Description
BenQ W4100i 4K HDR Home Cinema Projector – 3200 ANSI Lumens, 100% DCI-P3 & AI Cinema
The BenQ W4100i is a premium 4K UHD home cinema projector designed for movie enthusiasts, home theatre owners and entertainment lovers who want detailed visuals, accurate colours and immersive HDR performance. Featuring 3840 × 2160 resolution, 3200 ANSI lumens brightness and a long-lasting 4LED light source, the W4100i delivers a compelling big-screen experience for movies, streaming, sports and other home entertainment.
Built around BenQ’s CinematicColor technology, the projector offers 100% DCI-P3 and 100% Rec.709 colour coverage, helping reproduce the rich colours and natural tones intended by filmmakers. Its advanced HDR-PRO technology, HDR10+ support and AI Cinema Mode work together to optimise brightness, contrast, sharpness and colour reproduction for compatible content.
The W4100i also combines practical installation features with modern connectivity. A 1.3× zoom lens, vertical and horizontal lens shift, and 2D keystone correction provide flexibility when positioning the projector. With three HDMI 2.1 inputs, eARC, Dolby Atmos pass-through, 4K support and the BenQ SmartRemote app, it is designed to integrate into a modern home theatre setup.
4K UHD Resolution for Detailed Home Cinema
The BenQ W4100i features a 4K UHD resolution of 3840 × 2160, delivering detailed images with sharp textures, fine edges and clear on-screen text.
The high resolution is particularly beneficial when projecting movies and other high-resolution content onto a large screen. It helps preserve detail in landscapes, facial features, cinematic scenes and visually complex sequences.
The projector is suitable for a variety of home entertainment applications, including:
- 4K movies and streaming
- Television series
- Sports and live events
- Documentaries
- Animated films
- Console gaming
- Home theatre presentations
With its native 16:9 aspect ratio, the W4100i is designed to display widescreen content in the familiar format used by most modern televisions and streaming platforms.
3200 ANSI Lumens for Bright, Immersive Images
With 3200 ANSI lumens brightness, the W4100i is designed to deliver vivid projected images across a range of home entertainment environments.
Its brightness helps maintain visible highlights, colourful scenes and detailed imagery when watching compatible content. Actual picture performance depends on screen size, screen gain, ambient light, projection distance and selected picture mode.
For the most cinematic experience, use a suitable projection screen and control ambient lighting where possible.
CinematicColor with 100% DCI-P3 & Rec.709
Accurate colour reproduction is central to a convincing home cinema experience. The W4100i uses BenQ CinematicColor technology to reproduce colours across two important colour spaces:
- 100% DCI-P3
- 100% Rec.709
DCI-P3 is widely associated with digital cinema content, while Rec.709 is commonly used for HD video production and distribution.
This broad colour coverage helps the projector reproduce rich reds, natural skin tones, vivid greens and detailed colour transitions across compatible content.
The result is a viewing experience designed to preserve the intended visual character of movies, television and other professionally produced media.
HDR-PRO with HDR10+ & HLG
The BenQ W4100i supports advanced HDR formats, including HDR10, HDR10+ and HLG.
HDR content can contain a wider range of brightness information than standard dynamic range video. BenQ’s HDR-PRO technology is designed to optimise the presentation of bright highlights, dark scenes and mid-tone details.
HDR-PRO Features
- HDR10 Support
- HDR10+ Support
- HLG Support
- Multi-stage Light Control
- Dynamic Contrast Enhancement
- Brightness and Shadow Detail Optimisation
HDR10+ uses dynamic metadata to adjust HDR presentation on a scene-by-scene or frame-by-frame basis, depending on the content and implementation. This can help compatible content retain more balanced highlights and shadow details.
AI Cinema Mode for Smarter Image Optimisation
The AI Cinema Mode is designed to analyse image composition and automatically adjust selected picture characteristics.
It can optimise supported aspects of:
- HDR presentation
- Colour saturation
- Image sharpness
- Visual detail
- Streaming picture quality
The projector also includes built-in noise reduction designed to improve the appearance of compressed streaming content. This can be useful when watching online videos and other sources where compression artefacts may be visible.
AI Cinema Mode offers a convenient option for users who want automatic picture optimisation without repeatedly adjusting individual settings.
Out-of-the-Box Colour Accuracy
The W4100i is designed for users who value colour accuracy in home cinema.
BenQ’s individual factory calibration reports are intended to document colour performance and support accurate reproduction of key colour spaces. The supplied product information specifies 100% DCI-P3 and 100% Rec.709 coverage, with optimised Rec.709 colour settings.
For users who want to fine-tune the image, the projector also provides advanced colour adjustment options. Actual colour performance can vary with picture mode, calibration, projection screen characteristics and room conditions.
11-Level Colour Temperature Tuning
The projector includes 11-level white-balance and colour-temperature controls, allowing users to adjust colour balance across different brightness levels.
These controls can help fine-tune neutral tones and mid-range colours for different viewing environments and personal preferences.
This flexibility is useful for home theatre enthusiasts who want greater control over the appearance of movies and other visual content.
Filmmaker Mode for Director-Intended Viewing
Filmmaker Mode is designed to preserve the intended presentation of compatible film content by using a more cinema-oriented picture configuration.
It aims to retain the original look of the content, including colour, brightness, dynamic range and motion cadence, rather than applying unnecessary image processing.
For movie enthusiasts, Filmmaker Mode provides a convenient starting point for a more faithful home cinema experience.
BenQ AQCOLOR Pilot for Colour Maintenance
The W4100i supports BenQ AQCOLOR Pilot, a tool intended to help users manage and maintain colour accuracy in supported workflows.
It provides additional support for users who want to keep the projector’s colour presentation consistent over time and adapt it to their viewing environment.
For colour-conscious home theatre owners, this complements the projector’s wide colour gamut and calibration-focused features.
24P Playback for Cinematic Motion
Many feature films are produced at 24 frames per second (24p). The W4100i supports 24p playback from compatible high-definition sources, including HDR content, helping preserve the original cinematic frame cadence.
Correct handling of 24p content can reduce unwanted judder caused by inappropriate frame-rate conversion and provide a more natural film presentation.
4LED Light Source for Long-Term Performance
The W4100i uses a 4LED light source designed to deliver bright, colourful images with long operating life.
The supplied specifications list the following estimated light-source life:
- Normal Mode: Up to 20,000 hours
- ECO Mode: Up to 30,000 hours
Actual life varies according to operating conditions, selected modes and usage patterns. The long rated life helps reduce the need for frequent light-source replacement compared with traditional lamp-based projection systems.
Flexible Projection with 1.3× Zoom
The W4100i includes a 1.3× optical zoom lens with a specified throw ratio of 1.15–1.50.
This gives installers flexibility when selecting a projection distance for a suitable screen size. The zoom adjustment can help accommodate different room layouts without requiring the projector to be moved for every minor framing adjustment.
The projector’s approximate lens specifications include:
- Throw Ratio: 1.15–1.50
- Optical Zoom: 1.3×
- Lens Aperture: F/1.8–2.25
- Focal Length: 17.02–22.21mm
- Lens Offset: 0%
For accurate installation, calculate the required throw distance using the intended screen dimensions and BenQ’s official projection-distance guidance.
Motorised Lens Shift for Easier Installation
The projector supports motorised vertical and horizontal lens shift, allowing the projected image to be repositioned without relying entirely on digital correction.
The supplied specifications list vertical lens-shift adjustment of 0–60% and horizontal adjustment of up to ±15% at 20.9% vertical shift.
Lens shift is particularly useful for ceiling-mounted installations and home theatres where the projector cannot be positioned directly in line with the screen.
2D Keystone Correction
The W4100i includes 2D keystone correction with the following specified ranges:
- Vertical: ±35°
- Horizontal: ±35°
Keystone correction helps correct trapezoidal image distortion when the projector is not perfectly aligned with the projection surface.
For the best image quality, physical placement and lens shift should be prioritised where practical, with digital correction used as needed.
HDMI 2.1 Connectivity for Modern Entertainment
The W4100i provides multiple HDMI interfaces for connecting compatible home entertainment devices.
HDMI Connectivity
- 3 × HDMI 2.1 inputs
- HDCP 2.3 support on the specified HDMI 2.1 inputs
- Additional internal HDMI 2.0b interface with HDCP 2.2
- Support for compatible 4K video sources
- ALLM support on specified HDMI inputs
The HDMI 2.1 connections make it easier to integrate compatible media players, streaming devices, gaming systems and other home theatre sources. Supported refresh rates depend on the specific input and connected device.
eARC & Dolby Atmos Audio Pass-Through
The W4100i supports HDMI eARC and Dolby Atmos audio pass-through, allowing compatible audio signals to be sent to a supported external sound system.
The projector can therefore be integrated with a compatible AV receiver or soundbar for a more immersive audio experience.
The supplied audio specifications include:
- HDMI eARC
- Dolby Atmos pass-through
- Up to 7.1-channel audio pass-through
- S/PDIF multichannel RAW output
- 3.5mm audio output
For the intended surround-sound format, ensure that the source device, projector connection and receiving audio equipment all support the required signal.
Built-In Speaker for Everyday Audio
The projector includes a 5W built-in speaker, providing basic audio for everyday viewing and simple installations.
For a more cinematic experience, an external soundbar or home theatre system is recommended, particularly when using a large projection screen.
SmartRemote App for Smartphone Control
The SmartRemote for BenQ Projector app provides convenient smartphone control for supported projector functions.
After initial pairing, the app uses a direct connection according to the supplied product information, so a Wi-Fi network or hotspot is not required for the described control workflow.
Supported functions include:
- Power control
- App launching
- Brightness adjustment
- Keystone adjustment
- Convenient smartphone-based operation
This makes everyday projector control more convenient when the physical remote is not nearby.
Picture Modes for Different Content
The W4100i includes a selection of picture modes designed for different viewing situations.
Available modes include:
- AI Cinema
- HDR AI Cinema
- 3D
- Bright
- Bright Cinema
- Cinema
- Filmmaker Mode
- Filmmaker Mode HDR
- HDR
- HDR10
- HDR10+
- HLG
- ISF Day
- ISF Night
- User
These modes provide convenient starting points for movie watching, HDR content, daytime viewing and personalised image adjustments.
Ideal For
- Dedicated Home Theatre Rooms
- 4K Movie Enthusiasts
- HDR10+ Streaming
- Large-Screen Entertainment
- Family Movie Nights
- Sports & Live Events
- Premium Living-Room Cinema
- Cinematic Colour Enthusiasts
- Home AV Systems
- External Soundbar & AV Receiver Setups
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