Roku Plus Series 55" vs Vizio V-Series 55"
The Verdict
Roku's Plus Series 55" commands a $100 premium over Vizio's V-Series, justifying it through superior hardware. Picture quality heavily favors Roku with 700 nits brightness versus Vizio's 400 nits—a significant advantage for HDR content visibility. Roku's QLED panel outperforms Vizio's standard LED across contrast and color accuracy. Gaming performance tilts toward Roku with 13ms input lag and ALLM support compared to Vizio's 20ms lag and no ALLM. Audio remains equivalent at 20W 2.0ch, though only Roku includes Dolby Atmos. Connectivity advantages go to Roku: Wi-Fi 6, Bluetooth 5.2, and four HDMI ports versus Vizio's Wi-Fi 5, Bluetooth 4.2, and three ports. Roku's OS also integrates voice assistants more seamlessly. Vizio appeals primarily to budget-conscious buyers prioritizing basic 4K streaming without gaming needs. For most viewers, Roku's superior brightness, panel technology, and gaming features justify the price difference.
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 Vizio V-Series 55" if…
- →Very affordable at $299 for a 55-inch 4K TV with Dolby Vision support
- →AirPlay 2 and Chromecast built-in enable easy casting from phones and tablets
- →SmartCast is straightforward and quick to navigate for basic streaming needs
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
Vizio V-Series 55"
Pros
- Very affordable at $299 for a 55-inch 4K TV with Dolby Vision support
- AirPlay 2 and Chromecast built-in enable easy casting from phones and tablets
- SmartCast is straightforward and quick to navigate for basic streaming needs
- Lightweight at 30.6 lbs — easy to mount or move between rooms
Cons
- 60Hz panel is unsuitable for gaming or watching fast-motion sports content
- SmartCast app ecosystem is more limited than Google TV or Tizen
- Only three HDMI ports — none support HDMI 2.1 bandwidth
- Low brightness and basic LED backlighting delivers mediocre HDR impact
- No VRR or ALLM, and ~20ms input lag makes it a poor choice for gamers
Full Specifications
| Spec | Roku Plus Series 55" | Vizio V-Series 55" |
|---|---|---|
| Body | ||
| VESA mount | 200 x 200mm | 200 x 200mm |
| Weight | 26.5 lbs | 30.6 lbs |
| Dimensions (w/ stand) | 48.4 x 30.6 x 10.2 inches | 48.6 x 32.1 x 8.9 inches |
| Audio | ||
| Output (watts) | 20 | 20 |
| Speakers | 2.0ch | 2.0ch |
| Dolby Atmos | ||
| Gaming | ||
| VRR (Variable Refresh Rate) | ||
| ALLM | ||
| Input lag (ms) | 13 | 20 |
| Display | ||
| HDR | Dolby Vision, HDR10+, HLG | HDR10, HDR10+, HLG, Dolby Vision |
| Size | 55" | 55" |
| Type | QLED | LED |
| Resolution | 3840 x 2160 (4K UHD) | 3840 x 2160 (4K UHD) |
| Refresh rate | 60Hz | 60Hz |
| Brightness (nits) | 700 | 400 |
| Smart TV | ||
| Os | Roku OS | SmartCast |
| Voice assistant | Roku Voice, Alexa, Google Assistant, Apple AirPlay 2 | Apple AirPlay 2, Chromecast built-in, Alexa, Google Assistant |
| Processor | ||
| Chipset | Quad-core | Vizio IQ Active Processor |
| Connectivity | ||
| Wi-Fi | Wi-Fi 6 (802.11ax) | Wi-Fi 5 (802.11ac) |
| Ethernet | ||
| Bluetooth | 5.2 | 4.2 |
| USB ports | 1 | 1 |
| HDMI ports | 4 | 3 |
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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