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BenQ TH575i 1080p Home Projector vs Smart Projector 4K with Built in Apps YouTube/PrimeVideo & Dolby

Updated August 2026The BenQ TH575i excels in brightness and gaming performance, while the Smart Projector 4K offers built-in streaming and portability at a lower price.

The BenQ TH575i excels in brightness and gaming performance, while the Smart Projector 4K offers built-in streaming and portability at a lower price.

Why BenQ TH575i 1080p Home Projector is better

Brightness

BenQ TH575i has 3,800 lumens compared to Smart Projector 4K's 2,000 ANSI lumens.

Gaming Performance

BenQ TH575i features a low input lag of 16.7ms.

Setup Ease

BenQ TH575i has Auto Vertical Keystone correction for easier installation.

Why Smart Projector 4K with Built in Apps YouTube/PrimeVideo & Dolby is better

Price

Smart Projector 4K is priced at £239.99, significantly lower than BenQ.

Built-in Apps

Smart Projector 4K has built-in streaming apps, eliminating the need for additional devices.

Audio Quality

Smart Projector 4K includes Dolby-certified speakers for better sound.

Overall score

BenQ TH575i 1080p Home Projector
85
Smart Projector 4K with Built in Apps YouTube/PrimeVideo & Dolby
70

Specifications

SpecBenQ TH575i 1080p Home ProjectorSmart Projector 4K with Built in Apps YouTube/PrimeVideo & Dolby
BrandBenQiSinbox
StreamingGoogle TV dongleBuilt-in apps
AudioExternal requiredDolby Audio
Setup1.1x zoom360° rotatable stand
UsageIndoorIndoor/Outdoor

Dimension comparison

BenQ TH575i 1080p Home ProjectorSmart Projector 4K with Built in Apps YouTube/PrimeVideo & Dolby

Overview of the BenQ TH575i 1080p Home Projector and Smart Projector 4K

The BenQ TH575i 1080p Home Projector is designed for vibrant indoor viewing, while the Smart Projector 4K offers built-in apps for convenient streaming. Priced at £479.00, the BenQ projector features 3,800 lumens brightness for clear visuals, making it suitable for bright environments. In contrast, the Smart Projector 4K, at £239.99, provides 2,000 ANSI lumens brightness with a native resolution of 1080p and 4K HDR10+ support, targeting versatility for indoor and outdoor use.

Brightness and Visual Performance

Brightness is a significant factor in projector performance. The BenQ TH575i boasts an impressive 3,800 lumens, ensuring excellent clarity even in well-lit rooms. This brightness allows users to enjoy a 120-inch big-screen experience without compromising on image quality.

On the other hand, the Smart Projector 4K offers 2,000 ANSI lumens, which is adequate for casual viewing but may struggle in brighter environments. It is designed for both daytime viewing and outdoor movie nights, supporting image sizes from 39 inches to 200 inches. While the BenQ excels in raw brightness, the Smart Projector 4K’s 4K HDR10+ support provides superior contrast and detail, particularly in darker settings.

Streaming and Connectivity

When it comes to streaming capabilities, the BenQ TH575i includes a licensed Google TV dongle, allowing easy access to popular platforms like Netflix, YouTube, and Disney+. This plug-and-play setup simplifies streaming without the need for additional devices, enhancing user convenience.

Conversely, the Smart Projector 4K features built-in streaming apps, eliminating the need for an external TV stick. It offers direct access to YouTube, Prime Video, and Disney+, making it a more integrated solution for users who want to avoid cable clutter. Both projectors provide robust streaming options, but the Smart Projector 4K stands out with its all-in-one functionality.

Gaming Experience

For gaming enthusiasts, the BenQ TH575i offers ultra-smooth performance with a low input lag of just 16.7 milliseconds. This rapid response time ensures minimal delay, making it ideal for fast-paced gaming sessions.

The Smart Projector 4K, while not explicitly detailing input lag, is designed for gaming with its native 1080p resolution and advanced image enhancement technology. Both projectors are suitable for gaming, but the BenQ’s specified low input lag can provide a distinct advantage for competitive gamers.

Installation and Setup

Ease of installation is crucial for any projector. The BenQ TH575i features a 1.1x optical zoom and Auto Vertical Keystone correction, simplifying setup and allowing for flexible placement. Users can achieve a squared image quickly, which is particularly beneficial for those who may not have extensive technical knowledge.

In contrast, the Smart Projector 4K includes a 360° rotatable stand, facilitating effortless projections on walls or ceilings. This feature enhances its versatility, allowing users to adapt the projector for various settings, whether at home or outdoors. Both projectors offer unique installation advantages, but the BenQ may be easier for users preferring a straightforward setup.

Audio Quality

Audio quality can significantly enhance the viewing experience. The BenQ TH575i does not detail its audio capabilities, which may require users to invest in external sound systems for an optimal experience.

In contrast, the Smart Projector 4K includes Dolby-certified HiFi stereo speakers and DTS decoding technology. This built-in audio solution provides an immersive surround sound experience, making it suitable for those who prefer an all-in-one device without additional audio equipment. For users prioritising audio, the Smart Projector 4K clearly offers a more comprehensive solution.

Portability and Versatility

Portability is essential for users who wish to move their projectors frequently. The Smart Projector 4K is designed with portability in mind, making it ideal for outdoor movie nights, camping, or travelling in an RV. Its lightweight design and built-in apps enhance its versatility for various entertainment scenarios.

The BenQ TH575i, while primarily aimed at home use, requires a bit more setup due to its higher brightness and additional equipment for streaming. Thus, for users wanting a projector that can easily transition between indoor and outdoor settings, the Smart Projector 4K may be the better choice.

Which should you buy?

Choosing between the BenQ TH575i 1080p Home Projector and the Smart Projector 4K ultimately depends on your specific needs. If you prioritise brightness and gaming performance, the BenQ’s 3,800 lumens and low input lag make it an excellent option for home entertainment. However, if you seek versatility, built-in streaming capabilities, and enhanced audio quality for various environments, the Smart Projector 4K offers a compelling alternative at a lower price point of £239.99. Consider your viewing habits and requirements to determine which projector best fits your lifestyle.

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BenQ TH575i 1080p Home Projector vs Smart Projector 4K with Built in Apps YouTube/PrimeVideo & Dolby | versusfinder