BenQ AK900ST vs Sharp XP-V731U

BenQ AK900ST is quieter, lighter and broader on HDR. Sharp XP-V731U is $1,404.13 cheaper, brighter and in stock.

Key differences
White light outputANSI
6,000 lm ANSI7,300 lm ISO (Normal power) · 7,300 lm ANSI
Native resolution
—WUXGA (1920 × 1200)
Throw ratio
0.81–0.89:10.32–5.93:1
Lowest input lag
4.8 msDerived—
HDR formats
HDR10, HLGHDR10
Fan noise
Normal 34 dB(A) · Eco 29 dB(A)Normal 40 dB(A) · Eco 31 dB(A)
MSRP
$5,999—
Best price
—$4,594.87
Room fit
Distance to screen
1.8–2.0 m0.69–13 m
Picture
White light outputANSI
6,000 lm ANSI7,300 lm ISO (Normal power) · 7,300 lm ANSI
Imaging technology
DLP3LCD
Chip / panel diagonal
0.47 in0.76 in
Native resolution
—WUXGA (1920 × 1200)
Native aspect
16:9Derived16:10Derived
Pixel shift
Yes (scheme not stated)—
Addressable resolution
4K UHD (3840 × 2160)—
Dynamic contrast
3,000,000:13,000,000:1
Colour gamut
Rec. 709 97% coverage—
Colour bit depth (per channel)
10 bit10 bit
Gamma / EOTF presets
2.2, 2.4, 2.6—
HDR formats
HDR10, HLGHDR10
Light source
Light source
Laser (phosphor)Laser (phosphor)
Emitter
—Blue laser + phosphor
Laser wavelengths
—B 455 nm
Light-source life
20,000 h normal · 30,000 h ecoUp to 20,000 h max
Life defined as
—50% brightness
Light output control
Continuous—
Constant brightness mode
—Yes
Cool-down time
About 15 s—
Optics
Throw ratio
0.81–0.89:10.32–5.93:1
Image size
95–300 in30–500 in
Zoom
OpticalOptical
Zoom ratio
1.1×Derived18.53×Derived
Focal length
8.6–9.4 mm—
Aperture (f-number)
1.83–1.86—
Focus
MotorisedMotorised
Autofocus
Yes—
Autofocus runs
On demand—
Vertical lens shift
±60%-10–50%
Horizontal lens shift
±23%±20%
Motorised lens shift
NoYes
Lens memory slots
5—
Vertical keystone
30°30°
Horizontal keystone
30°30°
Auto keystone
Yes—
Corner correction
4-corner—
Grid warp
YesYes
Auto setup
Fit to screen—
Interchangeable lens
—Yes
Motion & gaming
Max input refresh
1080p: 240 Hz · 4K UHD: 60 Hz—
Input lag
1080p: 60 Hz 18.6 ms · 120 Hz 9.7 ms · 240 Hz 4.8 ms · 4K UHD: 60 Hz 18.1 ms—
Gaming features
ALLM—
Inputs & control
HDMI inputs
2 × HDMI 2.1 (HDCP 2.3) · HDMI 2.1 (eARC, HDCP 2.3)2 × HDMI 2.0 (HDCP 2.2)
Other video inputs
—HDBaseT
Max input resolution
4K UHDDCI 4K
Control ports
RS-232RS-232, Wired IR
PJLink
—Class 2
Control-system drivers
—Crestron, AMX
Horizontal scan
15–270 kHz15–100 kHz
Vertical scan
23–240 Hz24–85 Hz
Smart platform
Ethernet
YesYes
Casting
Miracast—
Audio
Speaker power
20 W—
Speakers
10
Layout
Mono—
Audio outputs
3.5 mm3.5 mm
HDMI audio return
eARCDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
521 × 351 × 166 mm503 × 407 × 168 mm
Weight
10,200 g11,200 g
Colours
—Black, White
Orientations
—Table, Ceiling, Rear, Portrait, 360°
Ceiling mount
M4—
Dust filter
—Replaceable
Ingress protection
IP5X—
Environment & power
Operating temperature
0–40°C0–45°C
Operating humidity
10–90%RH20–80%RH
Altitude
3,000 m · high-altitude mode2,600 m · high-altitude mode
Power draw
348 WNormal 456 W · Eco 412 W
Standby
Up to 0.5 W0.16 W
Networked standby
Up to 2 W1.6 W
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Normal 34 dB(A) · Eco 29 dB(A)Normal 40 dB(A) · Eco 31 dB(A)
Safety & support
Laser class
Class 1Class 1
Risk group
RG2—
Marks
—CE, FCC, UL
Warranty
3 yr🇨🇦 CA 5 yr or 20,000 h · 🇺🇸 US 5 yr or 20,000 h · 🇪🇺 EU 3 yr (light source 3 yr or 10,000 h)
User manual
https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/AK900ST/AK900ST_UM_EN_260915154537.pdfhttps://productadmin.sharp.ca//./uploads/product_downloads/v801u-user-manual-en.pdf
In the box
In the box
Power cord, Remote, Quick start guide, User manualPower cord, Remote, Remote batteries, Quick start guide, Lens cap
Remote
—IR · backlit
Sharp XP-V731U$4,594.87 · Amazon
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