TOPTRO X9 4K Smart Home Projector vs BenQ TH575i 1080p Home Projector
Updated August 2026 — The TOPTRO X9 offers superior resolution and integrated audio at a lower price, while the BenQ TH575i excels in brightness and gaming performance. Choose based on your priorities.
The TOPTRO X9 offers superior resolution and integrated audio at a lower price, while the BenQ TH575i excels in brightness and gaming performance. Choose based on your priorities.
Why TOPTRO X9 4K Smart Home Projector is better
Price
£269.99 vs £479.00
Resolution
4K support vs 1080p
Audio Quality
36W speakers with Dolby support
Why BenQ TH575i 1080p Home Projector is better
Brightness
3,800 lumens vs unspecified ANSI brightness
Gaming Performance
16.7ms low input lag vs unspecified input lag
Setup Ease
1.1x optical zoom and auto keystone correction vs unspecified features
Overall score
Specifications
| Spec | TOPTRO X9 4K Smart Home Projector | BenQ TH575i 1080p Home Projector |
|---|---|---|
| Brand | TOPTRO | BenQ |
| Current Price | £269.99 | £479.00 |
| Max Resolution | 4K | 1080p |
| Brightness | 1500 ANSI | 3800 lumens |
| Audio Output | 36W | Not specified |
| Input Lag | Not specified | 16.7ms |
Dimension comparison
Price Comparison
The TOPTRO X9 4K Smart Home Projector is priced at £269.99, significantly lower than the BenQ TH575i 1080p Home Projector, which retails for £479.00. This makes the X9 a more budget-friendly option for those seeking a home projector without compromising on advanced features. The difference of £209.01 might appeal to families or individuals looking for a good value in home entertainment. While the X9 offers 4K support, the BenQ’s higher price reflects its additional brightness and features, potentially justifying the cost for those prioritising premium performance.
Resolution and Picture Quality
When it comes to resolution, the TOPTRO X9 boasts 4K support, while the BenQ TH575i provides a maximum resolution of 1080p. The X9’s advanced optical technology and high-resolution DMD chip deliver a clearer and more detailed image, making it suitable for viewers who desire ultra-HD picture quality. In contrast, the BenQ, while offering a respectable 1080p resolution, may not satisfy those looking for the latest in visual clarity. Therefore, if resolution is a primary concern, the TOPTRO X9 stands out as the better option.
Brightness and Performance
The BenQ TH575i surpasses the TOPTRO X9 in brightness, featuring an impressive 3,800 lumens compared to the X9's unspecified ANSI brightness but noted to be 2 times brighter than typical 800 ANSI projectors. This higher brightness level enables the BenQ to perform exceptionally well in well-lit environments, allowing for a clear 120-inch image even with ambient light. The TOPTRO X9, while bright, might struggle in similar conditions. Those seeking a projector for use in diverse lighting situations may find the BenQ’s performance more reliable.
Audio Quality
The audio performance of the TOPTRO X9 is enhanced by its built-in 36W speakers and support for Dolby audio, which provide a cinema-level audio-visual experience. This integration of a high-fidelity audio system reduces the need for additional speakers, making it a convenient choice for users. On the other hand, the audio specifications of the BenQ TH575i are not highlighted, suggesting it may not offer the same level of integrated sound quality. For users prioritising audio experience alongside visual performance, the TOPTRO X9 may be the preferable choice.
Smart Features and Connectivity
Both projectors come with built-in smart features, but the TOPTRO X9 particularly shines with its compatibility with popular streaming applications such as Netflix and Prime Video, allowing for easy access without additional devices. The projector also supports regular updates for new content and optimisations. In contrast, the BenQ TH575i includes a licensed Google TV dongle for streaming, ensuring access to platforms like Netflix and Disney+. While both offer smart capabilities, the X9’s built-in functionality may appeal more to users looking for a simpler, integrated solution.
Gaming Performance
For gamers, the BenQ TH575i provides a notable advantage with its ultra-smooth 16.7ms low input lag, ensuring responsive gameplay free from delays. This is particularly beneficial for fast-paced gaming sessions. While the TOPTRO X9 does not specify input lag, its features suggest a focus on cinema-quality viewing rather than gaming performance. Therefore, if gaming is a priority, the BenQ TH575i may be the better choice due to its tailored specifications.
Installation and Setup
The BenQ TH575i offers flexible setup options with its 1.1x optical zoom and auto vertical keystone correction, making installation straightforward and user-friendly. This allows for a quick and easy adjustment to achieve a perfectly squared image without complicated setups. The TOPTRO X9 does not detail its installation features, which may make the BenQ a more attractive option for users who prefer a hassle-free setup process. For those who value convenience in installation, the BenQ TH575i appears to be the more practical choice.
Which should you buy?
Choosing between the TOPTRO X9 4K Smart Home Projector and the BenQ TH575i 1080p Home Projector ultimately depends on your specific needs and budget. If you prioritise resolution, integrated audio, and a lower price, the TOPTRO X9 offers compelling features for home entertainment. However, if you need superior brightness for varied lighting conditions, low input lag for gaming, and easy installation, the BenQ TH575i may justify its higher price point. Each projector has its strengths, making the decision reliant on individual preferences and usage scenarios.
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