Optoma ZH340ST vs Optoma ZH450ST

Optoma ZH340ST is $216 cheaper. Optoma ZH450ST is in stock.

	Optoma ZH340STMSRP $2,279	Optoma ZH450ST$2,495 · Amazon Buy

Key differences
MSRP
MSRP	$2,279	$3,499
Best price
Best price	—	$2,495
Room fit80″100″120″150″
Distance to screen
Distance to screen	1.1 m	1.1 m
Picture
Claimed brightness (non-standard)
Claimed brightness (non-standard)	3,200 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	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	1,800,000:1	2,000,000:1
Colour bit depth (per channel)
Colour bit depth (per channel)	—	10 bit
HDR formats
HDR formats	HDR10, HLG	HDR10, HLG
3D
3D	Yes	Yes
3D formats
3D formats	—	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-source life
Light-source life	30,000 h	30,000 h
Light output control
Light output control	Steps	Steps
Optics
Throw ratio
Throw ratio	0.5:1	0.5:1
Image size
Image size	30–300 in	36–292 in
Projection offset
Projection offset	116%	116%
Zoom
Zoom	None	None
Focal length
Focal length	7.51 mm	7.51 mm
Aperture (f-number)
Aperture (f-number)	2.8	2.8
Focus
Focus	—	Manual
Autofocus
Autofocus	—	No
Vertical lens shift
Vertical lens shift	None	—
Vertical keystone
Vertical keystone	30°	30°
Horizontal keystone
Horizontal keystone	30°	30°
Auto keystone
Auto keystone	Yes	—
Corner correction
Corner correction	4-corner	4-corner
Motion & gaming
Max input refresh
Max input refresh	—	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	—	4K UHD
Control ports
Control ports	RS-232	RS-232
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
Audio
Speaker power
Speaker power	15 W	15 W
Speakers
Speakers	1	1
Layout
Layout	—	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)	274 × 216 × 114 mm	274 × 216 × 114 mm
Weight
Weight	2,998 g	3,000 g
Orientations
Orientations	Portrait, 360°	Table, Ceiling, Rear, 360°
Ceiling mount
Ceiling mount	M4, screws ≥ 10 mm	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	2,500 m	2,500 m · high-altitude mode
Power draw
Power draw	Max 139 W · Eco 98 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	100–240 V · 50/60 Hz
Fan noise
Fan noise	Max 34 dB(A) · Normal 32 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
Warranty
Warranty	1 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/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

Optoma ZH340STMSRP $2,279

Optoma ZH450ST$2,495 · Amazon

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