LG C4 65" vs TCL 5-Series S555 65" (QLED)
The Verdict
LG's C4 OLED commands a $1200 premium through superior display technology and performance metrics that justify premium pricing for serious viewers. Its OLED evo panel delivers infinite contrast, exceptional color accuracy with Dolby Vision IQ support, and peak brightness of 1300 nits,ideal for bright rooms. Gaming performance excels with 1ms input lag, full ALLM/VRR support, and the advanced α9 Gen 7 processor. Audio output reaches 60W across 2.2 channels with Dolby Atmos immersion. TCL's S555 QLED offers remarkable budget value with 120Hz gaming, respectable 800-nit brightness, and Google TV's intuitive interface,just 8ms input lag suits casual gaming. However, LCD technology limits contrast range, audio drops to 24W stereo, and the less refined processing makes upscaling noticeably weaker. For movie enthusiasts, gamers, or content creators demanding reference-grade picture quality, the C4 justifies its investment. Budget-conscious families prioritizing screen size and basic smart features will appreciate S555's accessibility without regret.
Who Should Buy
Buy the LG C4 65" if…
- →Perfect black levels from self-emissive OLED pixels — best-in-class contrast
- →All four HDMI 2.1 ports at full bandwidth with VRR, ALLM, and G-Sync Compatible
- →1ms input lag makes it one of the best gaming TVs at any price
Buy the TCL 5-Series S555 65" (QLED) if…
- →65-inch 4K with 120Hz and VRR at $599 is outstanding value
- →Both Dolby Vision and HDR10+ support — rare at this price
- →QLED color enhancement produces vivid, saturated colors
Category Scores
Pros & Cons
LG C4 65"
Pros
- Perfect black levels from self-emissive OLED pixels — best-in-class contrast
- All four HDMI 2.1 ports at full bandwidth with VRR, ALLM, and G-Sync Compatible
- 1ms input lag makes it one of the best gaming TVs at any price
- Dolby Vision IQ and Dolby Atmos support for premium cinematic experience
- webOS 24 is clean, fast, and nearly ad-free compared to Tizen
Cons
- OLED burn-in risk with prolonged static content (e.g. news tickers, HUDs)
- Peak brightness trails Mini-LED rivals in very bright HDR highlights
- Slightly lower brightness than the G4, limiting HDR pop in sunlit rooms
- USB-A ports are only USB 2.0 speed
TCL 5-Series S555 65" (QLED)
Pros
- 65-inch 4K with 120Hz and VRR at $599 is outstanding value
- Both Dolby Vision and HDR10+ support — rare at this price
- QLED color enhancement produces vivid, saturated colors
- Wi-Fi 6 and four HDMI ports (one HDMI 2.1) handle modern setups
- Google TV platform with Chromecast built-in
Cons
- Only 1 HDMI 2.1 port — the other 3 are HDMI 2.0
- 800 nits is decent but not as impressive as the 6-Series
- No Dolby Atmos — audio is basic
- Edge-lit local dimming with limited zones shows blooming
Full Specifications
| Spec | LG C4 65" | TCL 5-Series S555 65" (QLED) |
|---|---|---|
| Body | ||
| VESA mount | 300 x 200mm | 300 x 300mm |
| Weight | 52.9 lbs | 42.3 lbs |
| Dimensions (w/ stand) | 57.0 x 36.9 x 10.1 inches | 57.2 x 35.6 x 12.3 inches |
| Dimensions | — | 57.2 x 33.0 x 3.2 inches |
| Audio | ||
| Output (watts) | 60 | 24 |
| Speakers | 2.2ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 1 | 8 |
| Display | ||
| HDR | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 65" | 65" |
| Type | OLED evo | QLED (VA LCD) |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 120Hz | 120Hz |
| Brightness (nits) | 1300 | 800 |
| Smart TV | ||
| Os | webOS 24 | Google TV |
| Voice assistant | ThinQ AI, Alexa, Google Assistant | Google Assistant |
| Processor | ||
| Chipset | α9 Gen 7 AI Processor 4K | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 6 |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 3 | 1 |
| HDMI ports | 4 | 4 |
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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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