Hisense U7K 55" (Mini-LED ULED) vs TCL S4 55"
The Verdict
Hisense U7K delivers premium performance at a mid-range price, featuring mini-LED backlighting with 1500 nits peak brightness, 144Hz refresh rate, and a full 30W speaker setup with Dolby Atmos support. Gaming capabilities shine with 7ms input lag, VRR, and ALLM enabled. Conversely, TCL S4 serves budget-conscious buyers with solid 4K fundamentals,Dolby Vision support, Google TV, and adequate HDR10 performance,but hobbles gaming with 30ms input lag, lacks variable refresh rate support, and manages only 400 nits brightness. Audio quality diverges significantly; TCL's 15W setup pales against Hisense's capable system. For mixed usage, U7K justifies its $370 premium through superior contrast, gaming responsiveness, and brightness for bright rooms. S4 makes sense only if budget dominance matters more than gaming or picture quality. Hisense U7K represents substantially better value for most households.
Who Should Buy
Buy the Hisense U7K 55" (Mini-LED ULED) if…
- →Mini-LED at $649 with 1500 nits brightness is incredible value
- →144Hz with VRR makes it one of the cheapest premium gaming TVs
- →Full HDR format support — Dolby Vision, HDR10+, and HLG
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
Hisense U7K 55" (Mini-LED ULED)
Pros
- Mini-LED at $649 with 1500 nits brightness is incredible value
- 144Hz with VRR makes it one of the cheapest premium gaming TVs
- Full HDR format support — Dolby Vision, HDR10+, and HLG
- Google TV with Chromecast built-in for easy streaming
- Dolby Atmos support for improved audio immersion
Cons
- Fewer dimming zones than U8K — more blooming visible
- 30W speakers are adequate but not impressive
- Hisense smart TV experience has occasional software bugs
- Build quality and design are functional but not premium
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 | Hisense U7K 55" (Mini-LED ULED) | TCL S4 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 31.7 lbs | 28.7 lbs |
| Dimensions | 48.4 x 28.1 x 2.8 inches | — |
| Dimensions (w/ stand) | 48.4 x 30.2 x 9.3 inches | 48.5 x 32.4 x 9.2 inches |
| Audio | ||
| Output (watts) | 30 | 15 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 7 | 30 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HDR10, HLG | HDR10, Dolby Vision, HLG |
| Size | 55" | 55" |
| Type | Mini-LED QLED (VA LCD) | LED |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K UHD) |
| Refresh rate | 144Hz | 60Hz |
| Brightness (nits) | 1500 | 400 |
| Smart TV | ||
| Os | Google TV | Google TV |
| Voice assistant | Google Assistant, Alexa | Google Assistant |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.1 | 5.0 |
| USB ports | 2 | 1 |
| HDMI ports | 4 | 3 |
| Processor | ||
| Chipset | — | AiPQ Lite Processor |
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 Hisense products or all TCL products. View full details for the Hisense U7K 55" (Mini-LED ULED) or the TCL S4 55".