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Current price- - £942.32
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  • Description
  • Specifications
  • Downloads
  • BenQ TH685i 1080p HDR Projector - 3500 Lumens with Android TV


    Full HD Cinema Enjoyment for Bright Rooms
    Treat your eyes to the brilliance of Full HD 1080p visuals, with amazing detail clarity and sharpness for exceptional home cinematic experiences in well-lit environments.

    Realistic Projector-Optimized HDR with 4K Support
    BenQ exclusive projector-optimized HDR with HDR10 and HLG support offers greater brightness, contrast range, and image optimization, downscaling 4K HDR Blu-rays and streaming content for brilliant cinema enjoyment in bright settings.

    Overpowered Gaming Visuals

    Low Input Lag Performance
    Ultra-fast 8ms* low input lag conveys your sights, hearings, and thoughts into actions with zero delay. (*Input lag is 8ms: 1080p@120Hz, 16ms:1080p@60Hz, 33ms: 4K@60Hz downscaling to 1080p)

    Black Detail Enhancement
    Detect and react one step quicker to approaching dangers by easily mapping out details in the dark with BenQ-exclusive Black Detail Enhancement, which accentuates fine details in dark scenes without sacrificing color performance in brighter areas.

    Indulge in Immersive Sound
    The 5W chambered speaker upgraded with a wider frequency range for deep bass and soaring highs, BenQ audio-enhancing technology also provides exclusive EQ algorithms for pure clarity and sensual sound quality.

    Endless Entertainment
    Lose yourself in your favorite content with direct access to streaming apps. Use Android TV to watch all your beloved streaming apps like Prime Video, Hulu, YouTube, and more. *Note: Netflix only supports specific authorized devices and is not natively available on BenQ smart home projectors. Please follow these recommended viewing procedures.

    Flexible Installation

    Digital Lens Shift
    Digital lens shift provides perfectly straight-edged images, allowing more flexible installation and placement options.

    Auto Vertical Keystone
    Auto vertical keystone self-adjusts for squared images, letting you easily project aligned images from various angles.

    Projection Distance
    1.3x zoom maximizes available space with a range of throw distances for big-screen entertainment without the hassle of complicated installation.

    Universal Connectivity

  • Category Specification
    Display
    Brightness (ANSI lumens) 3500
    Native Resolution 1080P (1920x1080)
    Native Aspect Ratio 16:9
    Contrast Ratio (FOFO) 10,000:1
    Display Color 30-bit (1.07 billion colors)
    Light Source Lamp
    Light Source Life a. Normal 4000 hrs, c. SmartEco 8000 hrs, d. LampSave 15000 hrs, b. ECO 10000 hrs
    Optical
    Throw Ratio 1.127~1.46
    Zoom Ratio 1.3x
    Lens F/#=1.942.07;f=11.915.5 mm
    Projection Offset 105%
    Keystone Adjustment 1D, (Auto) Vertical ± 40 degrees
    Picture
    Rec. 709 Coverage 95%
    Picture Modes 3D, Bright, Cinema, Game, HDR, HLG, Living Room, Sports, User 1, User 2
    Compatibility
    Input Lag 16.7 ms (1080P 60Hz), 33.4 ms (4K 60Hz) *downscaling to 1080p, 8.3 ms (1080P 120Hz)
    Resolution Support VGA (640 x 480) to 4K UHD (3840 x 2160)
    Horizontal Frequency 15K~102KHz
    I/O Interface
    PC in (D-sub 15pin) (x1), PC in-1 (shared with component video)
    HDMI in (x2), HDMI-1 (2.0b/HDCP2.2), HDMI-Internal (2.0b/HDCP2.2)
    USB Type A (x1), USB Type A-1 (2.0/Power Supply1.5A)
    RS232 in (DB-9pin) (x1)
    Audio
    Speaker (x1), 5W Chamber
    Audio in (3.5mm Mini Jack) (x1)
    Audio out (3.5mm Mini Jack) (x1)
    HDMI Audio Return ARC, 5.1 channel
    Environment
    Operating Temperature 0~40℃
    Power Supply AC 100 to 240 V, 50/60 Hz
    Typical Power Consumption (110V) 297W/110V
    Stand-by Power Consumption <0.5W
    Acoustic Noise (Typ./Eco.) (dB) 35/29 dB
    Accessories
    Android TV dongle QS01, (Standard)
    Carry Bag 5J.J3T09.001, (Optional)
    Remote Control w/ Battery RCI067
    Power Cord (by region) x1 (1.8M)
    3D Glasses DGD5, (Optional)
    Quick Start Guide (x1) 21L
    Warranty Card (by region) Yes
    Universal Ceiling Mount CM00G3, (Optional)
    Dimension & Weight
    Dimensions (WxHxD) (mm) 312 x 110 x 225
    Net Weight (kg) 2.79
    Dimensions (WxHXD) (inch) 12.28 x 4.3 x 8.85
    Net Weight (lb) 6.15
    Projection System
    Projection System DLP
  • Description Downloads
    Datasheet Download
    User Manual Download
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LATEST CASE STUDIES

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  • Digital Menu Boards & High-Brightness Display for Karak Chaii, Southall
    February 26, 2026

    Digital Menu Boards & High-Brightness Display for Karak Chaii, Southall

    HOSPITALITY • DIGITAL MENU BOARDS
    43-inch 4K vivid-bright digital menu board installed by ScreenMoove, ceiling mounted for a clean finish, delivering sharper menu clarity, flexible content updates and reliable 24/7 commercial performance.
    Client
    Karak Chaii
    Location
    Southall
    Sector
    Hospitality
    Installation Date
    February 2026
    Solution
    Digital Menu Boards
    Products
    43" Digital Signage Display
  • Digital Signage & Installation Service for A MANO, Orpington
    January 22, 2026

    Digital Signage & Installation Service for A MANO, Orpington

    RETAIL • Digital Signage
    Window-facing 55-inch digital signage installed for A MANO in Orpington, delivering vivid-bright 800 cd/m2 visibility, CMS-controlled updates, and street-level brand impact and daily promotion.
    Client
    A Mano
    Location
    Orpington
    Sector
    Hospitality
    Installation Date
    January 2026
    Solution
    Digital Signage + Installation
    Products
    55" Digital Signage Display
  • Woodys Case Study - Digital Signage
    January 14, 2026

    Digital Menu Boards with Custom Curved Mount Installation for Woodys, Andover

    HOSPITALITY • DIGITAL MENU BOARDS
    Four-screen digital menu boards installed for Woodys in Andover, featuring a bespoke curved mounting layout and CMS-controlled content for a bold, immersive menu experience.
    Client
    Woodys
    Location
    Andover
    Sector
    Hospitality, QSR
    Installation Date
    February 2025
    Solution
    Digital Menu Boards + CMS
    Products
    43" Digital Menu Boards
  • Digital Signage & Freestanding Display for Naan Staap, Leicester
    January 14, 2026

    Digital Signage & Freestanding Display for Naan Staap, Leicester

    HOSPITALITY • DIGITAL MENU BOARDS
    Multi-screen digital menu boards and floor-to-ceiling ultra-high-brightness window display installed for Naan Staap in Leicester, delivering clear menus and strong street-level visibility impact.
    Client
    Naan Staap
    Location
    Leicester
    Sector
    Hospitality, QSR
    Installation Date
    May 2025
    Solution
    Menu Boards + UHD Display
    Products
    32" Menu Boards & 49" Display
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Need wall mounting, ceiling mounting, floorstands, video wall brackets or full installation support? We can advise the practical route.

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For menu boards, retail signage, reception screens and internal communication displays, we can guide you on CMS setup and content control.

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