TCL C645 Review And Specification
  • March 1, 2025
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TCL C645 Review And Specification: A QLED Cutting-Edge Experience

The TCL C645 is a remarkable addition to the crowded mid-range TV space, delivering high-end features at an affordable price. This in-depth TCL C645 Review And Specification looks into everything from image quality to gaming performance, assisting you in deciding if this QLED TV is worth taking up space on your home entertainment system.

Display Features: Stunning Visuals That Wow

The TCL C645 leverages Quantum Dot technology to present more than a billion colors, encompassing up to 93% of the DCI-P3 color gamut. The wide color palette provides incredibly rich, vivid imagery that is real to life. From nature shows to action movies, the color accuracy is above and beyond expectations at this price point.

HDR performance is also where the TCL C645 excels. With HDR10+ and Dolby Vision support, this TV processes high dynamic range content with remarkable accuracy. Dark scenes bring out subtle shadow detail and bright spots pop without sacrificing detail, making for a cinematic experience that’s on par with more costly models.

AIPQ Engine 3.0: Intelligence Behind the Screen

The heart of the TCL C645 is the AIPQ Engine 3.0, which uses a number of AI-driven features:

  • AI-Color: Sees images the way human eyes do, adjusting color volume, saturation, and contrast for natural reproduction
  • AI-Clarity: Scans and improves low-resolution material and minimizes noise
  • AI-Motion: Picks up on quickly moving objects to reduce blur and tearing
  • AI-Contrast: Dynamically adjusts contrast ratio based on different visual conditions
  • AI-HDR: Smartly decodes multiple HDR formats for the best viewing

Sound Quality: Immersive Audio Experience

The TCL C645 doesn’t only shine in picture quality—it also impresses with its audio performance. With dual 15W speakers that are both Dolby Atmos and DTS-HD compliant, the TV provides a rather stunning soundstage.

The Dolby Atmos technology provides three-dimensional audio that surpasses traditional channel boundaries. Although less powerful than a dedicated home audio system, the onboard speakers succeed in producing decent spatial audio that complements the viewing experience.

DTS Virtual:X also enhances the audio configuration with virtualization of 3D sound that appears to come from all directions. For everyday watching, these audio features integrated in the TV take away the initial requirement for an external soundbar.

Gaming Performance: Next-Gen Consoles Ready

The TCL C645 Review And Specification would not be complete without describing its gaming capabilities. With its 120Hz Game Accelerator (on 55″, 65″, and 75″ models), HDMI 2.1 ports, AMD FreeSync support, and ALLM, this TV has most of what console gamers require.

120Hz refresh rate (obtained by TCL’s DLG technology) provides seamless motion for gaming, and AMD FreeSync avoids screen tearing. Auto Low Latency Mode (ALLM) turns on automatically to the best low-latency mode when it senses a game source.

Gaming in Dolby Vision is another highlight feature, supporting compatible games to leverage rich visuals with added depth and detail. The specific Game Bar offers easy access to pertinent settings and performance data while playing.

Smart Features: Google TV Integration

The TCL C645 uses Google TV, providing a simple interface with recommended content for the user. The platform has a central area that brings all content from several streaming services to one place and makes it easier to find new shows and films.

Google Assistant is integrated so voice control is possible for both the TV and supported smart devices at home.

Other features:

  • Google Meet to make video calls (camera extra)
  • Kid’s Profile for watching child-friendly programming
  • Google Photos integration to showcase personal memories
  • TCL Home app for operating compatible TCL devices

Complete TCL C645 Specifications :

Category Specification
General
Brand TCL
Model C645
Series C Series
Year 2023
Available Sizes 43″, 50″, 55″, 65″, 75″
Display
Panel Type DLED LCD
Technology QLED
Resolution 4K UHD (3840×2160)
Aspect Ratio 16:9
Refresh Rate 60Hz (43″, 50″) / 120Hz via DLG (55″, 65″, 75″)
System Brightness 450 nits (typical)
Contrast Ratio 6000:1 (typical)
Color Volume Up to 93% DCI-P3
HDR Support
Dolby Vision Yes
HDR10 Yes
HDR10+ Yes
HLG Yes
Image Processing
Processor AIPQ Engine 3.0
Micro Dimming Yes, 2040 Zones
Local Dimming No
MEMC Yes
AI Features AI-Color, AI-Clarity, AI-Motion, AI-Contrast, AI-HDR
Audio
Speaker Output 2×15W
Audio Technology Dolby Atmos
DTS Sound DTS-HD Decoding, DTS Virtual:X
Sound Channel 2.0 Channel
Bluetooth Audio Yes
Smart TV Features
Operating System Google TV
Voice Assistant Google Assistant Built-in
Works with Alexa No
Google Meet Yes (camera sold separately)
Kids Profile Yes
Google Photos Yes
Google Watchlist Yes
Gaming Features
Game Accelerator 120Hz (55″, 65″, 75″)
AMD FreeSync Yes (FreeSync)
ALLM Yes
VRR Yes, up to 1440p@120Hz
Game Bar Yes
Game Center Yes
Gaming in Dolby Vision Yes
Connectivity
HDMI Inputs 3 (1× HDMI 2.1 with ARC/eARC, 2× HDMI 2.0)
USB Ports 2 (1× USB 2.0 – 5V/0.5A, 1× USB 3.0 – 5V/0.9A)
Ethernet (RJ45) Yes
Composite Video Input 1 (Mini RCA)
Digital Audio Output 1 (Optical)
RF Input 1 IEC, 1 F-type (varies by region)
Bluetooth Bluetooth 5.0
Wi-Fi 2.4GHz/5GHz dual-band Wi-Fi 802.11 b/g/n 2T2R
HDMI CEC Yes, with Certification
eARC Yes, with Certification
Design
Design Metallic Bezel-Less
Flat/Curved Flat
Wall Mountable Yes (VESA, size varies by model)
Additional Features
TÜV Low Blue Light Yes
Miracast Yes
AR Fitness Yes (camera sold separately)
Airplay 2 No
USB Subtitle Support SUB/ASS/SRT/SMI
IMAX Enhanced No
TCL Home App Yes
TCL C645 Review And Specification
TCL C645 Review And Specification

Overall Star Rating:

⭐⭐⭐⭐½ (4.5/5)

Customers should give the TCL C645 a 4.5-star review because it delivers premium attributes from a budget-friendly mid-price segment. The TCL C645 delivers superb images and plays games really well besides its above-average smart functions, yet its audio lacks optimization. Its few shortcomings provide fair compensation for the economical price range of this product.

Customer Feedback Reviews

Aspect Rating Common Comments
Picture Quality 4.6/5 “Vibrant colors that pop without looking unnatural”
Sound Quality 4.2/5 “Impressive for built-in speakers, but consider a soundbar for larger rooms”
Gaming Performance 4.7/5 “Low input lag and smooth motion make this perfect for PS5/Xbox Series X”
Smart Features 4.3/5 “Google TV interface is intuitive and content recommendations are spot-on”
Value for Money 4.8/5 “Delivers features typically found in TVs costing hundreds more”

Pros and Cons

Pros:

  • Excellent QLED picture quality with vivid colors
  • Comprehensive HDR format support (Dolby Vision, HDR10+)
  • 120Hz refresh rate (on larger models) and gaming-friendly features
  • Google TV with built-in Google Assistant
  • Impressive built-in audio with Dolby Atmos and DTS support
  • Sleek, bezel-less design

Cons:

  • Only one HDMI 2.1 port
  • 120Hz refresh rate limited to 1440p (not full 4K@120Hz)
  • Smaller sizes (43″ and 50″) limited to 60Hz
  • No hands-free voice control in all regions
  • Local dimming is not available, limiting contrast performance

Verdict: Excellent Value in Mid-Range QLED TVs

According to the TCL C645 Review And Specification, this TV delivers a powerful performance even though it belongs to a specific weight category. The quantum dot display combined with complete HDR along with AI picture enhancement enables this TV to deliver equivalent visual quality to higher-priced alternatives.

The 120Hz refresh rate together with gaming-centric functions enhances gaming experiences for enthusiasts until the next-gen console limits are at their maximum potential. Consumers benefit from both exceptional streaming functions and smart management through the interface on Google TV.

The TCL C645 stands as one of the top offers in today’s TV market, aligning price with high-quality performance. This technology enables numerous buyers to get premium attributes while retaining almost all of their system’s performance and product quality.

Casual viewers, together with TV enthusiasts and experienced gamers, will find an outstanding visual experience through the TCL C645, which demonstrates TCL’s rising position in the television market.

TCL C645 FAQs :

General Questions

Q: Does a wall mount come in the box with the TCL C645?

A: No, there are only table-top stands on the TV. A VESA-compatible wall mount will need to be purchased separately.

Q: How long is the warranty of the TCL C645?

A: The TCL C645 usually comes with a 2-year manufacturer’s warranty, but that will vary based on the area. Contact your local retailer for further details about warranties.

Q: Is the TCL C645 also possible to use with voice commands via no remote?

A: Yes, TCL C645 features Google Assistant and is controlled via the remote’s microphone. Hands-free voice control is not offered in all countries.

Picture Quality

Q: What is QLED and how does it differ from an ordinary LED TV?

A: QLED TVs like the TCL C645 feature Quantum Dot technology that provides deeper color and better brightness than standard LED TVs. This provides a richer picture with a greater color gamut.

Q: Does the TCL C645 support 4K streaming from apps?

A: Yes, the TCL C645 supports 4K streaming from apps like Netflix, Amazon Prime Video, Disney+, and YouTube.

Q: How will older non-4K material appear on this TV?

A: Yes, the TCL C645 comes with AI-Clarity upscaling technology that enhances lower resolution material to almost 4K quality, though performance will be dependent on source material.

Smart Features

Q: Can I add additional apps to the TCL C645?

A: Yes, the Google TV platform allows you to download and install a huge number of apps from the Google Play Store.

Q: Are smart home devices compatible with this TV?

A: Yes, you can use compatible smart home devices with Google Assistant control over the TV.

Q: How can I activate the Kids Profile feature?

A: You can establish Kids Profile from the Google TV menu by navigating Settings > Accounts & Sign In > Add Kids Profile. You may set up content filtering and accessibility here.

Gaming Experience

Q: Is TCL C645 appropriate for PS5 and Xbox Series X gaming?

A: Yes, TCL C645 (55″, 65″, and 75″ models) has a 120Hz refresh rate, ALLM (Auto Low Latency Mode), and VRR (Variable Refresh Rate up to 1440p@120Hz), making it a great choice for next-gen console gaming.

Q: What is the gaming input lag of this TV?

A: TCL C645 has a low input lag of around 10-15ms in Game Mode, which offers seamless gaming for the majority of users.

Q: Is it possible to connect a gaming headset to this TV?

A: Yes, the TV has Bluetooth 5.0, and Bluetooth gaming headsets compatible with the TV can be connected directly.

Audio

Q: Does the TCL C645 require a soundbar?

A: Although the internal speakers yield good sound with Dolby Atmos and DTS Virtual:X support, a soundbar or external audio system would be an improvement, particularly for bigger rooms or better viewing.

Q: Is it possible to connect the TV to external speakers using Bluetooth?

A: No, the Bluetooth function on the TCL C645 is for audio reception from other devices (e.g., smartphones) and not for sending to Bluetooth speakers. For other speakers, utilize the optical output or HDMI eARC.

Q: Are wireless headphones supported by the TV?

A: Yes, you can directly connect Bluetooth headphones to the TV for personal use.

Connectivity

Q: How many devices can I connect to the HDMI ports at a time?

A: The TCL C645 has 3 HDMI inputs, so you can connect 3 HDMI devices simultaneously (e.g., gaming console, cable box, and Blu-ray player).

Q: Which HDMI input do I connect my gaming console to?

A: For the best gaming performance, connect your gaming console to the HDMI 2.1 input (usually HDMI 1) to enjoy features like 120Hz refresh rate, ALLM, and VRR.

Q: Is a USB hard drive accessible to record TV programs?

A: The USB ports on the TCL C645 are present for playback of content, but native recording capability is region-specific and may require some setup with compatible software.

Troubleshooting

Q: Why is the TV not connecting to Wi-Fi?

A:

  • Did you restart your router and TV?
  • Make sure you’re using the correct Wi-Fi password.
  • Move your router near your TV.
  • Plug in an Ethernet cable for an optimal connection.

Q: The picture is not as it should be. How do I fix it?

A:

  • TCL C645 supports multiple picture modes (Standard, Movie, Sports, etc.).
  • For optimum color accuracy, set it to “Movie” or “Filmmaker” mode.
  • Alternatively, tweak picture settings from the Picture menu.

Q: My remote is not being responsive. What should I do?

A:

  1. Change the batteries.
  2. Re-pair the remote by holding the Home button and Back button together for 5 seconds.
  3. If the issue persists, reach out to TCL support.

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