BenQ LH750 vs Optoma ZH451

BenQ LH750 is in stock. Optoma ZH451 is better for gaming and lighter.

	BenQ LH750$1,399 · Amazon Buy	Optoma ZH451

Key differences
White light output
White light output	5,000 lm ANSI	4,600 lm ISO
Throw ratio
Throw ratio	1.16–1.88:1	1.4–2.24:1
Lowest input lag
Lowest input lag	33.4 msDerived	8.6 msDerived
HDR formats
HDR formats	HDR10, HLG	—
Light source
Light source	LED	Laser (phosphor)
Fan noise
Fan noise	Normal 34 dB(A) · Eco 29 dB(A)	Max 31 dB(A) · Eco 29 dB(A)
MSRP
MSRP	€1,399	—
Best price
Best price	$1,399	—
Room fit80″100″120″150″
Distance to screen
Distance to screen	2.6–4.2 m	3.1–5.0 m
Picture
White light output
White light output	5,000 lm ANSI	4,600 lm ISO
Brightness uniformity
Brightness uniformity	—	75%
Imaging technology
Imaging technology	DLP	DLP
Native resolution
Native resolution	1080p (1920 × 1080)	1080p (1920 × 1080)
Native aspect
Native aspect	16:9Derived	16:9Derived
Dynamic contrast
Dynamic contrast	500,000:1	3,000,000:1
Colour gamut
Colour gamut	Rec. 709 98% 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, Custom	—
Colour temperature presets
Colour temperature presets	Native, Custom	—
HDR formats
HDR formats	HDR10, HLG	—
Colour management (CMS)
Colour management (CMS)	6-axis	—
3D
3D	Yes	Yes
3D formats
3D formats	Frame packing, Side-by-side, Top-bottom, Frame sequential	Frame packing, Side-by-side, Top-bottom
3D glasses sync
3D glasses sync	—	DLP-Link
Light source
Light source
Light source	LED	Laser (phosphor)
Emitter
Emitter	4-channel LED	—
Light-source life
Light-source life	20,000 h normal · 30,000 h eco	30,000 h
Light output control
Light output control	Continuous	Steps
Warm-up time
Warm-up time	10 s	—
Cool-down time
Cool-down time	2 s	—
Optics
Throw ratio
Throw ratio	1.16–1.88:1	1.4–2.24:1
Image size
Image size	30–300 in	30–300 in
Projection offset
Projection offset	100%	116%
Zoom
Zoom	Optical	Optical
Zoom ratio
Zoom ratio	1.62×Derived	1.6×Derived
Focal length
Focal length	17.2–27.7 mm	20.91–32.62 mm
Aperture (f-number)
Aperture (f-number)	1.5–2.08	2.5–3.26
Focus
Focus	Manual	Manual
Autofocus
Autofocus	No	No
Vertical keystone
Vertical keystone	40°	30°
Horizontal keystone
Horizontal keystone	40°	30°
Auto keystone
Auto keystone	Yes	—
Corner correction
Corner correction	4-corner	4-corner
Lens material
Lens material	Glass	—
Motion & gaming
Max input refresh
Max input refresh	1080p: 120 Hz	—
Input lag
Input lag	1080p: 60 Hz 33.4 ms	1080p: 60 Hz 17 ms · 120 Hz 8.6 ms · 4K UHD: 60 Hz 16.9 ms
Inputs & control
HDMI inputs
HDMI inputs	2 × HDMI 2.0 (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
Control ports
Control ports	RS-232, Wired IR	RS-232, 12 V trigger
PJLink
PJLink	—	Class 2
Control-system drivers
Control-system drivers	Crestron	Crestron, AMX
Horizontal scan
Horizontal scan	15–135 kHz	15–135 kHz
Vertical scan
Vertical scan	23–120 Hz	24–120 Hz
Smart platform
Ethernet
Ethernet	Yes	Yes
Audio
Speaker power
Speaker power	20 W	15 W
Speakers
Speakers	1	1
Layout
Layout	Mono	Mono
Audio outputs
Audio outputs	3.5 mm	3.5 mm
HDMI audio return
HDMI audio return	NoneDerived	NoneDerived
Physical & installation
Dimensions (W × D × H)
Dimensions (W × D × H)	421 × 286 × 132 mm	274 × 216 × 114 mm
Weight
Weight	5,800 g	2,998 g
Orientations
Orientations	Table, Ceiling, Rear	Table, Ceiling, Rear, Portrait, 360°
Ceiling mount
Ceiling mount	M4, 8 mm screws	M4, screws ≥ 10 mm
Ingress protection
Ingress protection	—	IP6X
Environment & power
Operating temperature
Operating temperature	0–40°C	0–40°C
Operating humidity
Operating humidity	10–90%RH	0–80%RH
Altitude
Altitude	3,000 m · high-altitude mode	2,500 m · high-altitude mode
Power draw
Power draw	Max 415 W · Normal 360 W	Max 170 W · Eco 120 W
Standby
Standby	Up to 0.5 W	Up to 0.5 W
Networked standby
Networked standby	Up to 2 W	—
Power supply
Power supply	—	External adapter
Mains input
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Fan noise
Fan noise	Normal 34 dB(A) · Eco 29 dB(A)	Max 31 dB(A) · Eco 29 dB(A)
Safety & support
Laser class
Laser class	—	Class 1
Risk group
Risk group	RG2	RG2
Marks
Marks	—	FCC
User manual
User manual	https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20BUSINESS/UserManual/LH750/LH750_UM_EN_250618184335.pdf	https://region-resource.optoma.com/products/documents/mpTwkm9mUWvfsgMhppFmV04EqeoeeRYWmvKy7tBF.pdf
In the box
In the box
In the box	Power cord, Remote, Remote batteries, Quick start guide, User manual, Warranty card, HDMI cable	Power cord, Remote, Remote batteries, User manual
Remote
Remote	IR	—

BenQ LH750$1,399 · Amazon

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Optoma ZH451