Samsung QN900D 65" (8K) vs TCL S4 55"
Samsung's QN900D represents flagship 8K technology with exceptional specifications across every dimension. Its Neo QLED Mini-LED display delivers 4000 nits peak brightness, 8K resolution at 120Hz, and advanced Quantum HDR processing. The 6.2.4 channel Object Tracking Sound Pro system with Dolby Atmos provides immersive audio, while 5ms input lag and ALLM support satisfy gaming enthusiasts. TCL's S4 delivers reliable 4K performance at an accessible price point, featuring Google TV, Dolby Vision, and adequate connectivity for casual viewing. However, its 400-nit brightness, basic 2.0 speaker configuration, and absence of gaming optimizations limit competitive appeal. For serious videophiles and gamers, Samsung's advanced processing, superior brightness, and gaming credentials justify the investment. Budget-conscious buyers gain solid 4K entertainment value with TCL. Samsung clearly dominates on performance and features—recommend QN900D for premium experiences, S4 for budget 4K viewing.
Full Specifications
| Spec | Samsung QN900D 65" (8K) | TCL S4 55" |
|---|---|---|
| Body | ||
| VESA mount | 400 x 400mm | 200 x 200mm |
| Weight | 61.7 lbs | 28.7 lbs |
| Dimensions (w/ stand) | 57.1 x 36.8 x 12.7 inches | 48.5 x 32.4 x 9.2 inches |
| Audio | ||
| Output (watts) | 90 | 15 |
| Speakers | 6.2.4ch Object Tracking Sound Pro | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 5 | 30 |
| Display | ||
| HDR | Quantum HDR 64x, HDR10+, HLG | HDR10, Dolby Vision, HLG |
| Size | 65" | 55" |
| Type | Neo QLED Mini-LED | LED |
| Resolution | 7680 x 4320 (8K) | 3840 x 2160 (4K UHD) |
| Refresh rate | 120Hz (8K@120Hz) | 60Hz |
| Brightness (nits) | 4000 | 400 |
| Smart TV | ||
| Os | Tizen OS | Google TV |
| Voice assistant | Bixby, Alexa, Google Assistant | Google Assistant |
| Processor | ||
| Chipset | Neural Quantum Processor 8K | AiPQ Lite Processor |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6E | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.3 | 5.0 |
| USB ports | 3 | 1 |
| HDMI ports | 4 | 3 |
Category Scores
Pros & Cons
Samsung QN900D 65" (8K)
Pros
- True 8K resolution with AI-powered upscaling for lower-resolution content
- Mini-LED backlighting with thousands of dimming zones for stunning contrast
- 90W 6.2.4ch audio system with Dolby Atmos is best-in-class built-in sound
- 8K@120Hz via HDMI 2.1 future-proofs for next-gen content
- Infinity Screen design with near-zero bezels
Cons
- Extremely expensive at $4,999 for very limited 8K content
- Tizen OS still shows ads on the home screen
- Massive and heavy — requires sturdy mounting
- No Dolby Vision support — Samsung uses HDR10+ exclusively
TCL S4 55"
Pros
- Extraordinary value at $279 for a 55-inch 4K Google TV
- Google TV offers access to virtually every streaming service out of the box
- Lightweight and easy to install — great for bedrooms, kitchens, or secondary rooms
- Decent picture for casual streaming at typical 8–10 foot viewing distances
Cons
- 60Hz panel is not suitable for gaming or fast-motion sports content
- Low peak brightness of ~400 nits struggles in bright, sunlit rooms
- No HDMI 2.1 — limits PS5 and Xbox Series X to 4K@60Hz only
- 15W audio output is thin and lacks bass — an external soundbar is recommended
- No VRR or ALLM means gaming performance is not a priority for this model
Related Comparisons
Explore more in tvs, see all Samsung products or all TCL products. View full details for the Samsung QN900D 65" (8K) or the TCL S4 55".