL 55R646 and TCL 55C825K are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. TCL 55R646 and TCL 55C825K differ in resolution (UHD vs 4K 3840 x 2160), which can affect overall clarity and sharpness of the display. TCL 55R646 and TCL 55C825K offer different motion rates (120 Hz vs 100 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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