Optoma ZH420 vs Optoma ZW350ST

Optoma ZH420 is sharper, better for gaming and quieter. Optoma ZW350ST is $554.01 cheaper.

	Optoma ZH420$1,369 · Amazon Buy	Optoma ZW350ST$814.99 · Amazon Buy

Key differences
Native resolution
Native resolution	1080p (1920 × 1080)	WXGA (1280 × 800)
Throw ratio
Throw ratio	1.12–1.47:1	0.52:1
Lowest input lag
Lowest input lag	8.6 msDerived	17 msDerived
HDR formats
HDR formats	HDR10, HLG	—
Fan noise
Fan noise	Max 31 dB(A) · Normal 29 dB(A)	Normal 34 dB(A) · Eco 27 dB(A)
MSRP
MSRP	$1,799	$999
Best price
Best price	$1,369	$814.99
Room fit80″100″120″150″
Distance to screen
Distance to screen	2.5–3.3 m	1.1 m
Picture
Claimed brightness (non-standard)
Claimed brightness (non-standard)	4,300 lm	3,600 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)	WXGA (1280 × 800)
Native aspect
Native aspect	16:9Derived	16:10Derived
Dynamic contrast
Dynamic contrast	2,000,000:1	2,000,000:1
Colour bit depth (per channel)
Colour bit depth (per channel)	—	10 bit
Gamma / EOTF presets
Gamma / EOTF presets	2.2, 2.4	—
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, 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	Up to 30,000 h max	30,000 h
Light output control
Light output control	Steps	Steps
Cool-down time
Cool-down time	90 s	90 s
Optics
Throw ratio
Throw ratio	1.12–1.47:1	0.52:1
Image size
Image size	31–322 in	30–300 in
Projection offset
Projection offset	116%	115%
Zoom
Zoom	Optical	None
Zoom ratio
Zoom ratio	1.31×Derived	—
Focal length
Focal length	16.9–21.61 mm	7.51 mm
Aperture (f-number)
Aperture (f-number)	2.43–2.78	2.8
Focus
Focus	Manual	Manual
Autofocus
Autofocus	No	No
Vertical lens shift
Vertical lens shift	None	—
Vertical keystone
Vertical keystone	30°	15°
Horizontal keystone
Horizontal keystone	30°	—
Auto keystone
Auto keystone	Yes	—
Corner correction
Corner correction	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
Inputs & control
HDMI inputs
HDMI inputs	HDMI 2.0 · HDMI 2.0 (HDCP 2.2)	2 × HDMI 1.4
Max input resolution
Max input resolution	DCI 4K	—
Control ports
Control ports	RS-232	RS-232
Control-system drivers
Control-system drivers	Crestron, AMX	Crestron
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
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	3,000 g	3,000 g
Colours
Colours	—	White
Orientations
Orientations	Table, Ceiling, Rear, Portrait, 360°	Table, Ceiling, Rear, 360°
Ceiling mount
Ceiling mount	M4, screws ≥ 10 mm	—
Ingress protection
Ingress protection	IP6X	IP6X
Sealed optical engine
Sealed optical engine	—	Yes
Environment & power
Operating temperature
Operating temperature	0–40°C	0–40°C
Altitude
Altitude	2,500 m · high-altitude mode	2,500 m · high-altitude mode
Power draw
Power draw	Max 173 W · Eco 119 W	Max 139 W · Normal 140 W · Eco 100 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
DC input
DC input	19 V	—
Fan noise
Fan noise	Max 31 dB(A) · Normal 29 dB(A)	Normal 34 dB(A) · Eco 27 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)	1 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	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 ZH420$1,369 · Amazon

Buy

Optoma ZW350ST$814.99 · Amazon

Buy