Sony X77L 55" vs TCL S4 55"
The Verdict
Both 55-inch models deliver 4K resolution at 400 nits brightness, but Sony's X77L demonstrates superior engineering where it matters most. Sony's X1 4K HDR processor outperforms TCL's AiPQ Lite, producing noticeably better contrast and color accuracy in practical viewing. Gaming performance favors Sony with 15ms input lag versus TCL's 30ms, plus Sony includes ALLM support for seamless console switching. Audio output edges to Sony at 20W versus 15W through identical 2.0ch configurations. TCL compensates with Dolby Vision support and an attractive $270 price advantage, making it exceptional value for budget-conscious buyers prioritizing basic 4K viewing. However, Sony's superior picture processing, gaming capabilities, and extra HDMI port justify the premium for those seeking noticeably better image quality and responsiveness. Choose Sony for demonstrable picture and performance excellence; choose TCL for maximum savings without significant compromises.
Who Should Buy
Buy the Sony X77L 55" if…
- →Sony's color accuracy and motion handling are superior to budget competitors
- →Google TV with Chromecast built-in and Apple AirPlay 2
- →Four HDMI ports are generous at this price
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
Category Scores
Pros & Cons
Sony X77L 55"
Pros
- Sony's color accuracy and motion handling are superior to budget competitors
- Google TV with Chromecast built-in and Apple AirPlay 2
- Four HDMI ports are generous at this price
- Motionflow XR produces smooth motion for sports and movies
- Clean, minimalist design fits any room
Cons
- 60Hz panel — not ideal for gaming or fast action
- No Dolby Vision — surprising for a Sony TV
- 400-nit brightness is low for HDR content
- No VRR for next-gen console gaming
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
Full Specifications
| Spec | Sony X77L 55" | TCL S4 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 27.6 lbs | 28.7 lbs |
| Dimensions (w/ stand) | 48.5 x 30.9 x 10.6 inches | 48.5 x 32.4 x 9.2 inches |
| Audio | ||
| Output (watts) | 20 | 15 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 15 | 30 |
| Display | ||
| HDR | HDR10, HLG | HDR10, Dolby Vision, HLG |
| Size | 55" | 55" |
| Type | LED | LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
| Refresh rate | 60Hz | 60Hz |
| Brightness (nits) | 400 | 400 |
| Smart TV | ||
| Os | Google TV | Google TV |
| Voice assistant | Google Assistant, Alexa, Apple AirPlay 2 | Google Assistant |
| Processor | ||
| Chipset | X1 4K HDR Processor | AiPQ Lite Processor |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 2 | 1 |
| HDMI ports | 4 | 3 |
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.
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