TCL R648 vs R646 Review

In 2021, we can find TCL R648 and R646 introduced by TCL as part of their TCL’s 2021 6-Series. TCL R648 comes with 2 screen size options : 75-Inch (75R648) and 65-Inch (65R648) while there are 3 screen size options available for TCL R646 : 75-Inch (75R646), 65-Inch (65R646) and 55-Inch (55R646). Although they are both introduced as part of TCL’s 2021 6-Series, we can find that TCL R648 and R646 are significantly different. I’m sure that it’s recommended for us to talk more about the key differences of TCL R648 and R646 before we can find out which of them is the one that we should choose.

TCL R648 Review

TCL R648

TCL R648

TCL R648 is introduced as TCL’s 2021 5-Series that comes with 8K UHD resolution. The backlight technology of TCL R648 is Mini-LED backlight that completed with Contrast Control Zones as its local dimming zones. Mini-LED backlight that completed with Contrast Control Zones allows us to enjoy excellent contrast vibrancy on the screen of TCL R648 while also can brings superior light uniformity across its LED screen. TCL R648 already comes with QLED display. QLED brings Quantum Dot Color that can delivers Wide Color Gamut. With Wide Color Gamut, we can enjoy rich and accurate color details on the screen of TCL R648. TCL R648 is already completed with Smart 8K Upscaling that integrated with its AiPQ Engine on top of its 8K UHD resolution. AiPQ Engine is also able to enhances the color, clarity and contrast of the picture delivered on the screen of TCL R648. HDR10, HLG and Dolby Vision are already supported by TCL R648 so that we can enjoy enhanced details and expanded contrast from wide range of HDR content sources. Natural Motion 480 is the motion technology integrated with TCL R648. It’s based on 120Hz native refresh rate that allows us to enjoy fluid motion images from our favorite action movies and sports while also allows us to enjoy minimum input lag when we use this TV as our gaming monitor. TCL R648 already supports Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM), FreeSync and G-Sync while it’s also completed with HDMI 2.1 to bring more immersive gaming experience when we use this TV as our gaming monitor. The operating system that integrated with TCL R648 is ROKU TV. It allows us to enjoy wide range of premium entertainment from our favorite content providers with fast internet connection provided by 802.11ac 2×2 Dual Band integrated with this TV. We can control TCL R648 conveniently with RC580 voice enabled remote control that included with this TV. We can also use Roku Mobile App that can be installed in our smartphone as well as Google Assistant, Amazon Alexa and Apple Siri to control TCL R648. TCL R648 comes with 15W x 2 Speakers that completed with 30W Subwoofer that allows us to enjoy rich and powerful sound. We can also enjoy higher quality audio formats with additional AV system since TCL R648 already supports eARC (Enhanced Audio Return Channel).

The key specs and features of TCL R648 can be summarized with the table below.

TCL R648
Brand TCL
Introduced 2021
Screen Size
  • 75-Inch (75R648)
  • 65-Inch (65R648)
Resolution 8K UHD (7680 x 4320)
Display Technology LED
Backlight Technology Mini LED
Dimming Technology Local Dimming (Contrast Control Zones)
Upscaling Technology Smart 8K Upscaling
Color Technology Quantum Dot Color
HDR Support
  • Dolby Vision
  • HDR10
  • HLG
Motion Technology Natural Motion 480 (120Hz Native)
Gaming Technology
  • Variable Refresh Rate (VRR)
  • Auto Low Latency Mode (ALLM)
  • FreeSync
  • G-Sync
  • THX Certified Game Mode
Picture Engine AiPQ Engine
Smart TV Platform Google TV (Android TV)
Remote Control RC580 (Voice Enabled Remote Control)
Control Support
  • Google Assistant
  • Amazon Alexa
  • Apple Siri
Built-in Wifi 802.11ac 2×2 Dual Band
Speaker System
  • 15W x 2 Speakers + 30W Subwoofer
  • Dolby Atmos / Dolby Digital Plus / Dolby Digital / PCM
  • eARC (Enhanced Audio Return Channel)
HDMI/USB
  • 4 HDMI (Two HDMI 2.1)
  • 1 USB 2.0
Price
75-Inch (75R648), Check Today’s Price on BHPhotoVideo.com here…
65-Inch (65R648), Check Today’s Price on Walmart.com here…
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TCL R646 Introduction

TCL R646

TCL R646

TCL R646 is introduced as part of TCL’s 2021 6-series that use 4K UHD resolution. It also uses QLED display that brings Quantum Dot Color. Quantum Dot Color is able to brings Wide Color Gamut that allows us to enjoy rich and accurate color details on the screen of this TV. TCL R646 is already completed with Mini-LED backlight. It’s also completed with Contrast Control Zones that works as its local dimming. Mini-LED backlight with Contrast Control Zones is able to delivers excellent contrast vibrancy between the bright and dark part of the TV screen while also can delivers superior light uniformity. AiPQ Engine is the picture engine that integrated with TCL R646. AiPQ Engine brings Smart 4K Upscaling that allows us to enjoy excellent picture clarity not only from original 4K content sources but also from non 4K contents that upscaled into near 4K picture quality. AiPQ Engine is also able to optimizes the color, contrast and clarity of the picture delivered on the screen of TCL R646. We can enjoy enhanced details and expanded contrast from wide range of HDR content sources on the screen of TCL R646 since It already supports HDR10, HDR10+, Dolby Vision and HLG. The motion technology of TCL R646 is Natural Motion 480 that based on 120Hz native refresh rate. It’s able to brings fluid motion images for our favorite action movies and sports while also can delivers minimum input lag when we use this TV as our gaming monitor. To bring more immersive gaming experience, we can also find that TCL R646 also supports Variable Refresh Rate (VRR), Auto Low Latency Mode (ALLM) and FreeSync while also completed with HDMI 2.1. Google TV is the operating system that integrated with TCL R646. It’s able to brings our favorite content providers with WiFi 6 (802.11ax) provides fast internet connection. The remote control that included with TCL R646 is RC902N. It’s voice enabled remote control that allows us to control this TV using our voice. We can also use our voice to control TCL R646 with Google Assistant and Amazon Alexa since they are already supported. TCL R646 comes with 15W + 15W audio output (75-Inch : 17W + 17W). It’s still able to delivers good sound quality with Dolby Atmos support. TCL R646 already supports eARC (Enhanced Audio Return Channel) that allows us to enjoy higher quality audio formats with additional AV system.

The table below can summarizes the key specs and features of TCL R646.

TCL R646
Brand TCL
Introduced 2021
Screen Size
  • 75-Inch (75R646)
  • 65-Inch (65R646)
  • 55-Inch (55R646)
Resolution 4K UHD (3840 x 2160)
Display Technology LED
Backlight Technology Mini-LED
Upscaling Technology Smart 4K Upscaling
Dimming Technology Local Dimming (Contrast Control Zones)
Color Technology Quantum Dot Color
HDR Support
  • Dolby Vision
  • HDR10
  • HDR10+
  • HLG
Motion Technology Natural Motion 480 (120Hz Native)
Gaming Technology
  • Variable Refresh Rate (VRR)
  • Auto Low Latency Mode (ALLM)
  • FreeSync
  • THX Certified Game Mode
Picture Engine AiPQ Engine
Smart TV Platform Roku TV
Remote Control RC902N (Voice Enabled Remote Control)
Control Support
  • Google Assistant
  • Amazon Alexa
Built-in Wifi WiFi 6 – 802.11b/g/n/ac/ax
ATSC 3.0 (NextGen TV) YES
Speaker System
  • 15W + 15W (75-Inch : 17W + 17W)
  • Dolby Atmos / Dolby Digital Plus / Dolby Digital / DTS / PCM
  • eARC (Enhanced Audio Return Channel)
HDMI/USB
  • 4 HDMI (Two HDMI 2.1)
  • 2 USB 2.0
Price
75-Inch (75R646), Check Today’s Price on BestBuy.com here…
65-Inch (65R646), Check Today’s Price on BestBuy.com here…
55-Inch (55R646), Check Today’s Price on BestBuy.com here…

What are Their Key Differences?

Based on their table of specs and features, we can find that there are few key differences between TCL R648 and R646. The first key difference, that’s also the most important one, between those two TV series comes from their display resolution. TCL R648 comes with 8K UHD resolution while TCL R646 comes with 4K UHD resolution. 8K UHD resolution (7680 x 4320) is able to delivers better clarity and details than 4K UHD resolution (3840 x 2160). The next key difference can be found in the operating system integrated with TCL R648 and R646. TCL R648 comes with Roku TV while TCL R646 comes with Google TV. Google TV and Roku TV are basically similar in main function as they both can deliver wide range of premium entertainment from our favorite content providers, but they are indeed different in additional features and  interface. In line with their different operating system, TCL R648 and R646 are also different in remote control. TCL R648 comes with RC580 remote while TCL R646 comes with RC902N remote. Both of RC580 and RC902N are already voice enabled remote control. The built-in Wireless integrated with TCL R648 and R646 are also different. TCL R648 still comes with the older 802.11ac (WiFi 5) wireless while TCL R646 comes with more advanced 802.11ax (WiFi 6). WiFi 6 is able to provides faster internet connection than WiFi 5. There’s also another key difference between TCL R648 and R646 in their HDR10+ and G-Sync support. HDR10+ is only supported by TCL R646 while G-Sync is only supported by TCL R648. HDR10+ support allows us to enjoy better HDR result from HDR10 content sources on the screen of TCL R646, while G-Sync support brings better gaming experience on the screen of TCL R648. The speaker output of TCL R648 and R646 are also different. TCL R648 comes with 15W x 2 Speakers + 30W Subwoofer while TCL R646 comes with  15W + 15W speaker (75-Inch : 17W + 17W). With additional 30W Subwoofers, TCL R648 is able to delivers more powerful surround sound than TCL R646.

TCL R648 is usually offered at the higher price than TCL R646 since it’s indeed the series that introduced with higher picture resolution. It’s recommended for us to check the price of TCL R648 and R646 to find out their latest price difference since TV prices are changing over time.

We can summarize the key differences of TCL R648 and R646 with the table below.

TCL R648 TCL R646
Resolution 8K UHD (7680 x 4320) 4K UHD (3840 x 2160)
Operating System Roku TV Google TV
Remote Control RC580 RC902N
Built-in WiFi WiFi 5 (802.11ac) WiFi 6 (802.11ax)
HDR10+ Support NO YES
G-Sync Support YES NO
Speaker Output 15W x 2 Speakers + 30W Subwoofer 15W + 15W (75-Inch : 17W + 17W)
Price Higher Lower
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Which One to Choose?

There are few key differences between TCL R648 and R646 that we have talked above. Which of them is the one to choose? Since their picture resolution are indeed different, we can easily decide based on their picture resolution. TCL R648 is the one to choose if you are looking for LED TV with 8K UHD resolution as long as you don’t mind to spend significantly higher and use Roku TV operating system.

TCL R648 Prices
75-Inch (75R648) Check Today’s Price (BHPhotoVideo.com)…
65-Inch (65R648) Check Today’s Price (Walmart.com)…

TCL R646 is the series that only comes with 4K UHD resolution and use Google TV as its operating system. TCL R646 is a good alternative choice if TCL R648 is too expensive for you and you don’t mind with 4K UHD Resolution instead of 8K UHD one. We can also find that TCL R646 also supports HDR10+ and completed with WiFi 6 that can delivers faster internet connection as its additional advantages.

TCL R646 Prices
75-Inch (75R646) Check Today’s Price (BestBuy.com)…
65-Inch (65R646) Check Today’s Price (BestBuy.com)…
55-Inch (55R646) Check Today’s Price (BestBuy.com)…

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