LG C5 OLED55C5PUA vs TCL QM6K 55QM6K
The LG C5 and the TCL QM6K are two of the most talked-about 55-inch sets, and the price gap between them is big enough to make people stop and think. Both run at 144Hz and look great with games and movies. The core difference is panel tech: the C5 is an OLED with perfect blacks, while the QM6K is a Mini LED that goes much brighter for far less money.
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LG C5 OLED55C5PUA
The all-round 55-inch OLED for movies, sports and gaming.
- + Perfect blacks and infinite contrast
- + Four HDMI 2.1 ports up to 144Hz
- + Dolby Vision and Dolby Atmos
- - No HDR10+ support
- - Not as bright as a top Mini LED in a sunny room
TCL QM6K 55QM6K
Mini LED brightness and 144Hz gaming for under $500.
- + Bright Mini LED picture for the money
- + Native 144Hz with VRR
- + Supports both Dolby Vision and HDR10+
- - Some blooming around bright objects
- - Built-in speakers are thin
Who wins in which situation?
The TCL costs a fraction of the LG and still brings a bright Mini LED picture, 144Hz and both Dolby Vision and HDR10+.
OLED turns off individual pixels, so blacks are perfect and viewing angles stay wide. The TCL can show some blooming around bright objects.
The Mini LED backlight gets bright enough to fight afternoon glare, which is the one area where the LG is weaker.
All four HDMI ports on the LG are HDMI 2.1 at 144Hz, while the TCL has two, which can get tight with a console, a PC and a soundbar.
Specs side by side
| Specification | LG C5 OLED55C5PUA | TCL QM6K 55QM6K |
|---|---|---|
| Rank in our top 10 | No. 1 | No. 2 |
| Price | approx. $1,099.99 | approx. $449.99 |
| Our score | 9.4/10 | 8.9/10 |
| Reviews | 2,400+ ratings | 3,100+ ratings |
| Panel | OLED evo | QD-Mini LED |
| Refresh rate | 144Hz | 144Hz |
| HDR | Dolby Vision, HDR10, HLG | Dolby Vision IQ, HDR10+, HLG |
| Smart platform | webOS 25 | Google TV |
| HDMI 2.1 | 4 ports | 2 ports |
Our conclusion
If you watch mostly in the evening or care about the best possible picture and gaming ports, the LG C5 is the TV to buy and worth the extra money. If you want the most screen for the least cash, or your room gets a lot of daylight, the TCL QM6K is a very easy recommendation. Plan on a soundbar with the TCL, since its speakers are thin.
Both models feature in our guide The 10 Best 55-Inch TVs of 2026. There you will also find the other models, a buying guide and frequently asked questions. We compare specs, price and buyer reviews.