TCL 55S555 4K
Best Value Winner$279.99
The TCL 55S555 is a compelling choice in the TVs market. With 8,234 Amazon ratings averaging 4.5/5 stars, it has proven itself with real buyers. 4K UHD resolution.
TCL 50S455 4K Google vs TCL 75QM851G
Compare TCL 55S555 4K and TCL 75QM851G side by side with the specs buyers actually care about, a cleaner breakdown of strengths and tradeoffs, and a clearer verdict on which model fits different priorities.
TCL 75QM851G
$997.99
The TCL 75QM851G is a compelling choice in the TVs market. With 1,543 Amazon ratings averaging 4.5/5 stars, it has proven itself with real buyers. Mini LED with 1300+ local dimming zones.
Side-by-side specs
The table below puts the core differences in one place so buyers can quickly compare the display, performance, battery, connectivity, and value details that matter most. Highlighted cells mark the stronger value-oriented spec on each row.
| Spec | TCL 55S555 4K | TCL 75QM851G |
|---|---|---|
| Screen Size | 55 Inches | Winner75 Inches |
| Resolution | 4K | 4K |
| Display Technology | LED | QLED Mini LED |
| HDR | Dolby Vision | Dolby Vision |
| Refresh Rate | 60 Hz | Winner144 Hz |
| Local Dimming | Local Dimming | Local Dimming |
| Smart Platform | Fire TV | Google TV |
| Voice Control | WinnerAlexa | — |
| Model Year | 2023 | 2023 |
| User Rating | 4.5/5 | 4.5/5 |
| Current Price | Winner$279.99 | $997.99 |
| Model | 55S555 | 75QM851G |
| Ports | 3 | Winner4 (2x HDMI 2.1) |
TCL 55S555 4K
Standout strengths
- 4K UHD resolution
- Fire TV with Alexa built-in
- HDR with Dolby Vision
- Hands-free Alexa voice control
Main tradeoffs
- ✗ No local dimming
- ✗ Limited brightness
TCL 75QM851G
Standout strengths
- Mini LED with 1300+ local dimming zones
- 144Hz for ultra-smooth gaming
- QLED Quantum Dot color
- Dolby Vision IQ
Main tradeoffs
- ✗ Some blooming in dark scenes
What buyers should focus on
TCL 55S555 4K vs TCL 75QM851G should be judged on panel tech, screen size, HDR support, smart platform, and how much performance you get for the asking price.
TV shoppers who care about picture quality usually look at Mini-LED/QLED/OLED class differences, gaming readiness, and whether the room is bright or light-controlled.
It also matters whether you are optimizing for cinematic impact, console gaming, or getting the strongest value for everyday streaming.
Which one is better?
Winner: TCL 55S555 4K
TCL 55S555 4K is the better bang-for-your-buck winner on this page because it comes out ahead on more of the specs and value signals that matter most for buyers shopping this category. It wins here because it comes out ahead on voice control, costs less right now.
TCL 55S555 4K is the stronger pick if you want the larger-screen, more theater-style setup with its 55 Inches panel and LED display class. TCL 75QM851G makes more sense if you care more about keeping cost and size in check while still giving you a 75 Inches 4K TV. For most shoppers, the real decision is premium big-screen impact versus value-oriented everyday viewing.
Use the side-by-side table first, then open the deeper review pages if you want more context on setup, long-term ownership, and which model is the smarter buy for your exact priorities.