Roku Plus Series 55" vs TCL 6-Series R655 55" (Mini-LED QLED)
The Verdict
Both TVs deliver solid 55-inch 4K experiences, but they target different buyers. The Roku Plus Series costs $399 and includes basic QLED with 700-nits brightness, Dolby Vision support, and Roku's user-friendly interface alongside Alexa and Google Assistant compatibility. It handles gaming with 13ms input lag and ALLM support, though it lacks VRR and maxes out at 60Hz refresh. The TCL 6-Series R655 commands $749 but justifies the premium with Mini-LED backlighting that reaches 1500 nits for superior contrast and HDR impact. Its 120Hz refresh rate, VRR support, and 7ms input lag make it substantially better for gaming. Audio output increases from 20 watts to 30 watts, and the thinner 3.0-inch bezel design feels more premium. Google TV offers deeper content integration than Roku OS. Choose the Roku if you prioritize affordability and casual viewing with smart home flexibility. Select the TCL if you game regularly, watch HDR content frequently, or want noticeably better picture quality and gaming responsiveness. The price difference reflects meaningful hardware improvements rather than incremental upgrades.
Who Should Buy
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)
Buy the TCL 6-Series R655 55" (Mini-LED QLED) if…
- →Best picture quality under $800 — Mini-LED at this price is remarkable
- →Supports both Dolby Vision AND HDR10+ — covers every HDR format
- →1500 nits peak brightness rivals TVs costing twice as much
Category Scores
Pros & Cons
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
TCL 6-Series R655 55" (Mini-LED QLED)
Pros
- Best picture quality under $800 — Mini-LED at this price is remarkable
- Supports both Dolby Vision AND HDR10+ — covers every HDR format
- 1500 nits peak brightness rivals TVs costing twice as much
- 4K@120Hz with VRR and ALLM — excellent for PS5 and Xbox Series X
- Google TV platform with wide app support and Chromecast built-in
Cons
- TCL software updates are slower and less frequent than Samsung/LG
- Build quality and remote feel budget-oriented
- Some blooming around bright objects on dark backgrounds
- Sound quality from 30W speakers is average — soundbar recommended
Full Specifications
| Spec | Roku Plus Series 55" | TCL 6-Series R655 55" (Mini-LED QLED) |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 300 x 300mm |
| Weight | 26.5 lbs | 37.3 lbs |
| Dimensions (w/ stand) | 48.4 x 30.6 x 10.2 inches | 48.2 x 30.4 x 11.3 inches |
| Dimensions | — | 48.2 x 27.8 x 3.0 inches |
| Audio | ||
| Output (watts) | 20 | 30 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 13 | 7 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HLG | Dolby Vision, HDR10+, HDR10, HLG |
| Size | 55" | 55" |
| Type | QLED | Mini-LED QLED (VA LCD) |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K) |
| Refresh rate | 60Hz | 120Hz |
| Brightness (nits) | 700 | 1500 |
| Smart TV | ||
| Os | Roku OS | Google TV |
| Voice assistant | Roku Voice, Alexa, Google Assistant, Apple AirPlay 2 | Google Assistant |
| Processor | ||
| Chipset | Quad-core | — |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 6 |
| Ethernet | ||
| Bluetooth | 5.2 | 5.0 |
| USB ports | 1 | 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.
Explore more in tvs, see all Roku products or all TCL products. View full details for the Roku Plus Series 55" or the TCL 6-Series R655 55" (Mini-LED QLED).