Optoma ZH400ST vs Optoma ZH462

Optoma ZH400ST is lighter. Optoma ZH462 is $200 cheaper and better for gaming.

	Optoma ZH400STMSRP $2,599	Optoma ZH462MSRP $2,399

Key differences
Throw ratio
Throw ratio	0.5:1	1.13–1.47:1
Lowest input lag
Lowest input lag	17 msDerived	8.6 msDerived
HDR formats
HDR formats	HDR10, HLG	—
Fan noise
Fan noise	Max 36 dB(A)	Max 35 dB(A) · Eco 29 dB(A)
MSRP
MSRP	$2,599	$2,399
Room fit80″100″120″150″
Distance to screen
Distance to screen	1.1 m	2.5–3.3 m
Picture
Claimed brightness (non-standard)
Claimed brightness (non-standard)	4,000 lm	5,000 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	2,000,000:1	3,000,000:1
Colour bit depth (per channel)
Colour bit depth (per channel)	10 bit	10 bit
HDR formats
HDR formats	HDR10, HLG	—
Colour management (CMS)
Colour management (CMS)	—	6-axis
3D
3D	Yes	Yes
3D formats
3D formats	—	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)
Emitter
Emitter	Blue 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
Cool-down time
Cool-down time	—	90 s
Optics
Throw ratio
Throw ratio	0.5:1	1.13–1.47:1
Image size
Image size	36–292 in	30.72–320 in
Projection offset
Projection offset	116%	116%
Zoom
Zoom	None	Optical
Zoom ratio
Zoom ratio	—	1.3×Derived
Focal length
Focal length	7.51 mm	16.9–21.61 mm
Aperture (f-number)
Aperture (f-number)	2.8	2.43–2.78
Focus
Focus	—	Manual
Vertical lens shift
Vertical lens shift	None	None
Horizontal lens shift
Horizontal lens shift	None	None
Vertical keystone
Vertical keystone	30°	30°
Horizontal keystone
Horizontal keystone	30°	30°
Corner correction
Corner correction	—	4-corner
Motion & gaming
Max input refresh
Max input refresh	—	1080p: 120 Hz
Input lag
Input lag	1080p: 60 Hz 33.8 ms · 120 Hz 17 ms	1080p: 60 Hz 17 ms · 120 Hz 8.6 ms · 4K UHD: 60 Hz 17 ms
Inputs & control
HDMI inputs
HDMI inputs	2 × HDMI 2.0	2 × HDMI 2.0 (HDCP 2.2)
Control ports
Control ports	RS-232	RS-232
PJLink
PJLink	Class 1	—
Control-system drivers
Control-system drivers	Crestron, AMX	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
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 × 109 mm
Weight
Weight	2,998 g	3,402 g
Colours
Colours	—	White
Orientations
Orientations	Portrait, 360°	Table, Ceiling, Rear, Portrait, 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
Altitude
Altitude	2,500 m	2,500 m
Power draw
Power draw	Max 173 W · Eco 119 W	Max 205 W · Eco 128 W
Standby
Standby	Up to 0.5 WPreliminary	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 36 dB(A)	Max 35 dB(A) · Eco 29 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	Notice 57
Marks
Marks	—	FCC
Warranty
Warranty	3 yr (light source 5 yr or 12,000 h)	3 yr
User manual
User manual	https://region-resource.optoma.com/products/import/Documents/f141af2c-7d8e-4d73-952f-5a86d8e9c891.pdf	https://region-resource.optoma.com/products/import/Documents/7a6b0cdc-b771-4275-9e68-3d359a5c9b54.pdf
In the box
In the box
In the box	Power cord, Remote, Remote batteries, Quick start guide	Power cord, Power adapter, Remote, Remote batteries, User manual
Remote
Remote	—	IR