LG B4 55" vs TCL S4 55"
LG's B4 OLED delivers superior picture quality with 1100 nits peak brightness, superior contrast ratios, and advanced Dolby Vision IQ processing compared to TCL's entry-level LED panel. Gaming performance heavily favors the B4, featuring 120Hz refresh rate, 1ms input lag, VRR, and ALLM versus the S4's 60Hz, 30ms lag, and no gaming features. Audio is significantly better on LG with 40W Dolby Atmos sound versus TCL's basic 15W system. The S4 compensates with exceptional value at $279 and lighter weight, making it suitable for casual viewers on tight budgets. However, the LG B4 at $1199 justifies its premium through OLED's superior contrast, HDR performance, gaming capabilities, and AI processing power. For anyone prioritizing picture quality, gaming, or long-term satisfaction, the B4 is the clear choice despite the substantial price difference.
Full Specifications
| Spec | LG B4 55" | TCL S4 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 41.9 lbs | 28.7 lbs |
| Dimensions (w/ stand) | 48.4 x 32.1 x 10.5 inches | 48.5 x 32.4 x 9.2 inches |
| Audio | ||
| Output (watts) | 40 | 15 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 30 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | HDR10, Dolby Vision, HLG |
| Size | 55" | 55" |
| Type | OLED | LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
| Refresh rate | 120Hz | 60Hz |
| Brightness (nits) | 1100 | 400 |
| Smart TV | ||
| Os | webOS 24 | Google TV |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Google Assistant |
| Processor | ||
| Chipset | α8 Gen 7 AI Processor 4K | AiPQ Lite Processor |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 (802.11ac) | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 3 | 1 |
| HDMI ports | 4 | 3 |
Category Scores
Pros & Cons
LG B4 55"
Pros
- Lowest-cost entry into LG's OLED lineup with the same perfect blacks
- All four HDMI ports with VRR and ALLM at 4K@120Hz for gaming
- Dolby Vision and Dolby Atmos at an entry OLED price
- webOS 24 is one of the best smart TV interfaces available
Cons
- Only two HDMI 2.1 ports — the other two are HDMI 2.0 (limited to 4K@60Hz)
- α8 processor is noticeably weaker than the C4's α9 for upscaling and processing
- Lower peak brightness than the C4 or G4 — HDR highlights lack some punch
- No Wi-Fi 6, which limits wireless bandwidth in crowded network environments
- OLED burn-in risk remains a concern for heavy static-content users
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 LG products or all TCL products. View full details for the LG B4 55" or the TCL S4 55".