Roku Smart TV – 32-Inch Select Series, 720p HD TV vs VIZIO 40-inch D-Series Full HD 1080p Smart TV with
Updated August 2026 — VIZIO 40-inch D-Series Full HD 1080p Smart TV with leads on gaming support and picture quality.
The VIZIO 40-inch D-Series offers superior display quality and gaming features, making it the better choice for those who prioritize performance. However, the Roku Smart TV is a more budget-friendly option.
Why Roku Smart TV – 32-Inch Select Series, 720p HD TV is better
Price
Roku is $119.99, significantly cheaper than VIZIO at $188.98.
Voice Control
Roku supports multiple voice assistants including Siri, Alexa, and Google Assistant.
Sound Quality
Roku is designed for clear speech and includes Bluetooth Headphone Mode.
Why VIZIO 40-inch D-Series Full HD 1080p Smart TV with is better
Display Quality
VIZIO offers Full HD 1080p compared to Roku's 720p.
Gaming Performance
VIZIO features a V-Gaming Engine with AMD FreeSync.
Smart Features
VIZIO includes SmartCast with built-in Apple AirPlay and Chromecast.
Overall score
Specifications
| Spec | Roku Smart TV – 32-Inch Select Series, 720p HD TV | VIZIO 40-inch D-Series Full HD 1080p Smart TV with |
|---|---|---|
| Smart Features | 500+ channels | SmartCast with AirPlay |
| Voice Control | Yes | Yes |
| Gaming Mode | No | Yes |
| Picture Processor | Basic | IQ Processor |
| Audio Features | Clear speech | Standard |
Dimension comparison
Pricing Comparison
The Roku Smart TV is priced at $119.99, while the VIZIO 40-inch D-Series is listed at $188.98. This makes the Roku about 37% cheaper than the VIZIO. For budget-conscious consumers, this significant price difference may be a crucial factor. The Roku offers great value for those who prioritize affordability without sacrificing essential features. Conversely, the VIZIO, with its higher price tag, positions itself as a more premium option, potentially justifying the cost with its advanced specifications and features.
Display Quality
When it comes to display quality, the VIZIO 40-inch D-Series outshines the Roku Smart TV, providing a Full HD 1080p resolution compared to the Roku's 720p HD. The VIZIO’s higher resolution results in a crisper, clearer picture, making it ideal for watching movies and gaming. The Roku's display, while adequate for smaller rooms, may not deliver the same level of detail on larger screens. The VIZIO's Full Array LED Backlight also enhances light uniformity and picture performance, further enhancing the viewing experience.
Smart Features
Both TVs come equipped with smart features, but they differ in functionality. The Roku Smart TV offers an intuitive interface with access to over 500 channels, including free content. Its seamless streaming capabilities make it easy to find favorite shows and movies. However, the VIZIO D-Series boasts SmartCast, which provides instant access to popular streaming apps and includes features like Apple AirPlay and Chromecast built-in. The VIZIO also includes a V-Gaming Engine for enhanced gaming performance, which could be a deciding factor for gamers.
Voice Control Compatibility
Voice control is a significant feature for both televisions, but the Roku Smart TV excels in this area. It supports voice commands through Roku Voice, Siri, Alexa, and Google Assistant, allowing for versatile integration into smart home setups. This broad compatibility makes it easier for users to control their entertainment hands-free. The VIZIO also offers Alexa compatibility, but it lacks the same level of voice control integration as the Roku, which may be a drawback for those looking for a fully voice-activated experience.
Sound Quality
Sound quality is another key area where the Roku Smart TV holds its ground. It is designed for clear speech and louder sound, ensuring that viewers can catch every word without straining. The VIZIO D-Series, while capable, does not specifically highlight its audio performance to the same extent. The Roku also includes a Bluetooth Headphone Mode, enabling private listening through wireless headphones, which is a useful feature for late-night viewing or avoiding disturbances in a shared space.
Gaming Performance
The VIZIO 40-inch D-Series is specifically tailored for gaming enthusiasts, featuring a V-Gaming Engine that optimizes picture settings for a more responsive gaming experience. It includes Auto Game Mode and Variable Refresh Rate with AMD FreeSync, which reduces input lag and enhances gameplay. On the other hand, the Roku Smart TV does not highlight any specialized gaming features, making it less suitable for serious gamers who require advanced functionality for their consoles.
Size and Versatility
The Roku Smart TV is a compact 32-inch option, making it a great fit for smaller rooms like bedrooms and kitchens. Its manageable size allows for easy placement in various spaces without overwhelming the environment. The VIZIO 40-inch D-Series, while slightly larger, provides a more immersive viewing experience. This size difference means the VIZIO can double as a centerpiece in a living room setup, catering to those who want a larger screen for family movie nights or gaming sessions.
Which should you buy?
Choosing between the Roku Smart TV and the VIZIO 40-inch D-Series ultimately depends on your specific needs and preferences. If you're looking for a budget-friendly option with solid smart features and easy voice control, the Roku Smart TV is a compelling choice at $119.99. However, if you prioritize display quality, gaming capabilities, and larger screen size, the VIZIO D-Series, priced at $188.98, offers those advantages despite its higher cost. Consider what features matter most to you to make the best decision.

