BenQ W4100i – 4K 3200 Lumen DLP 4LED Projector

BenQ W4100i – 4K 3200 Lumen DLP 4LED Projector

The BenQ W4100i is a 4K UHD (3840 x 2160) home cinema projector using a 4LED light source and 1-chip DMD display system. It produces 3,200 ANSI lumens of brightness with 100% DCI-P3 and 100% Rec. 709 color coverage, and includes a certified Android TV dongle for built-in 4K HDR streaming with support for Netflix, Prime Video, Disney+, and YouTube.

• 4K UHD (3840 x 2160) resolution, 1-chip DMD display system
• 4LED light source (approximately 20,000–30,000 hour lifespan)
• 3,200 ANSI lumens brightness
• 3,000,000:1 contrast ratio (FOFO, with light source dimming)
• 100% DCI-P3 and 100% Rec. 709 color gamut with individual factory calibration (Delta E<2)
• HDR10+, HDR10, and HLG support with Dynamic Tone Mapping
• AI Cinema Mode with real-time scene analysis and optimization
• Three HDMI 2.1 inputs (HDCP 2.3) with eARC and Dolby Atmos pass-through
• 4-way lens shift (vertical 0%–60%, horizontal ±15%) and 1.3x zoom
• Certified Android TV dongle included (Netflix, Disney+, Prime Video, YouTube, Chromecast built-in)
• Filmmaker Mode and 24P True Cinema playback support
• ISF calibration ready; BenQ Palette Master Ultimate compatible
• 4K@60Hz gaming with 17.9ms input lag and Auto Low Latency Mode (ALLM)
• RS-232 serial control and 12V trigger output

Highlights & Key Technologies

CinematicColor with 100% DCI-P3
The W4100i delivers 100% DCI-P3 and 100% Rec. 709 color space coverage through BenQ's CinematicColor technology. Each unit ships with an individual factory calibration report verifying Delta E<2 color accuracy. For advanced calibration, the projector provides 11-level color temperature tuning with independent white balance controls across high to low brightness levels, along with a full Color Management system covering eight color channels (RGBCMYFW) with individual Hue, Saturation, and Gain adjustments. ISF Day and ISF Night picture modes are available for professional calibration by ISF-certified technicians. BenQ Palette Master Ultimate software compatibility enables ongoing color maintenance over time.

HDR-PRO Technology
The W4100i supports HDR10+, HDR10, and HLG content with BenQ's HDR-PRO technology. This includes a Global Contrast Enhancer that applies custom-tailored contrast curves across dark, mid, and bright areas of the entire frame, and a Local Contrast Enhancer that refines contrast in over 1,000 independent regions per frame. Dynamic Tone Mapping analyzes each frame of HDR content in real time, dynamically adjusting tone curves to preserve both bright highlights and deep shadow details. Dynamic Black adjusts the projection light output by detecting imagery to optimize contrast. An HDR Brightness control provides five levels of adjustment (-2 to +2) for manual fine-tuning.

AI Cinema Mode
AI Cinema Mode analyzes image composition in real time, automatically optimizing HDR, color saturation, and sharpness. The projector also includes built-in Noise Reduction (Off/Low/Middle/High) to enhance compressed streaming content. Additional CinemaMaster processing includes Color Enhancer for saturation adjustment, Pixel Enhancer 4K for super-resolution enhancement, and Motion Enhancer 4K for motion estimation/motion compensation to improve picture smoothness.

Connectivity & Audio
The W4100i provides three HDMI 2.1 inputs (all HDCP 2.3), with HDMI-2 supporting eARC/ARC with Audio Return+ for multi-channel audio output including 2.0, 5.1, 7.1, and Dolby Atmos pass-through to external audio systems via a single HDMI cable. HDMI-3 supports 4K@120Hz input (output downscaled to 1080p@120Hz). Additional outputs include SPDIF digital audio, a 3.5 mm audio jack, and a 5-watt internal speaker. HDMI CEC device control supports automatic power on/off synchronization with connected devices. A USB 2.0 Type-A media reader port supports playback of image, video, and audio files from a USB flash drive. RS-232 serial control (9-pin) and 12V DC trigger output are included for integration with automation systems.

Smart Streaming with Android TV
The included certified Android TV dongle provides built-in access to Netflix, Prime Video, Disney+, YouTube, and over 700,000 titles from Google Play. Chromecast is built in and Google Voice Search with Google Assistant is supported. The dongle connects via an internal HDMI port and is powered by an internal USB Micro B connection. The projector supports HDR10+, HDR10, and HLG streaming content.

Installation Flexibility
The W4100i features a 1.3x zoom lens (F = 1.8–2.25, f = 17.02–22.21 mm) with a throw ratio of 1.15–1.50 and 4-way lens shift (vertical 0%–60%, horizontal ±15%). The projector supports front table, front ceiling, rear table, and rear ceiling mounting positions with automatic position detection. 2D keystone correction (horizontal and vertical ±30°), Corner Fit adjustment for all four corners, and edge masking (top/bottom/left/right) are available. A built-in test pattern aids in setup alignment. High Altitude Mode is available for installations between 1,500–3,000 m above sea level.

Picture Modes & Filmmaker Mode
The W4100i includes multiple picture mode presets: Bright, Bright Cinema, AI Cinema, Cinema, Filmmaker Mode, 3D, HDR AI Cinema, HDR10, Filmmaker Mode (HDR), HDR10+, HLG, ISF Night, ISF Day, and a customizable User mode. Filmmaker Mode preserves the original motion cadence, color, dynamic range, and brightness as intended by the director, and automatically enables 24P True Cinema for judder-free playback of 24 fps content. A user-definable picture mode allows loading settings from any preset as a starting point, with full rename capability.

Details & Specifications

MODEL INFORMATION
Model: W4100i
Series: Home Cinema

OPTICAL
Resolution: 3840 x 2160 (4K UHD)
Display system: 1-chip DMD
Light source: 4LED
Light source life: Approximately 20,000–30,000 hours
Brightness: 3,200 ANSI lumens
Contrast ratio: 3,000,000:1 (FOFO, with light source dimming)
Color gamut: 100% DCI-P3, 100% Rec. 709
Color accuracy: Delta E<2 (individually factory calibrated)
Lens: F = 1.8–2.25, f = 17.02–22.21 mm
Zoom ratio: 1.3x
Throw ratio: 1.15–1.50
Lens shift: Vertical 0%–60%, Horizontal ±15%
Clear focus range: 1.52–5.09 m (Wide); 1.99–6.64 m (Tele)
Aspect ratio options: Auto, 4:3, 16:9, 2.4:1

HDR SUPPORT
HDR formats: HDR10+, HDR10, HLG
HDR processing: Dynamic Tone Mapping, Global Contrast Enhancer, Local Contrast Enhancer, Dynamic Black
HDR Brightness adjustment: -2 to +2 (5 levels)

PICTURE MODES
SDR modes: Bright, Bright Cinema, AI Cinema, Cinema, Filmmaker Mode, 3D, ISF Night, ISF Day, User
HDR modes: HDR AI Cinema, HDR10, Filmmaker Mode (HDR), HDR10+, HLG
24P True Cinema: Supported (auto-enabled in Filmmaker Mode)

LIGHT SOURCE MODES
Normal: Full brightness
ECO: Reduced brightness for extended light life and lower fan noise
Low Dynamic: Automatic black level adjustment with smooth transitions
High Dynamic: Automatic black level adjustment with fast transitions

CONNECTIVITY — INPUTS
HDMI-1: HDMI 2.1 (HDCP 2.3)
HDMI-2: HDMI 2.1 (HDCP 2.3) with CEC, ARC, and Audio Return+ (multichannel audio output)
HDMI-3: HDMI 2.1 (HDCP 2.3), supports 4K@120Hz (output downscaled to 1080p@120Hz)
Internal HDMI: Mini HDMI Male (2.0b, HDCP 2.2) for Android TV dongle
USB 2.0 Type-A: Media reader (5V/1.5A)
USB 2.0 Type-A: Power supply only (5V/2.5A, projector power-on)
USB Mini B: Firmware update (service)
Internal USB Micro B: Android TV dongle power (5V/1.5A)

CONNECTIVITY — OUTPUTS
SPDIF: Digital audio output
Audio jack: 3.5 mm analog audio output
HDMI-2 Audio Return+: Supports 2.0, 5.1, 7.1, and Dolby Atmos pass-through
Audio output formats: Auto, LPCM (2-channel), RAW (5.1/7.1-channel), RAW+ (Dolby Atmos)

CONNECTIVITY — CONTROL
RS-232: 9-pin serial control
12V DC trigger: 1 output (0.5A, 3.5 mm plug with two rings)
IR receiver: 2 (front and top)

SPEAKER
Internal speaker: 5 watts x 1
Sound modes: Cinema, Music, Game, Sports (treVolo / Bongiovi DPS technology)

SMART STREAMING (ANDROID TV)
Dongle: Certified Android TV dongle (included, regional availability varies)
Streaming apps: Netflix, Prime Video, Disney+, YouTube
Google Play: Access to 700,000+ titles
Chromecast: Built-in
Voice control: Google Voice Search and Google Assistant

GAMING
Input lag: 17.9ms at 4K@60Hz
Fast Mode: Supported at 1080p 60Hz/120Hz/240Hz and 4K 60Hz
ALLM: Auto Low Latency Mode supported
4K@120Hz: Supported on HDMI-3 (output downscaled to 1080p@120Hz)

3D
3D modes: Auto, Frame Sequential, Frame Packing, Top Bottom, Side by Side
3D Sync Invert: Disable/Invert

IMAGE ADJUSTMENT
2D Keystone: Horizontal ±30, Vertical ±30
Corner Fit: 4-corner adjustment (Top Left, Top Right, Bottom Left, Bottom Right)
Masking: Top, Bottom, Left, Right
Projector position: Auto, Front, Front Ceiling, Rear, Rear Ceiling
High Altitude Mode: For installations between 1,500–3,000 m above sea level

ELECTRICAL
Power supply: AC 100–240V, 4.3A, 50–60Hz (Automatic)
Power consumption: 380W (Max); <0.5W (Standby)

PHYSICAL SPECIFICATIONS
Dimensions: 420.5 x 312.1 x 135.3 mm (W x D x H)
Weight: 6.1 kg ± 100 g (13.45 ± 0.22 lbs)

ENVIRONMENTAL
Operating temperature: 0°C–40°C at sea level (Normal mode; >35°C at ECO light source power)
Storage temperature: –20°C–60°C at sea level
Operating/storage humidity: 10%–90% (non-condensing)
Operating altitude: 0–1,499 m at 0°C–35°C; 1,500–3,000 m at 0°C–30°C (High Altitude Mode on)

INCLUDED ACCESSORIES
BenQ W4100i projector
Remote control with batteries (regional availability varies)
Power cord
Lens cover (pre-installed)
Calibration report
Android TV dongle (regional availability varies)
Quick guide
User documentation