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BENQ TH685i | 1080p HDR 3500lm Projector with Android TV

High Brightness & HDR Support
Delivers 3,500 ANSI lumens brightness and supports HDR10 and HLG, ensuring vibrant and detailed images even in well-lit environments.
Low Input Lag for Gaming
Achieves 8.3 ms input lag at 1080p/120Hz, providing smooth and responsive gameplay, ideal for console and PC gaming.
Android TV Integration
Comes with the QS01 Android TV dongle, granting access to over 5,000 apps, including YouTube and Prime Video, for seamless streaming.
Flexible Setup Options
Features 1.3x zoom, vertical lens shift, and auto vertical keystone correction, making installation adaptable to various room layouts.

Original price was: $979,29.Current price is: $843,24. (Includes 5% VAT)

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Features & Compatibility

The BenQ TH685i is a bright and responsive 1080p Full HD DLP projector tailored for gamers and home entertainment enthusiasts, offering 3,500 ANSI lumens brightness and projector‑optimized HDR10/HLG support for vibrant visuals even in well-lit rooms. It delivers ultralow input lag—just 16.7 ms at 1080p/60 Hz and an impressive 8.3 ms at 1080p/120 Hz—making it ideal for fast-paced gaming experiences . With 95% Rec. 709 (≈30-bit) color accuracy, a 10,000:1 FOFO contrast ratio, and intelligent features like LumiExpert auto-brightness adjustment and built-in auto vertical keystone/lens shift, it ensures visually engaging content whether you’re watching movies or playing games.

The integrated 5 W chambered speaker, enhanced by proprietary EQ for richer sound, and the inclusion of a Google‑certified Android TV QS01 dongle offer seamless access to streaming apps (over 5,000), Chromecast/AirPlay support, and unified remote control—though Netflix requires casting due to DRM restrictions .

Compact (312×110×225 mm, 2.79 kg) and featuring long-lasting lamp modes (4,000–15,000 h) with quiet operation (35 dB normal, 29 dB eco), the BenQ TH685i combines flexible setup, high performance, and smart features into one sleek package.

Bright Full HD with HDR & 4K Input
- Delivers 3,500 ANSI lumens of brightness with native 1080p resolution, plus projector-optimized HDR10 and HLG support that downscale 4K content for vibrant, detailed visuals—even in well-lit rooms
Ultra-Low Input Lag for Gaming
- Achieves a lightning-fast 8.3 ms input lag at 1080p/120 Hz (16.7 ms at 60 Hz), ideal for responsive console and PC gameplay—with dedicated Game Mode and Fast Mode to eliminate processing delays
Flexible Optics & Smart Setup Tools
- Features a 1.3× manual zoom lens (throw ratio 1.13–1.46), 105% vertical offset, digital vertical lens shift, and auto vertical keystone ±40°, ideal for easy setup in a variety of room layouts
LumiExpert & Quality Sound
- LumiExpert ambient light sensor dynamically adjusts gamma for optimal contrast across lighting conditions. Additionally, a built-in 5 W chambered speaker with custom EQ and Game Sound Mode enhances audio for gaming and movies
Google-Certified Android TV + Casting
- Ships with a QS01 Android TV dongle, granting access to 5,000+ apps (YouTube, Prime, etc.), plus Chromecast and AirPlay support. The remote controls both the projector and dongle—though Netflix is only available via casting

🔧 Key Specifications

Brightness: 3,500 ANSI lumens
Resolution: Full HD (1920×1080)
Contrast Ratio: 10,000:1
Color Accuracy: 95% Rec.709
Input Lag: 8.3 ms at 1080p/120Hz
HDR Support: HDR10 and HLG
Light Source Life: Normal: 4,000 hrs; Eco: 10,000 hrs; SmartEco: 8,000 hrs; LampSave: 15,000 hrs
Throw Ratio: 1.13–1.46
Zoom Ratio: 1.3×
Lens Shift: 105% vertical offset
Keystone Correction: Auto vertical ±30°
Speaker: 5W chambered speaker
Connectivity: 2× HDMI 2.0b, USB-A, 3.5mm audio, RS-232
Smart Features: Google-certified Android TV QS01 dongle, Chromecast, AirPlay
Dimensions: 312×110×225 mm
Weight: 2.79 kg shi.com+3