Hisense A6K 55" (UHD LED) vs LG B4 55"
The Verdict
Hisense's A6K delivers exceptional value at $329, featuring a Direct LED VA panel with HDR support and respectable 350-nit brightness for casual viewing. However, LG's B4 OLED at $1199 operates in an entirely different performance tier with 1100-nit peak brightness, perfect blacks, 120Hz refresh rate, and exceptional gaming features including VRR and sub-2ms input lag (1ms vs 14ms). Audio prowess also diverges sharply: LG provides 40W Dolby Atmos sound versus Hisense's modest 16W stereo. The A6K suits budget-conscious buyers prioritizing affordability over performance, while the B4 targets enthusiasts demanding superior picture quality, gaming responsiveness, and immersive sound. For movie enthusiasts and gamers, LG's OLED technology delivers dramatically superior contrast and color accuracy. Budget shoppers will appreciate the Hisense's 4K capabilities and smart features, but recognize significant compromises. The LG B4 is the superior TV overall, though its premium justifies the price through OLED excellence and gaming optimization. Choose Hisense for budget living rooms; select LG for serious entertainment.
Who Should Buy
Buy the Hisense A6K 55" (UHD LED) if…
- →55-inch 4K at $329 is one of the cheapest large-screen TVs available
- →Dolby Vision and HDR10+ support at a budget price is impressive
- →VA panel provides decent contrast for the price
Buy the LG B4 55" if…
- →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
Category Scores
Pros & Cons
Hisense A6K 55" (UHD LED)
Pros
- 55-inch 4K at $329 is one of the cheapest large-screen TVs available
- Dolby Vision and HDR10+ support at a budget price is impressive
- VA panel provides decent contrast for the price
- Lightweight at 25.4 lbs — easy to handle and wall-mount
- Alexa built-in for voice control without an external device
Cons
- 60Hz panel with no VRR — not suited for gaming
- 350 nits is very dim — HDR is essentially non-functional
- VIDAA OS has a limited app selection compared to Google TV
- 16W audio is weak and tinny — external speakers are mandatory
- No HDMI 2.1 or Dolby Atmos
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
Full Specifications
| Spec | Hisense A6K 55" (UHD LED) | LG B4 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 25.4 lbs | 41.9 lbs |
| Dimensions | 48.4 x 28.1 x 3.2 inches | — |
| Dimensions (w/ stand) | 48.4 x 30.0 x 8.7 inches | 48.4 x 32.1 x 10.5 inches |
| Audio | ||
| Output (watts) | 16 | 40 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 14 | 1 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HDR10, HLG | Dolby Vision IQ, HDR10, HLG, Filmmaker Mode |
| Size | 55" | 55" |
| Type | Direct LED (VA LCD) | OLED |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K UHD) |
| Refresh rate | 60Hz | 120Hz |
| Brightness (nits) | 350 | 1100 |
| Smart TV | ||
| Os | VIDAA U6 | webOS 24 |
| Voice assistant | Alexa | ThinQ AI, Alexa, Google Assistant |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.0 |
| USB ports | 2 | 3 |
| HDMI ports | 3 | 4 |
| Processor | ||
| Chipset | — | α8 Gen 7 AI Processor 4K |
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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