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Rectangular white projector with front lens and top control panel

BenQ

BenQ X3100i 4K UHD 4LED home theater projector 3300 ANSI lumens 4.2ms 1080p 240Hz

SKU CH-Q1GZ-HX9NA MPN X3100i

A 4K UHD DLP projector with 4LED light source delivering 3300 ANSI lumens, 600,000:1 contrast, 4.2 ms input lag at 1080p 240 Hz, vertical lens shift, Android TV and 7.1-channel audio with eARC

  • Panel typeDLP
  • Image brightness3300
  • Power drawTypical Power Consumption (110 V) 330 W Stand-by Power Consu
  • Light sourceLight Source 4LED Light Source Life a. Normal 20000 hrs, b.
  • Screen ratio16:9
  • Panel resolution4K UHD (3840 × 2160)
  • True 4K UHD resolution shows every detail at 3840×2160
  • Ultra-low 4.2 ms input lag at 1080p 240Hz for responsive gaming
  • 3300 ANSI lumens from 4LED light source keeps images vivid in lit rooms
  • Android TV built in with AirPlay and Chromecast for direct streaming
  • TreVolo audio with 7.1-channel and Dolby Atmos via eARC for immersive sound

True 4K UHD 4LED gaming projector

The BenQ X3100i is a DLP home-theater projector with a native 3840×2160 resolution and a 4LED light source rated for 20000 hours in normal mode or 30000 hours in ECO and SmartECO modes. It delivers 3300 ANSI lumens and a 600000:1 contrast ratio with light-source dimming. The unit includes Google-certified Android TV, 10W TreVolo speakers with 7.1-channel and Dolby Atmos support, and vertical lens shift.

HDMI 2.0b connectivity and refresh limits

Two HDMI 2.0b inputs with HDCP 2.2 handle video up to 1080p at 240Hz, 1080p at 120Hz, 2K at 120Hz, and 4K at 60Hz. Input lag measures 4.2ms at 1080p 240Hz, 8.3ms at 1080p or 2K 120Hz, and 16.7ms at 4K 60Hz. The throw ratio spans 1.15 to 1.50 with a 1.3x zoom, and keystone correction covers ±30 degrees both vertically and horizontally.

Room placement and audio return checks

Verify that your throw distance matches the 1.15–1.50 ratio and that vertical lens shift provides the needed image offset. Confirm your source devices output over HDMI 2.0b for the stated refresh rates and that your audio system can use eARC, S/PDIF, or the 3.5mm jack for 7.1-channel or Dolby Atmos playback.

How it compares

Measured against everything we stock in Home Cinema Projectors, at today’s prices. Recalculated every night.

Price $2,173.99
Pricier than about 80% of the 234 comparable items (median $272.99).

Specifications

Product
Brand nameBenQ
Model nameX3100i
Part numberX3100i
Product typeDLP
Display
Panel typeDLP
Image brightness3300
Light sourceLight Source
4LED
Light Source Life
a. Normal 20000 hrs, b. ECO 30000 hrs, SmartEco 30000 hrs
Screen ratio16:9
Panel resolution4K UHD (3840 × 2160)
Contrast(w/ Lightsource Dimming), 600,000:1
Horizontal scan rate15K~135 kHz
Vertical frequency23 to 240 Hz
Keystone adjustment2D, (Auto) Vertical ± 30 degrees; Horizontal ± 30 degrees
Projection ratio1.15 to 1.5
Audio & video
Lens typeF/# = 1.8–2.25 mm, f = 17.02–22.21 mm
Integrated speakers(x2), 5 W Chamber
Connectivity
Network connectionNo
Ports & slots
Video input typesAnalog RGB, Digital
Video inputs(x2), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2)
Audio outputs3.5 mm Mini Jack
Video outputsS/PDIF, Audio out (3.5 mm Mini Jack), HDMI Audio Return
USB ports(x1), USB Type A(2.0/Reader/FW Upgrade)
Power
Power drawTypical Power Consumption (110 V)
330 W
Stand-by Power Consumption
<0.5 W
Power supply100–240 VAC, 50/60 Hz
Size & build
Product dimensions272 × 213 × 259 mm
Product weight6.8 kg
Shipping weight8.62 kg
Package size400 × 390 × 340 mm
Compatibility
Compatible withInput Lag
16.7 ms (1080P 60 Hz), 16.7 ms (4K 60 Hz), 16.7 ms (2K 60 Hz), 4.2 ms (1080P 240 Hz), 8.3 ms (1080P 120 Hz), 8.3 ms (2K 120 Hz)
Resolution Support
VGA (640 × 480) to 4K UHD (3840 × 2160)
Horizontal Frequency
15K~135 kHz
Vertical Scan Rate
23 to 240 Hz
In the box
In the boxAndroid TV dongle
(Standard), QS02
Remote Control w/ Battery
RCI074
Power Cord (by region)
x1 (1.8M)
Quick Start Guide
(x1) 21L
Warranty Card (by region)
Yes
Universal Ceiling Mount
(Optional), CM00G3
Environment & compliance
Temperature rangeOperating Temperature: 0 to 40 °C
More details
Team affiliationNO

Questions about this item

Which brightness level and lens-shift range suit a living-room setup?

The projector delivers 3300 ANSI lumens with a 40%-60% vertical lens shift and a 1.3x zoom, so you can place it flexibly even with some ambient light.

What does the 4.2 ms figure mean when I connect a console?

At 1080p 240 Hz the input lag drops to 4.2 ms, while 4K 60 Hz runs at 16.7 ms and 1080p 120 Hz at 8.3 ms.

How do the two HDMI 2.0b ports limit resolution and refresh rate?

Each HDMI 2.0b port supports 4K at 60 Hz and 1080p at up to 240 Hz, with HDCP 2.2 for protected content.

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