TCL S4 55" vs Vizio OLED 55"
The Verdict
Picture quality separates these TVs dramatically. Vizio's OLED panel delivers perfect blacks, infinite contrast, and 600 nits brightness versus TCL's LED with 400 nits,a critical difference for dark room viewing. Gaming favors Vizio decisively: 120Hz refresh rate, VRR, ALLM, and 10ms input lag obliterate TCL's 60Hz, 30ms performance. Audio performance leans Vizio with 30W Dolby Atmos support compared to TCL's basic 15W 2.0 setup. TCL excels primarily on value,at $279 it offers respectable 4K, Google TV, and acceptable brightness for bright rooms. Vizio's $999 premium reflects genuine technology superiority: superior display tech, gaming features, and audio that justify the cost for serious viewers. Budget-conscious buyers get decent entry-level performance with TCL. Those prioritizing picture quality and gaming should invest in Vizio.
Who Should Buy
Buy the TCL S4 55" if…
- →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
Buy the Vizio OLED 55" if…
- →Most affordable 55-inch OLED at $999 — perfect blacks at a budget price
- →Dolby Vision, HDR10+, and Dolby Atmos — supports all major formats
- →120Hz with VRR and ALLM — capable gaming display
Category Scores
Pros & Cons
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
Vizio OLED 55"
Pros
- Most affordable 55-inch OLED at $999 — perfect blacks at a budget price
- Dolby Vision, HDR10+, and Dolby Atmos — supports all major formats
- 120Hz with VRR and ALLM — capable gaming display
- Infinite contrast ratio with pixel-perfect black levels
- 4x HDMI ports including HDMI 2.1 for next-gen consoles
Cons
- SmartCast OS is the weakest smart TV platform — buggy and slow
- Only 600 nits peak brightness — dimmer than LG and Samsung OLEDs
- Vizio has exited the TV market — long-term software support uncertain
- Image processing quality trails LG, Sony, and Samsung OLED models
- Build quality feels inferior to similarly priced LG A2 OLED
Full Specifications
| Spec | TCL S4 55" | Vizio OLED 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 28.7 lbs | 33.5 lbs |
| Dimensions (w/ stand) | 48.5 x 32.4 x 9.2 inches | 48.2 x 29.7 x 10.0 inches |
| Dimensions | — | 48.2 x 28.0 x 1.5 inches |
| Audio | ||
| Output (watts) | 15 | 30 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 30 | 10 |
| Display | ||
| HDR | HDR10, Dolby Vision, HLG | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 55" | 55" |
| Type | LED | OLED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 120Hz |
| Brightness (nits) | 400 | 600 |
| Smart TV | ||
| Os | Google TV | SmartCast (Chromecast built-in) |
| Voice assistant | Google Assistant | Google Assistant, Alexa |
| Processor | ||
| Chipset | AiPQ Lite Processor | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 6 |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 1 | 1 |
| HDMI ports | 3 | 4 |
Related Comparisons
This comparison is based on verified manufacturer specifications covering display, performance, camera, battery, and build quality. Scores are generated by analyzing specs across weighted categories on a 10-point scale. Learn more about our methodology.
Explore more in tvs, see all TCL products or all Vizio products. View full details for the TCL S4 55" or the Vizio OLED 55".