BenQ TH671ST vs ViewSonic X1

BenQ TH671ST is $150 cheaper, lighter and in stock.

	BenQ TH671ST$849 · Amazon Buy	ViewSonic X1MSRP $999

Key differences
White light output
White light output	3,000 lm ANSI	—
Throw ratio
Throw ratio	0.69–0.83:1	1.15–1.5:1
Lowest input lag
Lowest input lag	16.7 msDerived	—
HDR formats
HDR formats	—	HDR10
Light source
Light source	Lamp	LED
Fan noise
Fan noise	Normal 33 dB(A) · Eco 29 dB(A)	—
MSRP
MSRP	$749	$999
Best price
Best price	$849	—
Room fit80″100″120″150″
Distance to screen
Distance to screen	1.5–1.8 m	2.5–3.3 m
Picture
White light output
White light output	3,000 lm ANSI	—
Claimed brightness (non-standard)
Claimed brightness (non-standard)	—	3,100 lm (LED lumens)
Imaging technology
Imaging technology	DLP	DLP
Chip / panel diagonal
Chip / panel diagonal	0.65 in	0.65 in
Native resolution
Native resolution	1080p (1920 × 1080)	1080p (1920 × 1080)
Native aspect
Native aspect	16:9Derived	16:9Derived
Colour wheel segments
Colour wheel segments	6	—
Colour wheel speed
Colour wheel speed	2×	—
Dynamic contrast
Dynamic contrast	10,000:1	3,000,000:1
Colour gamut
Colour gamut	Rec. 709 92% coverage	Rec. 709 125%
Colour bit depth (per channel)
Colour bit depth (per channel)	10 bit	10 bit
Gamma / EOTF presets
Gamma / EOTF presets	2.2, 2.4, 2.6	—
HDR formats
HDR formats	—	HDR10
Tone mapping
Tone mapping	—	Adjustable
Colour management (CMS)
Colour management (CMS)	6-axis	—
Picture mode memories
Picture mode memories	2	2
3D
3D	Yes	Yes
3D formats
3D formats	Frame packing, Side-by-side, Top-bottom, Frame sequential	Frame packing, Side-by-side, Top-bottom, Frame sequential
3D glasses sync
3D glasses sync	DLP-Link	—
Light source
Light source
Light source	Lamp	LED
Lamp power
Lamp power	240 W	—
Light-source life
Light-source life	4,000 h normal · 10,000 h eco · 15,000 h super eco · 10,000 h dynamic	30,000 h
Warm-up time
Warm-up time	30 s	—
Cool-down time
Cool-down time	90 s	—
Optics
Throw ratio
Throw ratio	0.69–0.83:1	1.15–1.5:1
Image size
Image size	60–120 in	60–150 in
Projection offset
Projection offset	103%	—
Zoom
Zoom	Optical	Optical
Zoom ratio
Zoom ratio	1.2×Derived	1.3×Derived
Focal length
Focal length	10.2–12.24 mm	—
Aperture (f-number)
Aperture (f-number)	2.6–2.78	2.59–2.87
Focus
Focus	Manual	Manual
Autofocus
Autofocus	No	No
Vertical lens shift
Vertical lens shift	—	0–10%
Vertical keystone
Vertical keystone	40°	40°
Horizontal keystone
Horizontal keystone	—	40°
Auto keystone
Auto keystone	No	Yes
Motion & gaming
Max input refresh
Max input refresh	1080p: 60 Hz	4K UHD: 60 Hz
Input lag
Input lag	1080p: 60 Hz 16.7 ms	—
Inputs & control
HDMI inputs
HDMI inputs	HDMI 1.4 · HDMI 1.4 (HDCP 1.4)	2 × HDMI 2.0 (HDCP 2.2)
Other video inputs
Other video inputs	VGA	USB-C (DisplayPort)
Max input resolution
Max input resolution	WUXGA	4K UHD
Audio inputs
Audio inputs	3.5 mm	—
USB media playback
USB media playback	No	Yes
Control ports
Control ports	RS-232	RS-232
Horizontal scan
Horizontal scan	15–102 kHz	15–102 kHz
Vertical scan
Vertical scan	23–120 Hz	23–120 Hz
Smart platform
Wi-Fi
Wi-Fi	—	Wi-Fi 4
Bluetooth
Bluetooth	—	4.2
Netflix
Netflix	—	Via dongle
Audio
Speaker power
Speaker power	5 W	12 W
Speakers
Speakers	1	2
Layout
Layout	Mono	Stereo
Tuned by
Tuned by	Waves MaxxAudio	—
Audio outputs
Audio outputs	3.5 mm	3.5 mm, Bluetooth
HDMI audio return
HDMI audio return	NoneDerived	NoneDerived
Bluetooth speaker mode
Bluetooth speaker mode	—	Yes
Physical & installation
Dimensions (W × D × H)
Dimensions (W × D × H)	296 × 224 × 120 mm	355 × 244 × 121 mm
Weight
Weight	2,700 g	3,600 g
Orientations
Orientations	Table, Ceiling, Rear	Table, Ceiling, Rear
Ceiling mount
Ceiling mount	M4, 20–25 mm screws	M4, screws ≤ 8 mm
Environment & power
Operating temperature
Operating temperature	0–40°C	0–40°C
Operating humidity
Operating humidity	10–90%RH	0–90%RH
Altitude
Altitude	3,000 m · high-altitude mode	3,000 m · high-altitude mode
Power draw
Power draw	Max 355 W · Normal 320 W · Eco 240 W	218 W
Standby
Standby	Up to 0.5 W	Up to 0.5 W
Mains input
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Fan noise
Fan noise	Normal 33 dB(A) · Eco 29 dB(A)	—
Safety & support
Marks
Marks	CE	CE, FCC
Warranty
Warranty	3 yr (light source 1 yr or 2,000 h)	3 yr
User manual
User manual	https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/TH671ST/TH671ST_UM_EN_230426092526.pdf	https://www.viewsonicglobal.com/public/products_download/user_guide/projector/X1_X2/X1_X2_UG_ENG.pdf
In the box
In the box
In the box	Power cord, Remote, Quick start guide, User manual, VGA cable, Lens cap	Power cord, Remote, Quick start guide
Remote
Remote	IR	—

BenQ TH671ST$849 · Amazon

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ViewSonic X1MSRP $999