BenQ TK705STi vs ViewSonic X100-4K

BenQ TK705STi is lighter, broader on HDR and in stock. ViewSonic X100-4K is quieter.

Key differences
White light output
3,000 lm ANSI—
Throw ratio
0.8:11.2–1.44:1
Lowest input lag
5 msDerived—
HDR formats
HDR10, HDR10+, HLGHDR10
Fan noise
Normal 28 dB(A) · Eco 24 dB(A)Normal 23 dB(A) · Eco 20 dB(A)
MSRP
$1,999$1,817
Best price
$1,799—
Room fit
Distance to screen
1.8 m2.7–3.2 m
Picture
White light output
3,000 lm ANSI—
Claimed brightness (non-standard)
—2,900 lm (LED lumens)
Imaging technology
DLPDLP
Chip / panel diagonal
0.47 in0.47 in
Native aspect
16:9Derived16:9Derived
Addressable resolution
4K UHD (3840 × 2160)4K UHD (3840 × 2160)
Dynamic contrast
600,000:13,000,000:1
Dynamic contrast method
—Light-source dimming
Colour gamut
Rec. 709 98% coverageRec. 709 125% area
Colour bit depth (per channel)
10 bit10 bit
HDR formats
HDR10, HDR10+, HLGHDR10
Colour management (CMS)
—6-axis
Greyscale control points
11—
Picture mode memories
—2
Picture certifications
—ISF
3D
—Yes
3D glasses sync
—DLP-Link
Light source
Light source
LEDLED
Emitter
4-channel LED—
Light engine
—RGBB LED
Light-source life
20,000 h normal · 30,000 h ecoUp to 30,000 h
Light output control
Steps—
Optics
Throw ratio
0.8:11.2–1.44:1
Image size
30–300 in40–200 in
Projection offset
100%—
Zoom
DigitalOptical
Zoom ratio
—1.2×Derived
Focal length
8.5 mm12.62–15.13 mm
Aperture (f-number)
1.81.8–1.83
Focus
MotorisedMotorised
Autofocus
Yes—
Autofocus runs
When moved—
Vertical lens shift
—0–65%
Horizontal lens shift
—±25%
Motorised lens shift
—No
Vertical keystone
30°40°
Horizontal keystone
20°—
Auto keystone
Yes—
Auto setup
Fit to screen, Obstacle avoidance—
Motion & gaming
Frame interpolation (MEMC)
YesYes
Frame interpolation at 4K
—Yes
Max input refresh
—4K UHD: 60 Hz
Input lag
1080p: 60 Hz 5 ms · 4K UHD: 60 Hz 5 ms—
Gaming features
ALLM—
Inputs & control
HDMI inputs
2 × HDMI 2.1 (HDCP 2.2)4 × HDMI 2.0 (HDCP 2.2)
Other video inputs
USB-C (DisplayPort)VGA
Max input resolution
4K UHD4K UHD
Audio inputs
—3.5 mm
USB media playback
YesYes
Control ports
12 V triggerRS-232, Wired IR, 12 V trigger
Control-system drivers
—Crestron
Horizontal scan
15–102 kHz30–97 kHz
Vertical scan
23–120 Hz24–85 Hz
Smart platform
Wi-Fi
Wi-Fi 6Wi-Fi 4
Bluetooth
5.24.0
Ethernet
—Yes
Smart platform
Google TV—
OS version
11—
Storage
—16 GB
Netflix
Built in—
Casting
Chromecast built-in—
Audio
Speaker power
16 W40 W
Speakers
22
Layout
—Stereo
Tuned by
—Harman Kardon
Audio outputs
3.5 mm, HDMI eARC, Bluetooth3.5 mm, Optical, Bluetooth
HDMI audio return
eARCDerivedNoneDerived
Bluetooth speaker mode
Yes—
Physical & installation
Dimensions (W × D × H)
229 × 250 × 168 mm416 × 463 × 161 mm
Weight
3,800 g7,700 g
Orientations
Table, Ceiling, Rear, Limited tiltTable, Ceiling, Rear
Ceiling mount
M4M6, screws ≤ 8 mm
Tripod socket
Yes—
Dust filter
—None
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–90%RH0–90%RH
Altitude
2,000 m · high-altitude modeHigh-altitude mode
Power draw
Max 250 W200 W
Standby
Up to 0.5 WUp to 0.5 W
Networked standby
Up to 2 W—
Power supply
External adapter—
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
USB-C PD out
30 W—
Fan noise
Normal 28 dB(A) · Eco 24 dB(A)Normal 23 dB(A) · Eco 20 dB(A)
Safety & support
Eye-protection sensor
Yes—
Marks
—FCC
Warranty
3 yr3 yr (light source 1 yr)
User manual
https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/TK705STi/TK705STi_UM_EN_260316112414.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/Projector/X100-4K/X100-4K_UG_ENG.pdf
In the box
In the box
Power cord, Power adapter, Remote, User manualPower cord, Remote, Remote batteries, Quick start guide, Wi-Fi dongle
Remote
Voice—
BenQ TK705STi$1,799 · Amazon
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