BenQ W4100i | 4K HDR LED Smart Projector with 100% DCI-P3 & AI Cinema

A 150” Screen from Just 2.6m. One Button to Brilliant 4K Fun

Movies, Games, Sports. Let the Party Begin

Cinematic Brilliance with 3000 ANSI Lumens

Powered by BenQ CinematicColor and HDR-PRO technologies, TK705STi delivers dramatic 4K visuals with vivid contrast, rich tones, and cinematic depth, bringing every movie and game to life in truly immersive detail, even in well-lit rooms.

Expand Your Entertainment: Low Input Lag, HDMI 2.1, Custom Game Mode

Whether you're battling friends or exploring new worlds, TK705i delivers sharp moves and instant responses. Enjoy smooth, immersive gameplay on PS5, PS4, Xbox Series X, Nintendo Switch, and Steam Deck.

Gain the Competitive Edge with 5ms Precision

Powered by HDMI 2.1 and ALLM (Auto Low Latency Mode), TK705i automatically detects gameplay signals to reduce video delay, so you're always ready with low input lag and ultra-responsive visuals.

Experience ultra-responsive gameplay with 5 ms input lag at 4K/60Hz, turning your sight, hearing, and reflexes into instant action.

USB-C 30W: Charge and Play Anytime

TK705STi is the only projector in its class with USB-C (up to 30W) charging, letting you power your device while you play. No breaks, no dead batteries.

Display

Optical

• Brightness (ANSI lumens):3200
• Resolution:4K UHD (3840×2160)
• Native Aspect Ratio:16:9
• Contrast Ratio (FOFO): 3,000,000:1
• Display Color:30-bit (1.07 billion colors)
• Light Source:4LED
• Light Source Life:a. Normal 20000 hrs, b. ECO 25000 hrs

• Throw Ratio:1.15 ~ 1.50
• Zoom Ratio:1.3x
• Lens:F/# 1.8 - 2.25 mm, f 17.02 (Wide)~22.21(Tele)
• Keystone Adjustment:2D, Vertical ± 30 degrees; Horizontal ± 30 degrees
• Lens Shift Vertical:0%-60%
• Lens Shift Horizontal:max +15%~-15% H @ 20.9% V

Picture

Compatibility

• DCI-P3 Coverage:100%
• Rec. 709 Coverage:100%
• Picture Modes:AI Cinema, HDR AI Cinema, 3D, Bright, Bright Cinema, Cinema, FILMMAKER MODE, FILMMAKER MODE HDR, HDR10, HDR10+, HLG, ISF Day, ISF Night, User

• Input Lag:6.5ms (1080P 240Hz), 13 ms (1080p@120Hz), 17.9ms (1080P 60Hz), 17.9ms (4K 60Hz)
• Resolution Support:VGA (640 x 480) to 4K UHD (3840 x 2160)
• Horizontal Frequency:15K~270KHz
• Vertical Scan Rate:23~240Hz

I/O Interface

Audio

• HDMI in:HDMI-1 (2.1/HDCP2.3) (4K 60Hz/ALLM), HDMI-2 (2.1/HDCP2.3) (4K 60Hz/ALLM/Audio Return+), HDMI-3 (2.1/HDCP2.3)(4K 120Hz *downscaling to 1080p 120Hz), (x3), HDMI-Internal (2.0b/HDCP2.2)
• USB Type A:USB Type A-2 (2.0/Power Supply1.5A/Reader/FW Upgrade), (x2), USB Type A-3 (2.0/Power Supply2.5A)
• USB Type Mini B:(x1), USB Type Mini B-1(service)
• RS232 in (DB-9pin):(x1)
• DC 12V Trigger (3.5mm Jack):(x1)

• Speaker:(x1), 5W
• Audio out (3.5mm Mini Jack):(x1)
• HDMI Audio Return:Yes, eARC, Dolby Atmos
• S/PDIF:Multi-Channel, RAW

Environment

Accessories

• Operating Temperature:0~40℃
• Power Supply:AC 100 to 240 V, 50/60 Hz
• Typical Power Consumption (110V):330W
• Stand-by Power Consumption:<0.5W
• Acoustic Noise (Typ./Eco.)(dB):30/29

• Android TV dongle:QS02, (Standard)
• Remote Control w/ Battery:RCI074
• Power Cord (by region):x1 (3.0M)
• 3D Glasses:(Optional)
• Quick Start Guide:(x1) 21L
• Warranty Card (by region):Yes
• Lens cover:Yes
• Universal Ceiling Mount:CM00G3, (Optional)

Dimension & Weight

Smart System

• Dimensions (WxHxD) (mm):420.5 x 135.3 x 312.1
• Net Weight (kg):6.1
• Dimensions (WxHXD) (inch):16.56 x 5.31 x 12.28
• Net Weight (lb):13.45

• Built-in OS:Yes, Android 11.0
• Bluetooth:Yes, Bluetooth 5.0
• Wi-Fi Standard:802.11 a/b/g/n/ac (2.4G/5G)
• Wireless Projection:AirPlay, Google Cast

Projection System

• Projection System:DLP