BenQ TH575i 3800 Lumen Full HD Projector with Google TV for Home Cinema and Gaming

BenQ TH575i – Full HD home cinema and gaming with Google TV and 16.67 ms input lag

The BenQ TH575i combines two worlds: home cinema in the living room in the evening, gaming on PS5 or Xbox Series X the next day. A Google TV dongle is included – Netflix, YouTube and Disney+ launch directly on the projector. Console gamers will appreciate 16.67 ms input lag at 120 Hz in game mode, film fans the 15,000:1 contrast and 88 % Rec.709 colour gamut. Table or ceiling mounting, automatic vertical keystone correction – setup is ready in minutes.

Strengths at a glance

• Google TV dongle included – Netflix, YouTube and Google Play ready to go, smart TV experience fully configured
• 16.67 ms input lag @ 1080p/120 Hz – game mode for action, FPS and racing with direct response
• 3,800 lumens – a bright, high-contrast image even in a living room with curtains
• Auto vertical keystone ±40° – automatic correction of vertical keystone distortion for a rectangular image straight after setup
• User-replaceable lamp – replaced at home in a few minutes; up to 10,000 operating hours in Eco mode
• 3D-capable (DLP Link) – use existing 3D Blu-rays and 3D streaming with compatible glasses
• Compact and light – 2.5 kg fits on any table and is easy to ceiling-mount

Applications: what the BenQ TH575i is suited for

Evening home cinema
In a darkened living room, the BenQ TH575i shows what 3,800 lumens and 15,000:1 contrast mean: a rich, nuanced image with clear detail in dark scenes. Full HD content from Netflix or Blu-ray looks finely sharp on a 100" image (approx. 2.21 m wide). The 88 % Rec.709 colour gamut ensures skin tones look natural and colour gradients blend smoothly.

Gaming sessions with PS5 and Xbox
16.67 ms input lag in dedicated game mode is excellent for action, FPS and racing games on console. 120 Hz ensures smooth motion. Practical tip for gaming sessions: if possible, position the projector physically square to the screen. Keystone correction – whether automatic or manual – is always digital and costs some sharpness, which ambitious gamers would rather not give away.

Film and series nights with the family
Google TV comes with Netflix and YouTube pre-installed; thousands more apps can be installed directly on the projector via the Google Play Store. The supplied Google TV dongle plugs into the HDMI input – a TV experience on a big image, in a ready-configured package of projector and smart TV. The 10 W speaker provides basic sound for spontaneous film nights; for home cinema quality, connect a soundbar or AV receiver via the 3.5 mm jack output.

Picture quality: Full HD, contrast and colour gamut

The BenQ TH575i projects in native Full HD (1,920 × 1,080 pixels, 16:9) using DLP technology with a 0.65" DMD chip. On a 100" image, the resolution delivers sharp text, precise contours and a uniform image structure.

The dynamic contrast of 15,000:1 gives dark scenes depth as long as the room is darkened. With ambient light – for example in a living room with the curtains drawn – 3,800 lumens ensure a clearly visible image. An ALR screen (ambient light rejecting) then boosts contrast significantly further.

The 88 % Rec.709 colour gamut is the broadcast and streaming standard for HD content. Netflix, YouTube and Blu-ray discs are mastered to this space – so the TH575i reproduces them faithfully. HDR formats are not supported; if you watch HDR-mastered content, you get an SDR-converted image.

The TH575i is also 3D-capable: DLP Link glasses synchronise themselves via the projected light, so no separate emitter is needed. 3D Blu-rays and compatible streaming content can be enjoyed on a large surface.

Gaming performance: 16.67 ms at 120 Hz

DLP technology brings a technical advantage for gaming: the micromirrors switch in microseconds, ensuring ghosting-free motion. The BenQ TH575i adds 16.67 ms input lag at 1080p/120 Hz. That is in the "very good" range – suitable for action, FPS and racing. eSports pros opt for models under 10 ms; for console gaming on the sofa, 16.67 ms is a comfortable value.

Dedicated game mode optimises picture and signal processing for low lag. A fixed setup with a consistent seating distance keeps image sharpness stable – the projector is ready to go for every session.

The refresh rate is 120 Hz at 1080p. 4K resolution and VRR/ALLM are not supported.

Smart features and streaming with Google TV

The included Google TV dongle makes the BenQ TH575i a fully fledged smart projector. Google TV is Android-based and brings a personalised home screen, a cross-app watchlist and access to Google Play.

Netflix, YouTube, Amazon Prime Video, Disney+ and other streaming services are available via the Google Play Store – once signed in, all accounts are bundled on the Google TV home screen.

Chromecast is built in: your smartphone or tablet sends content to the projector via Google Cast. The projector then streams from the internet itself – saving your smartphone's battery. Wi-Fi is built in, so the setup needs no additional adapter.

The Google TV dongle is powered internally via USB-C under a housing cover. Only the HDMI and audio cables remain visible on the housing – a tidy setup.

Connections at a glance

Important for home cinema planning: both HDMI ports are version 1.4 – enough for 1080p and 4K signals via downscaling, but no ARC/eARC for uncompressed audio back to the soundbar. Audio runs via the 3.5 mm jack output or directly from the Google TV dongle via HDMI. No HDMI cable is included – plan for a high-quality HDMI cable.

Installation and mounting

The BenQ TH575i is designed for table and ceiling mounting. The throw ratio of 1.49–1.64:1 and 1.1× manual zoom give the following guide values for a 100" image (approx. 2.21 m wide):

The distances are based on manufacturer data and are intended for preliminary planning. For the exact image size, it is worth testing on site before fitting the ceiling mount.

The fixed offset of 108 % positions the image slightly above the lens centre – with table placement, the projection automatically appears above the projector. You adjust the image position via the physical placement and the automatic vertical keystone correction (±40°). Models with lens shift offer maximum placement flexibility.

For ceiling mounting, you need a suitable ceiling mount; if you want to conceal the projector invisibly, our ceiling lifts offer a premium alternative. Mounting screws M4/25 mm, minimum side ventilation clearance 500 mm according to the manual.

Operation: lamp, noise and power consumption

In Eco mode, noise drops to 29 dB(A) – similar to a quietly ticking alarm clock and barely noticeable even in quiet film scenes. In normal mode, 34 dB(A) is audible; with the projector on a table or ceiling two to three metres from the seating position, the fan noise blends into the room's background sound.

The lamp is user-replaceable – done at home in a few minutes. In Eco mode it lasts up to 10,000 hours: at three hours of use a day, that equals around 9 years, and at six hours a day about 4.5 years. A replacement lamp is available as an optional accessory.

In the box

• BenQ TH575i projector
• Google TV dongle
• Remote control
• Power cable
• Quick start guide
• Warranty card

Not included: HDMI cable, screen, ceiling mount.

Have you thought of everything?

• Screen – a white gain 1.0 screen is the minimum recommendation; if you want a rich image even with ambient light, choose an ALR screen that absorbs ambient light. Our screen category offers suitable formats from 80" upwards.
• Ceiling mount or ceiling lift – for permanent ceiling installation as an alternative to table placement. Suitable ceiling mounts and ceiling lifts in our range.
• HDMI cable – no cable included. A high-quality HDMI cable from our HDMI cable range ensures a stable signal, especially with longer cable runs to the ceiling.
• Sound setup – the 10 W mono speaker provides basic sound; for a true home cinema experience, a soundbar or AV receiver is worthwhile. Connect via the 3.5 mm jack directly on the projector.

BenQ TH575i – ideal for

• Home cinema beginners looking for a bright complete package with Google TV in a single unit
• Console gamers who want to play on a big image with low input lag
• Families who want film and series nights on a 100" image ready in no time
• Living-room setups with table or ceiling mounting in a fixed line of sight to the screen

For maintenance-free long-term operation with a longer light source life, take a look at our laser projector category – laser light sources last 20,000 to 30,000 hours without lamp changes.

Conclusion: a fully equipped entry into home cinema and gaming

The BenQ TH575i combines Google TV streaming, 16.67 ms input lag and 3,800 lumens of brightness in a housing weighing just 2.5 kg. A complete package for streaming, gaming and home cinema in one unit. The lamp is user-replaceable, and in Eco mode the projector whispers along at 29 dB(A) and lasts up to 10,000 hours.

Advice on the optimal combination of projector, screen, mount and cable – our team is happy to help: Get expert advice →