BenQ X3100i vs Optoma GT2400HDR

BenQ X3100i is better for gaming. Optoma GT2400HDR is $500 cheaper and lighter.

	BenQ X3100i$1,799 · Amazon Buy	Optoma GT2400HDR$1,299 · Amazon Buy

Key differences
White light output
White light output	3,300 lm ANSI	4,200 lm ISO
Throw ratio
Throw ratio	1.15–1.5:1	0.5:1
Lowest input lag
Lowest input lag	4.2 msDerived	8.4 msDerived
Light source
Light source	LED	Laser (phosphor)
Fan noise
Fan noise	Normal 32 dB(A) · Eco 28 dB(A)	Normal 31 dB(A) · Eco 29 dB(A)
MSRP
MSRP	$2,399	—
Best price
Best price	$1,799	$1,299
Room fit80″100″120″150″
Distance to screen
Distance to screen	2.5–3.3 m	1.1 m
Picture
White light output
White light output	3,300 lm ANSI	4,200 lm ISO
Brightness uniformity
Brightness uniformity	—	75%
Imaging technology
Imaging technology	DLP	DLP
Chip / panel diagonal
Chip / panel diagonal	0.65 in	—
Native resolution
Native resolution	1080p (1920 × 1080)	1080p (1920 × 1080)
Native aspect
Native aspect	16:9Derived	16:9Derived
Pixel shift
Pixel shift	XPR 4-way	—
Addressable resolution
Addressable resolution	4K UHD (3840 × 2160)	—
Dynamic contrast
Dynamic contrast	600,000:1	2,000,000:1
Dynamic contrast method
Dynamic contrast method	Light-source dimming	—
Colour gamut
Colour gamut	Rec. 709 95% coverage · DCI-P3 100% coverage	—
Colour bit depth (per channel)
Colour bit depth (per channel)	10 bit	10 bit
Gamma / EOTF presets
Gamma / EOTF presets	2.2, 2.4, 2.6	—
Colour temperature presets
Colour temperature presets	Native	—
HDR formats
HDR formats	HDR10, HLG	HDR10, HLG
Tone mapping
Tone mapping	Adjustable	—
Colour management (CMS)
Colour management (CMS)	6-axis	—
Greyscale control points
Greyscale control points	2	—
3D
3D	Yes	Yes
3D formats
3D formats	Frame packing, Side-by-side, Top-bottom, Frame sequential	Side-by-side, Top-bottom, Frame sequential
3D glasses sync
3D glasses sync	—	DLP-Link
Light source
Light source
Light source	LED	Laser (phosphor)
Emitter
Emitter	4-channel LED	Blue laser + phosphor
Light engine
Light engine	—	DuraCore
Light-source life
Light-source life	20,000 h normal · 30,000 h eco · 30,000 h dynamic	30,000 h eco
Warm-up time
Warm-up time	15 s	—
Cool-down time
Cool-down time	15 s	10 s
Optics
Throw ratio
Throw ratio	1.15–1.5:1	0.5:1
Image size
Image size	60–200 in	30–300 in
Projection offset
Projection offset	110%	116%
Zoom
Zoom	Optical	None
Zoom ratio
Zoom ratio	1.3×Derived	—
Focal length
Focal length	17.02–22.21 mm	7.51 mm
Aperture (f-number)
Aperture (f-number)	1.8–2.25	—
Focus
Focus	Manual	Manual
Autofocus
Autofocus	No	No
Vertical lens shift
Vertical lens shift	±10%	—
Motorised lens shift
Motorised lens shift	No	—
Vertical keystone
Vertical keystone	30°	15°
Horizontal keystone
Horizontal keystone	30°	15°
Auto keystone
Auto keystone	Yes	—
Corner correction
Corner correction	—	4-corner
Motion & gaming
Frame interpolation (MEMC)
Frame interpolation (MEMC)	No	—
Max input refresh
Max input refresh	1080p: 240 Hz · 4K UHD: 60 Hz	1080p: 120 Hz
Input lag
Input lag	1080p: 60 Hz 16.7 ms · 120 Hz 8.3 ms · 240 Hz 4.2 ms · 4K UHD: 60 Hz 16.7 ms	1080p: 60 Hz 16.7 ms · 120 Hz 8.4 ms · 4K UHD: 60 Hz 16.7 ms
Inputs & control
HDMI inputs
HDMI inputs	HDMI 2.0 (HDCP 2.2) · HDMI 2.0 (eARC, HDCP 2.2)	2 × HDMI 2.0
Other video inputs
Other video inputs	—	VGA
Max input resolution
Max input resolution	4K UHD	4K UHD
Audio inputs
Audio inputs	—	3.5 mm
USB media playback
USB media playback	Yes	—
Control ports
Control ports	RS-232, 12 V trigger	RS-232, 12 V trigger
Control-system drivers
Control-system drivers	—	Crestron
Horizontal scan
Horizontal scan	15–135 kHz	15–135 kHz
Vertical scan
Vertical scan	23–240 Hz	24–120 Hz
Smart platform
Wi-Fi
Wi-Fi	Wi-Fi 5	—
Bluetooth
Bluetooth	5.0	None
Ethernet
Ethernet	—	Yes
Smart platform
Smart platform	Android TV	None
OS version
OS version	11	—
Google-certified
Google-certified	Yes	—
Security updates until
Security updates until	31 Dec 2026	—
Netflix
Netflix	Via dongle	—
Casting
Casting	Chromecast built-in	—
Audio
Speaker power
Speaker power	10 W	15 W
Speakers
Speakers	2	1
Layout
Layout	Stereo	Mono
Tuned by
Tuned by	Bongiovi DPS	—
Audio formats
Audio formats	Dolby Atmos	—
Audio outputs
Audio outputs	3.5 mm, Optical, HDMI eARC, Bluetooth	3.5 mm
HDMI audio return
HDMI audio return	eARCDerived	NoneDerived
Physical & installation
Dimensions (W × D × H)
Dimensions (W × D × H)	272 × 259 × 213 mm	274 × 216 × 114 mm
Weight
Weight	6,800 g	3,000 g
Orientations
Orientations	Table, Ceiling, Rear	360°
Ceiling mount
Ceiling mount	M4, 20–25 mm screws	—
Exhaust
Exhaust	Side	—
Ingress protection
Ingress protection	—	IP6X
Environment & power
Operating temperature
Operating temperature	0–40°C	0–40°C
Operating humidity
Operating humidity	10–90%RH	—
Altitude
Altitude	3,000 m · high-altitude mode	3,048 m · high-altitude mode
Power draw
Power draw	Max 360 W · Normal 330 W	Max 170 W · Eco 120 W
Standby
Standby	Up to 0.5 W	Up to 0.5 W
Power supply
Power supply	Built in	—
Mains input
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Fan noise
Fan noise	Normal 32 dB(A) · Eco 28 dB(A)	Normal 31 dB(A) · Eco 29 dB(A)
Safety & support
Laser class
Laser class	—	Class 1
Risk group
Risk group	RG2	RG2
Hazard distance
Hazard distance	—	1 m
Marks
Marks	—	FCC
Warranty
Warranty	3 yr	—
User manual
User manual	https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/X3100i/X3100i_UM_EN_230919170246.pdf	https://region-resource.optoma.com/products/documents/RbyYDr34tZXZAsFhkYCToBBRADe0vG7e5ApSi0Xd.pdf
Firmware
Firmware	1.10	—
In the box
In the box
In the box	Power cord, Remote, Remote batteries, Quick start guide, Warranty card, Streaming dongle	Power cord, Remote, Remote batteries, User manual
Remote
Remote	IR	IR

BenQ X3100i$1,799 · Amazon

Buy

Optoma GT2400HDR$1,299 · Amazon

Buy