ProjectorDB

BenQ AK700ST vs ViewSonic LSD400W

BenQ AK700ST
BenQ AK700ST
MSRP $2,899
ViewSonic LSD400WViewSonic LSD400W
$699.99
Key differences
Native resolution—WXGA (1280 × 800)
Throw ratio0.69–0.83:11.54–1.72:1
Lowest input lag8.4 msDerived—
HDR formatsHDR10, HLG—
Light sourceHybrid laser + LEDLaser (phosphor)
Fan noiseNormal 32 dB(A) · Eco 29 dB(A)Normal 30 dB(A) · Eco 25 dB(A)
PriceMSRP $2,899$699.99
Room fit
Distance to screen1.5–1.8 m3.3–3.7 m
Brightness
Rated brightness4,000 lmDerived4,000 lmDerived
White light outputANSI4,000 lm ANSI4,000 lm ANSI
Claimed brightness (non-standard)—4,800 lm
Display system
Imaging technologyDLPDLP
Chip / panel diagonal0.65 in0.65 in
On-screen resolution4K UHD (3840 × 2160)DerivedWXGA (1280 × 800)Derived
Native resolution—WXGA (1280 × 800)
Native aspect16:9Derived16:10Derived
Addressable resolution4K UHD (3840 × 2160)—
Contrast
Dynamic contrast3,000,000:13,000,000:1
Colour
Colour gamutRec. 709 95% coverage—
Colour bit depth (per channel)10 bit10 bit
Gamma / EOTF presets2.2, 2.4, 2.6—
HDR
HDR formatsHDR10, HLG—
Calibration
Colour management (CMS)6-axis6-axis
Picture mode memories2—
3D
3DYesYes
3D formats+ Frame packing, + Side-by-side, + Top-bottom, Frame sequentialFrame sequential
3D glasses sync—DLP-Link
Light source
Light sourceHybrid laser + LEDLaser (phosphor)
EmitterLaser + LEDBlue laser + phosphor
Light-source life20,000 h normal · 30,000 h eco20,000 h normal · 30,000 h eco
Warm-up time10 s0 s
Cool-down time—0 s
Optics
Throw ratio0.69–0.83:11.54–1.72:1
Image size60–120 in30–300 in
Projection offset103%124%
ZoomOpticalOptical
Zoom ratio1.2×Derived1.11×Derived
Focal length10.2–12.24 mm21.85–24 mm
Aperture (f-number)2.53–2.732.4–2.53
FocusMotorisedManual
AutofocusYesNo
Vertical lens shiftNone—
Horizontal lens shiftNone—
Vertical keystone30°30°
Horizontal keystone30°30°
Auto keystoneYes—
Corner correction4-corner4-corner
Grid warpYes—
Auto setupFit to screen—
Motion & gaming
Max input refresh1080p: 240 Hz · 4K UHD: 60 Hz720p: 120 Hz
Max refresh at 1080p240 HzDerived—
Max refresh at 4K60 HzDerived—
Input lag1080p: 60 Hz 33.4 ms · 120 Hz 16.7 ms · 240 Hz 8.4 ms · 4K UHD: 60 Hz 33.4 ms—
Lowest input lag8.4 msDerived—
Input lag at 4K 60 Hz33.4 msDerived—
Inputs & control
HDMI inputsHDMI 2.0 (HDCP 2.2) · HDMI 2.0 (eARC, HDCP 2.2)2 × HDMI 1.4 (HDCP 1.4)
HDMI inputs (count)2Derived2Derived
Newest HDMI versionHDMI 2.0DerivedHDMI 1.4Derived
Other video inputsUSB-C (DisplayPort)—
Max input resolution4K UHDWUXGA
Control portsRS-232RS-232, + Wired IR
Horizontal scan15–135 kHz15–102 kHz
Vertical scan23–240 Hz24–120 Hz
Smart platform
Ethernet—No
Audio
Speaker power10 W3 W
Speakers11
LayoutMonoMono
Audio outputs3.5 mm, + HDMI eARC3.5 mm
HDMI audio returneARCDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)304 × 235 × 112 mm286 × 216 × 129 mm
Weight3,400 g3,100 g
Orientations+ Table, Ceiling, + RearCeiling, + Portrait, + 360°
Ceiling mountM4, 8 mm screws—
Dust filterNoneNone
Ingress protectionIP5X (light engine)IP6X
Sealed optical engineYesYes
Environment & power
Operating temperature0–40°C0–40°C
Operating humidity10–90%RH10–80%RH
Altitude3,000 m · high-altitude mode3,658 m · high-altitude mode
Power drawMax 320 W · Normal 192 W · Eco 136 W114 W
StandbyUp to 0.5 WUp to 0.5 W
Power supply—External adapter
Mains input100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Noise
Fan noiseNormal 32 dB(A) · Eco 29 dB(A)Normal 30 dB(A) · Eco 25 dB(A)
Safety & compliance
Laser classClass 1Class 1
Risk groupRG2RG2
Hazard distance—1 m
Marks—CE, FCC
Support & ownership
Warranty3 yr3 yr
User manualhttps://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/AK700ST/AK700ST_UM_EN_250102091624.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/projector/LSD400W/LSD400W_UG_ENG.pdf
In the box
In the boxPower cord, Remote, Remote batteries, Quick start guide, + Warranty cardPower cord, + Power adapter, Remote, Remote batteries, Quick start guide
RemoteIRIR