ProjectorDB

BenQ AH700ST vs Optoma ZK551

BenQ AH700ST is quieter and lighter. Optoma ZK551 is $400 cheaper and better for gaming.

BenQ AH700ST$2,299 · Amazon
Buy
Optoma ZK551$1,899 · Amazon
Buy
Key differences
White light output
4,000 lm ANSI5,100 lm ISO
Native resolution
1080p (1920 × 1080)—
Throw ratio
0.69–0.83:11.4–2.24:1
Lowest input lag
16.7 msDerived4.4 msDerived
HDR formats
HDR10, HLG—
Fan noise
Normal 32 dB(A) · Eco 29 dB(A)Normal 34 dB(A) · Eco 28 dB(A)
MSRP
$2,299—
Best price
$2,299$1,899
Room fit
Distance to screen
1.5–1.8 m3.1–5.0 m
Picture
White light output
4,000 lm ANSI5,100 lm ISO
Brightness uniformity
—75%
Imaging technology
DLPDLP
Chip / panel diagonal
0.65 in—
Native resolution
1080p (1920 × 1080)—
Native aspect
16:9Derived16:9Derived
Pixel shift
—XPR 4-way
Addressable resolution
—4K UHD (3840 × 2160)
Dynamic contrast
3,000,000:13,000,000:1
Colour gamut
Rec. 709 95% coverage—
Colour bit depth (per channel)
10 bit—
Gamma / EOTF presets
2.2, 2.4, 2.62.2, 2.4
HDR formats
HDR10, HLG—
Colour management (CMS)
6-axis6-axis
Picture mode memories
2—
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 engine
—DuraCore
Light-source life
20,000 h normal · 30,000 h eco30,000 h eco
Constant brightness mode
—Yes
Warm-up time
10 s—
Cool-down time
—90 s
Optics
Throw ratio
0.69–0.83:11.4–2.24:1
Image size
60–120 in20–300 in
Projection offset
103%102%
Zoom
OpticalOptical
Zoom ratio
1.2×Derived1.6×Derived
Focal length
10.2–12.24 mm20.91–32.62 mm
Aperture (f-number)
2.53–2.732.5–3.26
Focus
MotorisedManual
Autofocus
YesNo
Vertical lens shift
None0–15.1%
Horizontal lens shift
None—
Vertical keystone
30°30°
Horizontal keystone
30°30°
Corner correction
4-corner—
Grid warp
—Yes
Auto setup
Fit to screen—
Interchangeable lens
—No
Motion & gaming
Max input refresh
1080p: 120 Hz1080p: 240 Hz · 4K UHD: 60 Hz
Input lag
1080p: 60 Hz 33.4 ms · 120 Hz 16.7 ms1080p: 60 Hz 17 ms · 120 Hz 8.6 ms · 240 Hz 4.4 ms · 4K UHD: 60 Hz 17 ms
Inputs & control
HDMI inputs
HDMI 2.0 (HDCP 2.2) · HDMI 2.0 (eARC, HDCP 2.2)2 × HDMI 2.0 (HDCP 2.3)
Other video inputs
USB-C (DisplayPort)—
Max input resolution
4K UHD4K UHD
Control ports
RS-232RS-232, 12 V trigger
PJLink
—Class 1
Control-system drivers
—Crestron
Horizontal scan
15–135 kHz15–150 kHz
Vertical scan
23–120 Hz24–240 Hz
Smart platform
Ethernet
—Yes
Casting
—Miracast
Audio
Speaker power
10 W15 W
Speakers
11
Layout
MonoMono
Audio outputs
3.5 mm, HDMI eARC3.5 mm
HDMI audio return
eARCDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
304 × 235 × 112 mm274 × 216 × 114 mm
Weight
3,300 g3,500 g
Orientations
Table, Ceiling, RearTable, Ceiling, Rear, Portrait, 360°
Ceiling mount
M4, 20–25 mm screwsM4, 10 mm screws
Dust filter
None—
Ingress protection
IP5X (light engine)IP6XPreliminary
Sealed optical engine
Yes—
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 320 W · Normal 192 W · Eco 136 WMax 245 W · Normal 245 W · Eco 170 W
Standby
Up to 0.5 WUp to 0.5 W
Power supply
—External adapterPreliminary
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Normal 32 dB(A) · Eco 29 dB(A)Normal 34 dB(A) · Eco 28 dB(A)
Safety & support
Laser class
Class 1Class 1
Risk group
RG2RG2
Marks
—FCC
Warranty
3 yr—
User manual
https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/AH700ST/AH700ST_UM_EN_241202095702.pdfhttps://region-resource.optoma.com/products/documents/K5mU9Peeq4zSbamp55pR5XFag9nk3bx7MMN5DCWz.pdf
In the box
In the box
Power cord, Remote, Remote batteries, Quick start guide, Warranty cardPower cord, Remote, Remote batteries, Quick start guide
Remote
IRIR
BenQ AH700ST$2,299 · Amazon
Buy
Optoma ZK551$1,899 · Amazon
Buy