| Model No |
55P638 |
55S423-CA |
| 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 |
120 Hz |
| Viewing Angle |
178°/178° |
178°/178° |
| USB |
| 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 |
|
| 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 |
: JPEG, PNG, GIF |
|
| Video |
| Backlight |
: 4K HDR LED |
| Digital Noise Reduction |
: Yes |
| Film Mode |
: Yes |
| Sports Mode |
: Yes |
| Smart HDR |
: Yes |
| Motion Clarity |
: Pro |
| Picture Performance Index |
: 2400 |
| Dynamic Contrast |
: Mega |
| Wide Color Technology |
: Dynamic Color |
| Picture Engine |
: IPQ 2.0 Engine |
| Color Management |
: 20P & 2P Calibration |
| UHD Upscaling |
: UHD AI Super Resolution |
|
| Backlight |
: 4K UHD HDR LED |
| HDR10 |
: Yes |
| Resolution |
: UHD |
| Clear Motion Index |
: 120Hz CMI |
| Display Colors |
: 1.07 Billion |
| Picture Engine |
: 4K Creative Pro Upscaling Engine |
|
| Audio |
| Audio Output ( RMS ) |
: 2 X 10 W |
| Music Sound Power |
: 2 X 20 W |
| Auto Volume Control |
: Yes |
| Equaliser |
: Presets |
| Speakers |
: Full Range |
| Speaker Type |
: Down Firing |
| Dolby |
: Dolby AC4, Dolby TrueHD |
| Processing |
: Dolby Atmos, Virtualization & Upmix |
|
| Audio Output ( RMS ) |
: 2 Channel X 8 W |
| Dolby Processing |
: Dolby Digital |
| Audio Passthrough |
: Dolby Digital Plus |
|
| Connectivity Options |
| HDMI |
: 3 |
| USB ( 3.0 + 2.0 ) |
: 2 |
| RF In ( F Sat ) |
: 1 |
| CI ( Slot ) / Type |
: 1 |
| RF In ( IEC Terrestial / Cable ) |
: 1 |
| Ethernet Or LAN RJ-45 |
: Yes |
| HDMI 3 x 2.1 |
: Yes |
| Digital Audio Out Optical |
: Yes |
| Headphone |
: Yes |
| Bluetooth SBC / 5.0 |
: Yes |
| HDCP 2,3 |
: Yes |
| HDMI Max Resolution |
: 2160P / 60Hz 422 12bit |
| WiFi |
: Built-I ac / n / g 2.4 / 5Ghz MIMO |
|
| HDMI 2.0 |
: 3, w/HDCP 2.2 ( 1 ARC ) |
| USB 2.0 |
: 1 |
| SPDIF Digital Audio Optical |
: 1 Yes |
| Audio Output Headphone |
: 1 Yes |
| AV Input |
: Composite Video + L&R Audio In |
| Wireless Connection |
: 802.11ac 2X2 Dual Band ( support 2.4GHz & 5GHz ) |
|
| Smart TV Features |
| Smart TV |
: Android TV ( 29 Languages ) |
| HbbTV 2.0.2 |
: Yes |
| CPU |
: Quad Core |
| WiFi Sharing |
: Chromecast & T-cast |
| AI Google Assistant |
: Google Assistant Ready |
| AI Amazon Alexa |
: Works with Alexa DE / FR / IT / UK |
| Smart Home |
: TCL Home, Google Home, Alexa Smart Home |
| 4K |
: Netflix, YouTube, Amazon Prime, AppleTV+ & More |
|
| Operating System |
: Roku TV |
| CPU |
: Dual-core |
| GPU |
: Dual-core |
| Powerful Mobile App |
: Yes |
| Advanced PQ Setting With Mobile App |
: Yes |
|
| Other Features |
| Teletext |
: Yes |
| Analogue Tuner |
: Yes |
| Auto Channel Search |
: Yes |
| Caption ( Subtitle ) |
: Yes |
| USB Channel List Clone |
: Yes |
| HDMI Quick Switch |
: Yes |
| DLNA 1.5 |
: Yes |
| USB HID Support |
: Yes |
| Sleep Timer |
: Yes |
| HDMI CEC ( T-Link ) |
: Full |
| Game Mode |
: Auto |
| CI+ |
: Yes ( 1.4, ECP ) |
| DTV Tuner |
: DVB-T2/C/S2 |
| EPG ( DVB EIT / SI ) |
: Up To 8 Days |
| Analogue Tuner Systems |
: PAL / SECAM / NTSC ( AV ) BG / DK / I / LL |
| USB Multimedia Browser |
: Video Up To 4K : AVI, WMV, MP4 ( H.265.H.264, VP9, …), MPG, TS, MKV, WebM, VP9, Audio: WMA, MP3, Pictures: HEIF, JPG, PNG, BMP, Text subtitles |
| 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 |
|
| Closed Caption |
: Yes |
| 1 Year Limited Warranty |
: Yes |
| Parental Control ( V-Chip ) |
: Yes |
| Accessible Menu System ( CVAA ) |
: Yes |
| Control Buttons |
: Power/Power/Menu, <,> |
| Multilingual On-Screen-Display |
: English, Spanish, French |
| Signal Format Capability |
: ATSC / NTSC / Clear QAM |
|
| General Details |
| Power Supply ( Voltage, Hz ) |
: 220-240V~50Hz |
| Power Consumption Standby |
: 0.29 W |
| Auto Power Off |
: Yes |
| Peak Luminance Ratio |
: 65% |
| Weight Without Stand |
: 9.80 Kg |
| VESA Walll Mount Pattern |
: 200 x 200 mm |
|
| Power Supply (Voltage, Hz) |
: AC 100V-240V 50/60Hz |
| Annual Power Consumption |
: 108 kWh/Y |
| Power Consumption Standby |
: <0.5 W |
| Weight Without Stand |
: 12.11 Kg |
| Weight With Stand |
: 12.29 Kg |
| Packaging Weight |
: 17.78 Kg |
| VESA Walll Mount Pattern |
: 200 mm X 200 mm |
|
| Supplied Accessories |
| Remote Control |
: RC802NU1 |
| Batteries |
: Yes |
| Stand Type |
: Fixed |
|
| Remote Control |
: Roku TV RC280 |
| 2 AAA Batteries |
: Yes |
| Screw Size |
: M6 X 12 |
| Quick Start Guide |
: Yes English |
|
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Compare TCL 55P638 with:
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Compare TCL 55S423-CA with:
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Key Differences
Both TVs come in similar screen sizes, making them suitable for comparable viewing setups and room environments. TCL 55P638 and TCL 55S423-CA differ in resolution (4K 3840 x 2160 vs UHD), which can affect overall clarity and sharpness of the display. Both TVs come with smart platforms that support popular streaming apps and voice control features. Audio output differs between the two (2 X 10 W vs 2 Channel X 8 W), which can influence overall sound clarity and loudness. Overall, both models are capable choices in their segment, offering a balance between performance, features, and usability. TCL 55P638 and TCL 55S423-CA are two competitive smart TVs offering a mix of display performance, smart features, and overall value for different types of users. Both TVs offer adequate brightness levels suitable for most indoor lighting conditions. TCL 55P638 and TCL 55S423-CA offer different motion rates (60 Hz vs 120 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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