TCL Q7 55" vs TCL S4 55"
The Verdict
Both TCL models deliver 4K resolution and Google TV smart features, but they cater to different priorities. The Q7 commands a $220 premium justified by genuine performance upgrades: its QLED panel reaches 1000 nits brightness versus the S4's 400 nits, making a substantial difference in contrast and HDR impact. The Q7 supports 120Hz native refresh rate with VRR and ALLM for gaming, posting just 8ms input lag compared to the S4's 30ms lag and 60Hz ceiling. Audio power also favors the Q7 with 20W output and Dolby Atmos versus 15W without Atmos on the S4. Both use the AiPQ processor line and offer dual HDMI/USB ports, but the Q7 includes Wi-Fi 6 for faster streaming. The S4 remains a solid entry-level 4K TV for casual viewing and movies, with adequate brightness for most rooms and reliable upscaling via its AiPQ Lite chip. However, if you game frequently, watch HDR content regularly, or want superior brightness and motion handling, the Q7's advantages justify the 79% higher price. The S4 works best for budget-conscious buyers prioritizing screen size over performance specs.
Who Should Buy
Buy the TCL Q7 55" if…
- →Both Dolby Vision AND HDR10+ support — rare at any price
- →120Hz with VRR for smooth gaming on PS5 and Xbox Series X
- →1000-nit brightness delivers genuine HDR punch for under $500
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
TCL Q7 55"
Pros
- Both Dolby Vision AND HDR10+ support — rare at any price
- 120Hz with VRR for smooth gaming on PS5 and Xbox Series X
- 1000-nit brightness delivers genuine HDR punch for under $500
- Wi-Fi 6 connectivity for faster streaming
- Google TV with built-in Chromecast and Dolby Atmos decoding
Cons
- Only three HDMI ports — one fewer than many competitors
- QLED — no local dimming means contrast trails Mini-LED options
- Build quality feels cheaper than Sony or Samsung at this price
- Google TV home screen can be cluttered with recommendations
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 | TCL Q7 55" | TCL S4 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 29.5 lbs | 28.7 lbs |
| Dimensions (w/ stand) | 48.4 x 30.4 x 11.5 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) | 8 | 30 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HLG | HDR10, Dolby Vision, HLG |
| Size | 55" | 55" |
| Type | QLED | LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
| Refresh rate | 120Hz (native) | 60Hz |
| Brightness (nits) | 1000 | 400 |
| Smart TV | ||
| Os | Google TV | Google TV |
| Voice assistant | Google Assistant, Alexa | Google Assistant |
| Processor | ||
| Chipset | AiPQ Processor | AiPQ Lite Processor |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 1 | 1 |
| HDMI ports | 3 | 3 |
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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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