Hisense A6K 55" (UHD LED) vs Roku Plus Series 55"
The Verdict
Roku Plus Series 55" substantially outperforms the Hisense A6K despite the $70 premium. Display quality differences are striking: Roku's QLED panel delivers 700 nits brightness versus Hisense's 350 nits, producing dramatically superior contrast and vibrant colors. Gaming features favor Roku with ALLM support and 13ms input lag compared to Hisense's 14ms, plus quad-core processing enables smoother performance. Audio gets a meaningful boost too,20W with Dolby Atmos versus 16W stereo. Connectivity advantages include Wi-Fi 6, additional HDMI port, and superior voice assistant integration (Alexa, Google, Apple AirPlay 2 vs. Alexa-only). Hisense A6K remains budget-friendly for basic streaming, but Roku Plus Series delivers noticeably better picture quality, gaming responsiveness, and smart TV flexibility justifying the investment for quality-conscious buyers.
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 Roku Plus Series 55" if…
- →Roku OS is the simplest, cleanest smart TV platform available
- →Dolby Vision, HDR10+, AND Dolby Atmos decoding — unusual at $399
- →Works with every voice assistant: Alexa, Google, Siri (via AirPlay)
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
Roku Plus Series 55"
Pros
- Roku OS is the simplest, cleanest smart TV platform available
- Dolby Vision, HDR10+, AND Dolby Atmos decoding — unusual at $399
- Works with every voice assistant: Alexa, Google, Siri (via AirPlay)
- Wi-Fi 6 for reliable 4K streaming
- QLED color enhancement is visible versus basic LED panels
Cons
- 60Hz panel — no 120Hz or gaming features
- 700-nit brightness is okay but not impressive for HDR highlights
- Roku's ad-supported free channels are prominently pushed in the UI
- No VRR for next-gen console gaming
Full Specifications
| Spec | Hisense A6K 55" (UHD LED) | Roku Plus Series 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 25.4 lbs | 26.5 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 30.6 x 10.2 inches |
| Audio | ||
| Output (watts) | 16 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 14 | 13 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HDR10, HLG | Dolby Vision, HDR10+, HLG |
| Size | 55" | 55" |
| Type | Direct LED (VA LCD) | QLED |
| Resolution | 3840 x 2160 (4K) | 3840 x 2160 (4K UHD) |
| Refresh rate | 60Hz | 60Hz |
| Brightness (nits) | 350 | 700 |
| Smart TV | ||
| Os | VIDAA U6 | Roku OS |
| Voice assistant | Alexa | Roku Voice, Alexa, Google Assistant, Apple AirPlay 2 |
| Connectivity | ||
| Wi-Fi | Wi-Fi 5 | Wi-Fi 6 (802.11ax) |
| Ethernet | ||
| Bluetooth | 5.0 | 5.2 |
| USB ports | 2 | 1 |
| HDMI ports | 3 | 4 |
| Processor | ||
| Chipset | — | Quad-core |
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 Roku products. View full details for the Hisense A6K 55" (UHD LED) or the Roku Plus Series 55".