TCL Class QM6K Series QD-Mini LED QLED 4K UHD Smart Google TV vs Toshiba Z670R 55-Inch
Both are 55-inch QLED mini-LED sets with 144Hz panels and HDMI 2.1, so the picture hardware is close. The TCL QM6K is the better value: $427.99 at Amazon versus $447.97 for the Toshiba Z670R at Amazon, both as of November 3, 2026. Pick the Toshiba only if you want Fire TV and Dolby Vision IQ.
Today the TCL Class QM6K Series QD-Mini LED QLED 4K UHD Smart Google TV costs $19.98 less at its best price.
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TCL Class QM6K Series QD-Mini LED QLED 4K UHD Smart Google TV
4.6Choose the TCL QM6K if you want the lower price, Google TV, and a set sold by 4 stores so you can compare deals.
- Lowest price of the two at $427.99.
- ONKYO 2.1 audio with a subwoofer and Dolby Atmos.
- Comes in five sizes up to 85 inches.
- Google TV with all three major voice assistants.
- Sold by 4 stores, so prices are easier to compare.
What separates them
| TCL Class QM6K Series QD-Mini LED QLED 4K UHD Smart Google TV | Toshiba Z670R 55-Inch | |
|---|---|---|
| Price (as of November 3, 2026) | $427.99 at Amazon | $447.97 at Amazon |
| Operating system | Google TV with Google Assistant, Alexa and Siri support | Fire TV with Alexa |
| HDR formats | HDR and HDR10+ support, no Dolby Vision listed | Dolby Vision IQ, HDR10+, HDR10+ Adaptable, HLG |
| Refresh rate | 144Hz native panel, Motion Rate 480, Game Accelerator 288 | 144Hz with AMD FreeSync Premium and ALLM |
| Audio | ONKYO 2.1 channel, 40W, built-in subwoofer, Dolby Atmos and DTS Virtual:X | Not specified in the listing |
| Screen sizes | 50, 55, 65, 75 and 85 inches | 55 inches only |
| Stores selling it new | 4 stores |
Price history
- TCL Class QM6K Series QD-Mini LED QLED 4K UHD Smart Google TV: lowest $329.99 on Nov 3 at NFM.
- Toshiba Z670R 55-Inch: lowest $447.97 on Nov 3 at Amazon.
Prices at every store
TCL Class QM6K Series QD-Mini LED QLED 4K UHD Smart Google TV
- Best BuyNew
In stock
$429.99Observed at 11:58 AM - Macy'sNew
In stock
$469.99Free shippingObserved at 7:55 AM - PC Richard & SonNew
In stock
$427.99+ $999.99 shippingObserved at 7:55 AM - AmazonNew
Availability unknown
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$427.99Free shippingObserved at 7:55 AM
Also available at
- eBayCheck price at eBay
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- TargetCheck price at Target
Specs compared
| Spec | TCL Class QM6K Series QD-Mini LED QLED 4K UHD Smart Google TV | Toshiba Z670R 55-Inch |
|---|---|---|
| Refresh Rate | 120 Hz | 144Hz |
| Screen Size | 50 inches, 55 inches, 65 inches, 75 inches, 85 … | 55 inches |
| Resolution | 3840 x 2160 | — |
| High Definition | Yes | — |
| HDTV Format | 4K | — |
| Color | Black | — |
| Screen Form | Flat | — |
| Display Type | LED | — |
| Assistant Support | Google Assistant, Amazon Alexa, Siri | — |
| HDR | Yes | — |
What reviewers say
TCL Class QM6K Series QD-Mini LED QLED 4K UHD Smart Google TV
With a 4.6 out of 5 average from 3,500 ratings, owners largely treat the QM6K as strong value for a Mini-LED set. Praise centers on picture contrast, brightness and gaming features for the money. Complaints tend to be about the smart interface and sound quality.
- Bright, high-contrast picture for the price
- Smooth motion for sports and games
- Good color out of the box
- Easy setup and useful Google TV apps
- Google TV menus feel cluttered
- Built-in speakers are just adequate
- Some visible blooming in dark scenes on smaller sizes
Toshiba Z670R 55-Inch
Owner feedback on Toshiba's Z670R-series Fire TVs is generally positive on value, with buyers citing bright HDR highlights and smooth gaming at 120Hz or 144Hz. Complaints tend to focus on the Fire TV home screen and visible blooming in dark scenes.
Questions and answers
- Which has the better picture?
- They are close. Both use QLED mini-LED panels with local dimming at 144Hz. The TCL publishes a 7000:1 native contrast and 93% DCI-P3; the Toshiba adds Dolby Vision IQ, which helps with Dolby content.
- Which is better for gaming?
- Both have 144Hz panels and HDMI 2.1. The Toshiba lists AMD FreeSync Premium and ALLM; the TCL lists Game Accelerator 288 and Auto Game Mode. Pick by your console or GPU's sync support.
- Is the Toshiba worth the extra $19.98?
- Only if you want Fire TV and Dolby Vision IQ. Otherwise the TCL costs less and adds a subwoofer and more screen sizes.
- Which has better sound?
- The TCL. It has an ONKYO 2.1 system with a built-in subwoofer, 40W total, plus Dolby Atmos and DTS Virtual:X. Toshiba does not publish audio specs for the Z670R.
- Which is easier to find on sale?
- The TCL. Four stores price it new versus one for the Toshiba, and its price moved from $549.99 on October 28 to $329.99 on November 3.
- Do both support voice assistants?
- Yes. The TCL works with Google Assistant, Alexa and Siri; the Toshiba uses Alexa through Fire TV.
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