Optoma ZH430UST vs Optoma ZH450ST

Optoma ZH430UST is $206 cheaper. Optoma ZH450ST is quieter and lighter.

	Optoma ZH430UST$2,289 · Amazon Buy	Optoma ZH450ST$2,495 · Amazon Buy

Key differences
Throw ratio
Throw ratio	0.25:1	0.5:1
Fan noise
Fan noise	Normal 34 dB(A) · Eco 27 dB(A)	Max 34 dB(A) · Normal 32 dB(A)
MSRP
MSRP	$2,999	$3,499
Best price
Best price	$2,289	$2,495
Room fit80″100″120″150″
Distance to screen
Distance to screen	0.55 m	1.1 m
Picture
Claimed brightness (non-standard)
Claimed brightness (non-standard)	4,000 lm	4,200 lm
Brightness uniformity
Brightness uniformity	75%	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
Dynamic contrast
Dynamic contrast	300,000:1	2,000,000:1
Colour bit depth (per channel)
Colour bit depth (per channel)	10 bit	10 bit
Gamma / EOTF presets
Gamma / EOTF presets	2.2, 2.4	—
HDR formats
HDR formats	HDR10, HLG	HDR10, HLG
3D
3D	Yes	Yes
3D formats
3D formats	Side-by-side, Top-bottom, Frame sequential	Frame packing, Side-by-side, Top-bottom, Frame sequential
3D glasses sync
3D glasses sync	DLP-Link	DLP-Link
Light source
Light source
Light source	Laser (phosphor)	Laser (phosphor)
Light engine
Light engine	DuraCore	—
Light-source life
Light-source life	30,000 h	30,000 h
Light output control
Light output control	Steps	Steps
Constant brightness mode
Constant brightness mode	Yes	—
Cool-down time
Cool-down time	90 s	—
Optics
Throw ratio
Throw ratio	0.25:1	0.5:1
Image size
Image size	80–130 in	36–292 in
Projection offset
Projection offset	120%	116%
Zoom
Zoom	—	None
Focal length
Focal length	3.7 mm	7.51 mm
Aperture (f-number)
Aperture (f-number)	2.44	2.8
Focus
Focus	Manual	Manual
Autofocus
Autofocus	No	No
Vertical keystone
Vertical keystone	5°	30°
Horizontal keystone
Horizontal keystone	5°	30°
Corner correction
Corner correction	4-corner	4-corner
Motion & gaming
Max input refresh
Max input refresh	1080p: 120 Hz · 4K UHD: 60 Hz	1080p: 120 Hz
Input lag
Input lag	1080p: 60 Hz 17 ms · 120 Hz 8.6 ms · 4K UHD: 60 Hz 17 ms	1080p: 60 Hz 17 ms · 120 Hz 8.6 ms
Inputs & control
HDMI inputs
HDMI inputs	2 × HDMI 2.0	2 × HDMI 2.0 (HDCP 2.2)
Max input resolution
Max input resolution	DCI 4K	4K UHD
Control ports
Control ports	RS-232	RS-232
PJLink
PJLink	Class 2	—
Control-system drivers
Control-system drivers	Crestron, AMX	—
Horizontal scan
Horizontal scan	15–140 kHz	15–140 kHz
Vertical scan
Vertical scan	24–120 Hz	24–120 Hz
Smart platform
Ethernet
Ethernet	Yes	Yes
Audio
Speaker power
Speaker power	15 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)	327 × 328 × 110 mm	274 × 216 × 114 mm
Weight
Weight	3,900 g	3,000 g
Orientations
Orientations	360°	Table, Ceiling, Rear, 360°
Ceiling mount
Ceiling mount	M4, 10 mm screws	M4, screws ≥ 10 mm
Ingress protection
Ingress protection	IP6X	IP6X
Environment & power
Operating temperature
Operating temperature	0–40°C	0–40°C
Operating humidity
Operating humidity	—	0–80%RH
Altitude
Altitude	3,048 m	2,500 m · high-altitude mode
Power draw
Power draw	Max 173 W · Eco 119 W	Max 173 W · Eco 119 W
Standby
Standby	Up to 0.5 W	Up to 0.5 W
Power supply
Power supply	External adapter	External adapter
Mains input
Mains input	—	100–240 V · 50/60 Hz
DC input
DC input	19.5 V	—
Fan noise
Fan noise	Normal 34 dB(A) · Eco 27 dB(A)	Max 34 dB(A) · Normal 32 dB(A)
Safety & support
Laser class
Laser class	Class 1	Class 1
Risk group
Risk group	RG2	RG2
FDA laser notice
FDA laser notice	Notice 57	—
Marks
Marks	FCC	FCC
Warranty
Warranty	3 yr (light source 5 yr or 12,000 h)	3 yr (light source 5 yr or 12,000 h)
User manual
User manual	https://region-resource.optoma.com/products/import/Documents/2b071968-2260-4f13-b1f5-cd54bcb1686f.pdf	https://region-resource.optoma.com/products/import/Documents/02387d20-4b12-4d04-97e4-be316b803cf2.pdf
In the box
In the box
In the box	Power cord, Remote, Remote batteries, Quick start guide	Power cord, Remote, Remote batteries, User manual
Remote
Remote	IR	IR

Optoma ZH430UST$2,289 · Amazon

Buy

Optoma ZH450ST$2,495 · Amazon

Buy