Which has the better picture, the onn 65" or the TCL QM6K?

The TCL QM6K. Its mini-LED backlight with up to 500 dimming zones and 120 Hz panel produce deeper blacks and smoother motion than the onn's 60 Hz LCD at 520 nits.

Is the TCL QM6K worth the extra over the onn?

Yes if you watch HDR movies, sports or games, where local dimming and 120 Hz show clearly. If you mainly stream sitcoms and want the lowest price, the onn covers the basics.

Which is better for gaming?

The TCL QM6K, because of its 120 Hz refresh rate. The onn tops out at 60 Hz, which limits fast-motion games and sports.

Does the onn have Dolby Vision and the TCL not?

The onn lists Dolby Vision, HDR10+, HDR10 and HLG. The TCL specs given confirm HDR but not Dolby Vision, so check the TCL model page if Dolby Vision matters to you.

Which has better sound without a soundbar?

The TCL QM6K, with Onkyo 2.1 channel audio, a subwoofer and Dolby Atmos. The onn relies on DTS Virtual:X processing with no subwoofer.

Which comes in more screen sizes?

The TCL QM6K, sold in 50, 55, 65, 75 and 85 inches. The onn model listed here is 65 inches only.

onn 65" 4K UHD VIZIO Smart TV vs TCL QM6K QD-Mini LED 4K TV

Buy the TCL QM6K if picture quality matters: mini-LED local dimming, 120 Hz and much higher brightness beat the onn/Vizio panel on contrast and motion. Buy the onn 65" if you want the lowest price on a 65-inch 4K set with Dolby Vision and Vizio's free WatchFree+ channels. The TCL 65-inch is $479.99 at TCL North America as of November 7, 2026, and has ranged from $427.99 to $599.99 since November 3. The onn's price was not provided, so compare it against the TCL's current $479.99 before deciding.

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