What Hi-Fi?
4.0 / 5
Original rating: 4 / 5
55-inch 55C745K
Read What Hi-Fi? reviewChecked 14 Sep 2026



Expert reviews. One COR Score.

The TCL C745K is a QLED TV range. Verified UK models include 55-inch and 75-inch screen sizes.
Explore screen sizes
The product, explained
The TCL C745K is a QLED TV range. Verified UK models include 55-inch and 75-inch screen sizes.
The display resolution is 3840 x 2160 pixels. The backlight specification is Full-Array. HDR support includes Dolby Vision IQ, High Dynamic Range 10+ (HDR10 Plus), Hybrid Log-Gamma (HLG). This 4K UHD pixel count is four times that of Full HD, providing the resolution needed to display compatible 4K programmes, films and games in their original pixel dimensions.
The specified refresh rate is 120 Hz. Smart TV features run on Google TV. The number of HDMI inputs is: 3 (55-inch option); 4 (75-inch option). A 120Hz refresh specification corresponds to 120 display updates per second. It is separate from the response time and input lag measured in a review.
The number of USB 2.0 ports is 1. Wi-Fi support is recorded as Yes. Bluetooth support is recorded as Yes.
The TCL C745K catalogue includes 2 verified UK model options. The sourced specifications differ in HDMI input count, so size and model code matter. The specifications below identify each model separately, while the COR Score combines critic ratings for the range.
Written automatically from verified product specifications. Expert assessments are linked below.
Independent perspectives
Independent ratings, converted to the same five-point scale. Each card links to the original review.
4.0 / 5
Original rating: 4 / 5
55-inch 55C745K
Read What Hi-Fi? review ↗Checked 14 Sep 2026
4.5 / 5
Original rating: 4.5 / 5
55-inch 55C745K
Read Home Cinema Choice review ↗Checked 14 Sep 2026
Know exactly what you’re buying
Choose an exact UK model. Specifications and supplied accessories can differ between sizes and editions.
| Screen Size | 55 inch |
|---|---|
| Resolution | 3840 x 2160 pixels |
| HD type | 4K Ultra HD |
| Display technology | QLED |
| Backlight | Full-Array |
| Refresh Rate | 120 Hz |
| HDR (High Dynamic Range) | Dolby Vision IQ, High Dynamic Range 10+ (HDR10 Plus), Hybrid Log-Gamma (HLG) |
| HDMI | 3 |
| USB 2.0 ports | 1 |
| Wi-Fi | Yes |
| Bluetooth | Yes |
| Smart TV platform | Google TV |
Specification source: Icecat product 110848073. UK model: 55C745K. · Checked 14 Sep 2026
Exact model: 55C745K · Icecat product ID 110848073 · Checked 14 Sep 2026. The overview above is selected from this exact datasheet.
| Display diagonal | 139.7 cm (55") |
|---|---|
| HD type | 4K Ultra HD |
| Display technology | QLED |
| LED backlighting type | Full-Array |
| Screen shape | Flat |
| Native aspect ratio | 16:9 |
| Native refresh rate | 120 Hz |
| Display resolution | 3840 x 2160 pixels |
| Display diagonal (metric) | 139.7 cm |
| Viewable size diagonal | 139 cm |
| Tuner type | Analog & digital |
| Digital signal format system | DVB-C, DVB-S2, DVB-T2 |
| Supported TV bands | DTV |
| Smart TV | Yes |
| Internet TV | Yes |
| Operating system installed | Google TV |
| Operating system version | Google TV |
| Screen mirroring | Yes |
| Apple AirPlay 2 support | Yes |
| Sound mirroring | Yes |
| Smart modes | Dolby Vision, IMAX Enhanced, Sports |
| Video apps | Apple TV, Disney+, Google TV, Hulu+, Netflix, Twitch, YouTube |
| Music apps | Apple Music, Deezer, Spotify, Tidal, YouTube Music |
| Lifestyle apps | Google Apps |
| Number of speakers | 2 |
| RMS rated power | 15 W |
| Audio output channels | 2.0 channels |
| Audio decoders | DTS, Dolby Atmos, DTS Virtual:X, Dolby Digital AC4, Dolby TrueHD |
| Sound modes | Sports |
| Enhanced Audio Return Channel (eARC) | Yes |
| Wi-Fi | Yes |
| Wi-Fi standards | 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Bluetooth | Yes |
| Bluetooth version | 5.0 |
| Ethernet LAN | No |
| Miracast | Yes |
| Product colour | Black |
| VESA mounting | Yes |
| Panel mounting interface | 400 x 300 mm |
| Frameless design | Yes |
| Introduction year | 2023 |
| Bezel type | 4 Bezel-less |
| Stand type | Center stand |
| Stand colour | Black |
| High Dynamic Range (HDR) technology | Dolby Vision IQ, High Dynamic Range 10+ (HDR10 Plus), Hybrid Log-Gamma (HLG) |
| Game mode | Yes |
| Teletext function | Yes |
| Subtitles function | Yes |
| Video formats supported | H.264, H.265, MPEG2 |
| Dolby Vision | Yes |
| AI Upscale | Yes |
| Backlight dimming technology | Local Dimming |
| Picture processing technology | TCL AiPQ 3.0 Engine, TCL AiPQ 3.0 Processor |
| High Dynamic Range (HDR) supported | Yes |
| Processor cores | 4 |
| Image gallery | Yes |
| Multi-screen | Yes |
| AMD FreeSync | Yes |
| AMD FreeSync type | FreeSync Premium |
| Game features | Auto Low Latency Mode (ALLM), Game Bar, Game Master, Variable Refresh Rate (VRR) |
| 4K Ultra HD upscaling | Yes |
| Auto standby | Yes |
| Adaptive picture | Yes |
| Video upscaling | Yes |
| Child lock | Yes |
| Parental control | Yes |
| USB recording | No |
| HDMI version | 2.0/2.1 |
| Audio Return Channel (ARC) | Yes |
| HDCP | Yes |
| PC in (D-Sub) | No |
| Ethernet LAN (RJ-45) ports | 1 |
| USB connectivity | Yes |
| USB 2.0 ports quantity | 1 |
| Component video (YPbPr/YCbCr) in | 1 |
| Composite video in | 1 |
| Digital audio optical out | 1 |
| Headphone outputs | 1 |
| RF ports quantity | 2 |
| RF connector type | F, IEC |
| Common interface (CI) | Yes |
| HDMI ports quantity | 3 |
| AC (power) in | Yes |
| Voice control | Yes |
| Electronic Programme Guide (EPG) | Yes |
| Hotel mode | Yes |
| Basic hotel mode | Yes |
| Sleep timer | Yes |
| Works with Amazon Alexa | Yes |
| Works with the Google Assistant | Yes |
| Energy efficiency class (SDR) | F |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 77 kWh |
| Energy consumption (HDR) per 1000 hours | 190 kWh |
| AC input voltage | 220 - 240 V |
| Sound technology | Dolby Atmos |
| Width (with stand) | 1225 mm |
| Depth (with stand) | 316 mm |
| Height (with stand) | 771 mm |
| Weight (with stand) | 14.2 kg |
| Width (without stand) | 1225 mm |
| Depth (without stand) | 70 mm |
| Height (without stand) | 711 mm |
| Weight (without stand) | 13.1 kg |
| Stand width | 35.5 cm |
| Stand depth | 31.6 cm |
| Screws included | Yes |
| Quick start guide | Yes |
| Manual | Yes |
| Package width | 395 mm |
| Package depth | 146 mm |
| Package height | 857 mm |
| Package weight | 16.8 kg |
| Desktop stand | Yes |
| Mounting kit | Yes |
| Cables included | AC |
| Remote control included | Yes |
| Remote control type | Buttons |
| Smart Remote included | Yes |
| Harmonized System (HS) code | 85287280 |
| Hybrid Log-Gamma (HLG) | Yes |
| Quantum dot color technology | Yes |
| 3D | No |
| Motion control | Yes |
| Wi-Fi ready | Yes |
| 4 sides bezel-less design | Yes |
| Built-in speaker(s) | Yes |
| Apple HomeKit support | Yes |
| Instant Game Response | Yes |
| Channels quantity (DVB-C) | 1 |
| Channels quantity (DVB-S2) | 1 |
| Channels quantity (DVB-T) | 1 |
| Cord length | 1.5 m |
| HDMI | Yes |
| Country of origin | Poland |
| Dimensions (W x D x H) with stand | 1225 x 316 x 771 mm |
| Mains power | Yes |
| Power cord included | Yes |
| Picture mode | Sports Mode |
| DVB | Yes |
| Multimedia | Yes |
| Picture performance | 3900 |
| Power consumption (active) | 77 W |
| Stand | Yes |
| Smart TV applications | Netflix, YouTube, Amazon Prime, AppleTV+, Google Play Store, TCL Home, Google Home, Apple Home Kit, Alexa Smart Home, Matter |
| USB ports quantity | 1 |
| Analogue tuner | Yes |
| Brand-specific features | 240Hz Game Accelerator |
| DVB-T2 tuner | Yes |
| HDMI in | 4 |
| RJ-45 input ports | 1 |
| Dimensions (with stand) (WxHxD) | 1225 x 771 x 316 mm |
| Colour gamut | 100% |
| Stand weight | 11 kg |
| Screen Size | 75 inch |
|---|---|
| Resolution | 3840 x 2160 pixels |
| HD type | 4K Ultra HD |
| Display technology | QLED |
| Backlight | Full-Array |
| Refresh Rate | 120 Hz |
| HDR (High Dynamic Range) | Dolby Vision IQ, High Dynamic Range 10+ (HDR10 Plus), Hybrid Log-Gamma (HLG) |
| HDMI | 4 |
| USB 2.0 ports | 1 |
| Wi-Fi | Yes |
| Bluetooth | Yes |
| Smart TV platform | Google TV |
Specification source: Icecat product 110872243. UK model: 75C745K. · Checked 14 Sep 2026
Exact model: 75C745K · Icecat product ID 110872243 · Checked 14 Sep 2026. The overview above is selected from this exact datasheet.
| Display diagonal | 190.5 cm (75") |
|---|---|
| HD type | 4K Ultra HD |
| Display technology | QLED |
| LED backlighting type | Full-Array |
| Screen shape | Flat |
| Native aspect ratio | 16:9 |
| Motion interpolation technology | ME/MC (Motion Estimation Motion Compensation) |
| Native refresh rate | 120 Hz |
| Display refresh rates supported | 100 Hz, 120 Hz, 144 Hz |
| Display resolution | 3840 x 2160 pixels |
| Display diagonal (metric) | 190.5 cm |
| Peak luminance ratio | 65% |
| Viewable size diagonal | 189 cm |
| Tuner type | Analog & digital |
| Digital signal format system | DVB-C, DVB-S2, DVB-T2 |
| Supported TV bands | DTV |
| Smart TV | Yes |
| Internet TV | Yes |
| Operating system installed | Google TV |
| Operating system version | Google TV |
| Screen mirroring | Yes |
| Apple AirPlay 2 support | Yes |
| Sound mirroring | Yes |
| Hybrid Broadcast Broadband TV (HbbTV) | Yes |
| Hybrid Broadcast Broadband TV (HbbTV) version | 2.0.2 |
| Smart modes | Dolby Vision, IMAX Enhanced, Sports |
| App distribution platform | Google Play |
| Video apps | Apple TV, Disney+, Google TV, Hulu+, Netflix, Twitch, YouTube |
| Music apps | Apple Music, Deezer, Spotify, Tidal, YouTube Music |
| Sports apps | Red Bull TV |
| Lifestyle apps | Google Apps |
| Number of speakers | 2 |
| RMS rated power | 15 W |
| Audio output channels | 2.0 channels |
| Audio decoders | DTS, Dolby Atmos, DTS Virtual:X, Dolby Digital AC4, Dolby TrueHD |
| Equalizer | Yes |
| Equalizer bands quantity | 7 |
| Sound modes | Sports |
| Auto volume leveller | Yes |
| Adaptive sound | Yes |
| Enhanced Audio Return Channel (eARC) | Yes |
| Wi-Fi | Yes |
| Wi-Fi standards | 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac) |
| Bluetooth | Yes |
| Bluetooth version | 5.0 |
| Ethernet LAN | No |
| Bluetooth profiles | SBC |
| Miracast | Yes |
| Web browser | Yes |
| Product colour | Black |
| VESA mounting | Yes |
| Panel mounting interface | 400 x 300 mm |
| Frameless design | Yes |
| Introduction year | 2023 |
| Bezel type | 4 Bezel-less |
| Stand type | Center stand |
| Stand colour | Black |
| High Dynamic Range (HDR) technology | Dolby Vision IQ, High Dynamic Range 10+ (HDR10 Plus), Hybrid Log-Gamma (HLG) |
| Game mode | Yes |
| Teletext function | Yes |
| Subtitles function | Yes |
| Video formats supported | H.264, H.265, MPEG2 |
| Dolby Vision | Yes |
| AI Upscale | Yes |
| Backlight dimming technology | Local Dimming |
| Picture processing technology | TCL AiPQ 3.0 Engine, TCL AiPQ 3.0 Processor |
| High Dynamic Range (HDR) supported | Yes |
| Processor cores | 4 |
| Image gallery | Yes |
| Multi-screen | Yes |
| AMD FreeSync | Yes |
| AMD FreeSync type | FreeSync Premium |
| Game features | Auto Low Latency Mode (ALLM), Game Bar, Game Master, Variable Refresh Rate (VRR) |
| 4K Ultra HD upscaling | Yes |
| Auto standby | Yes |
| Adaptive picture | Yes |
| Video upscaling | Yes |
| Child lock | Yes |
| Parental control | Yes |
| Smartphone/tablet remote support | Yes |
| USB recording | No |
| HDMI version | 2.1 |
| Audio Return Channel (ARC) | Yes |
| HDCP | Yes |
| PC in (D-Sub) | No |
| Ethernet LAN (RJ-45) ports | 1 |
| USB connectivity | Yes |
| USB 2.0 ports quantity | 1 |
| Component video (YPbPr/YCbCr) in | 1 |
| Composite video in | 1 |
| Digital audio optical out | 1 |
| Headphone outputs | 1 |
| Headphone out | Yes |
| RF ports quantity | 2 |
| RF connector type | F, IEC |
| Common interface (CI) | Yes |
| HDMI ports quantity | 4 |
| AC (power) in | Yes |
| Voice control | Yes |
| Electronic Programme Guide (EPG) | Yes |
| Hotel mode | Yes |
| Basic hotel mode | Yes |
| Auto power off | Yes |
| Sleep timer | Yes |
| Works with Amazon Alexa | Yes |
| Works with the Google Assistant | Yes |
| Energy efficiency class (SDR) | G |
| Energy efficiency class (HDR) | G |
| Energy consumption (SDR) per 1000 hours | 140 kWh |
| Energy consumption (HDR) per 1000 hours | 285 kWh |
| AC input voltage | 220 - 240 V |
| Sound technology | Dolby Atmos, DTS-HD |
| Internal memory | 3000 MB |
| Processor | Dolby Atmos, DTS Virtual-X, Virtualization & upmix |
| Width (with stand) | 1668 mm |
| Depth (with stand) | 331 mm |
| Height (with stand) | 1022 mm |
| Weight (with stand) | 29.6 kg |
| Width (without stand) | 1668 mm |
| Depth (without stand) | 75 mm |
| Height (without stand) | 966 mm |
| Weight (without stand) | 28.5 kg |
| Stand width | 48 cm |
| Stand depth | 33.1 cm |
| Screws included | Yes |
| Quick start guide | Yes |
| Manual | Yes |
| Package width | 1850 mm |
| Package depth | 188 mm |
| Package height | 1120 mm |
| Package weight | 39.8 kg |
| Package type | Box |
| Desktop stand | Yes |
| Mounting kit | Yes |
| Cables included | AC |
| Remote control included | Yes |
| Remote control type | Buttons |
| Smart Remote included | Yes |
| Harmonized System (HS) code | 85287280 |
| Hybrid Log-Gamma (HLG) | Yes |
| Quantum dot color technology | Yes |
| 3D | No |
| Motion control | Yes |
| Wi-Fi ready | Yes |
| 4 sides bezel-less design | Yes |
| Built-in speaker(s) | Yes |
| Apple HomeKit support | Yes |
| Instant Game Response | Yes |
| Channels quantity (DVB-C) | 1 |
| Channels quantity (DVB-S2) | 1 |
| Channels quantity (DVB-T) | 1 |
| Cord length | 1.5 m |
| HDMI | Yes |
| Country of origin | Poland |
| Dimensions (W x D x H) with stand | 1668 x 331 x 1022 mm |
| Mains power | Yes |
| Power cord included | Yes |
| Picture mode | Sports Mode |
| Multimedia | Yes |
| Picture performance | 3900 |
| Power consumption (active) | 285 W |
| Stand | Yes |
| Smart TV applications | Netflix, YouTube, Amazon Prime, AppleTV+, Google Play Store, TCL Home, Google Home, Apple Home Kit, Alexa Smart Home, Matter |
| USB ports quantity | 1 |
| DVB | Yes |
| Analogue tuner | Yes |
| Brand-specific features | 240Hz Game Accelerator |
| DVB-T2 tuner | Yes |
| HDMI in | 4 |
| RJ-45 input ports | 1 |
| Dimensions (with stand) (WxHxD) | 1668 x 1022 x 331 mm |
| Luminance | 65% |
| Colour gamut | 100% |
| Stand weight | 11 kg |
Clear and consistent
We convert each critic rating to a five-point scale and calculate an equally weighted average. Each publisher counts once: 8/10 becomes 4.0/5, for example. The average is rounded to one decimal place.
Scores based on fewer than three critics are provisional. Products without a usable rating stay unrated. Reviews are grouped by model family; a family score is not a separate test of every screen size.