BenQ AH500ST vs Optoma ZH551

BenQ AH500ST is broader on HDR. Optoma ZH551 is $499.94 cheaper, better for gaming and quieter.

BenQ AH500ST$1,998.94 · Amazon
Buy
Optoma ZH551$1,499 · Amazon
Buy
Key differences
White light output
4,000 lm ANSI5,600 lm ISO
Throw ratio
0.5:11.4–2.24:1
Lowest input lag
16.7 msDerived8.6 msDerived
HDR formats
HDR10, HLGHLG
Fan noise
Normal 35 dB(A) · Eco 32 dB(A)Normal 33 dB(A) · Eco 28 dB(A)
MSRP
$1,899—
Best price
$1,998.94$1,499
Room fit
Distance to screen
1.1 m3.1–5.0 m
Picture
White light output
4,000 lm ANSI5,600 lm ISO
Brightness uniformity
—75%
Imaging technology
DLPDLP
Chip / panel diagonal
—0.65 in
Native resolution
1080p (1920 × 1080)1080p (1920 × 1080)
Native aspect
16:9Derived16:9Derived
Dynamic contrast
3,000,000:13,000,000:1
Colour gamut
Rec. 709 83% coverage—
Colour bit depth (per channel)
10 bit—
Gamma / EOTF presets
2.2, 2.4, 2.6—
HDR formats
HDR10, HLGHLG
Colour management (CMS)
—6-axis
3D
YesYes
3D formats
Frame packing, Side-by-side, Top-bottom, Frame sequentialFrame packing, Side-by-side, Top-bottom, Frame sequential
3D glasses sync
—DLP-Link
Light source
Light source
Laser (phosphor)Laser (phosphor)
Emitter
Blue laser + phosphor—
Light-source life
20,000 h normal · 38,000 h eco30,000 h eco
Cool-down time
—90 s
Optics
Throw ratio
0.5:11.4–2.24:1
Image size
—28–145 in
Projection offset
112%103%
Zoom
NoneOptical
Zoom ratio
—1.6×Derived
Focal length
7.46 mm20.91–32.62 mm
Aperture (f-number)
2.82.5–3.26
Focus
MotorisedManual
Autofocus
YesNo
Autofocus runs
On demand—
Vertical lens shift
None0–15%
Horizontal lens shift
None—
Motorised lens shift
—No
Vertical keystone
30°30°
Horizontal keystone
30°30°
Corner correction
—4-corner
Motion & gaming
Max input refresh
1080p: 120 Hz—
Input lag
1080p: 60 Hz 33.4 ms · 120 Hz 16.7 ms1080p: 60 Hz 17 ms · 120 Hz 8.6 ms · 4K UHD: 60 Hz 16.9 ms
Inputs & control
HDMI inputs
2 × HDMI 2.0 (HDCP 2.2)2 × HDMI 2.0
Other video inputs
—VGA
Max input resolution
4K UHD4K UHD
Control ports
RS-232RS-232, 12 V trigger
PJLink
—Class 1
Control-system drivers
—Crestron
Horizontal scan
15–102 kHz15.38–135 kHz
Vertical scan
23–120 Hz23.97–120 Hz
Smart platform
Ethernet
YesYes
Casting
—Miracast
Audio
Speaker power
10 W15 W
Speakers
1—
Layout
—Mono
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
320 × 255 × 131 mm274 × 216 × 114 mm
Weight
5,100 g2,900 g
Orientations
Table, Ceiling, RearPortrait, 360°
Ceiling mount
M4, 8 mm screws—
Ingress protection
IP5X (light engine)IP6X (light engine)
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–90%RH—
Altitude
3,000 m · high-altitude mode3,048 m · high-altitude mode
Power draw
Max 300 W · Normal 250 WNormal 230 W · Eco 200 W
Standby
Up to 0.5 WUp to 0.5 W
Networked standby
Up to 2 W—
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Normal 35 dB(A) · Eco 32 dB(A)Normal 33 dB(A) · Eco 28 dB(A)
Safety & support
Laser class
—Class 1
Risk group
RG2RG2
Hazard distance
—1 m
Marks
—FCC
Warranty
3 yr3 yr (light source 5 yr or 12,000 h)
User manual
https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/AH500ST/AH500ST_UM_EN_241231102241.pdfhttps://region-resource.optoma.com/products/documents/sj3ba9jjcgNo3jqZNW4eSSqXsUgO3XnIzHgAsT4w.pdf
In the box
In the box
Power cord, Remote, Remote batteries, Quick start guide, Warranty card, Lens capPower cord, Remote, Remote batteries, Quick start guide, Wi-Fi dongle
Remote
IRIR
BenQ AH500ST$1,998.94 · Amazon
Buy
Optoma ZH551$1,499 · Amazon
Buy