BenQ TH685i vs ViewSonic PX701-4K

BenQ TH685i is $76.99 cheaper and brighter. ViewSonic PX701-4K is better for gaming, quieter and in stock.

Key differences
White light outputANSI
3,500 lm ANSI3,200 lm ANSI
Throw ratio
1.13–1.46:11.5–1.65:1
Lowest input lag
8.3 msDerived4.2 msDerived
Fan noise
Normal 35 dB(A) · Eco 29 dB(A)Normal 32 dB(A) · Eco 28 dB(A)
MSRP
$899$979.99
Best price
—$975.99
Room fit
Distance to screen
2.5–3.2 m3.3–3.7 m
Picture
White light outputANSI
3,500 lm ANSI3,200 lm ANSI
Imaging technology
DLPDLP
Chip / panel diagonal
0.48 in0.47 in
Native resolution
1080p (1920 × 1080)1080p (1920 × 1080)
Native aspect
16:9Derived16:9Derived
Pixel shift
—XPR 4-way
Addressable resolution
—4K UHD (3840 × 2160)
Colour wheel segments
68
Colour wheel speed
2×—
Dynamic contrast
10,000:112,000:1
Dynamic contrast method
—Light-source dimming
Colour gamut
Rec. 709 95% coverage—
Colour bit depth (per channel)
10 bit10 bit
Gamma / EOTF presets
2.2, 2.4, 2.6—
Colour temperature presets
Native, Custom—
HDR formats
HDR10, HLGHDR10, HLG
Tone mapping
—Adjustable
Colour management (CMS)
6-axis—
Picture mode memories
22
3D
Yes—
3D formats
Frame packing, Side-by-side, Top-bottom, Frame sequential—
Light source
Light source
LampLamp
Lamp power
245 W203 W
Replacement lamp
5J.JL805.001RLC-126
Light-source life
4,000 h normal · 10,000 h eco · 15,000 h super eco · 8,000 h dynamic6,000 h normal · 20,000 h super eco
Warm-up time
About 30 s—
Optics
Throw ratio
1.13–1.46:11.5–1.65:1
Image size
30–300 in30–300 in
Projection offset
105%120%
Zoom
OpticalOptical
Zoom ratio
1.3×Derived1.1×Derived
Focal length
11.9–15.5 mm15.84–17.45 mm
Aperture (f-number)
1.94–2.072–2.05
Focus
ManualManual
Autofocus
—No
Vertical lens shift
±5%None
Horizontal lens shift
—None
Vertical keystone
40°40°
Horizontal keystone
—40°
Auto keystone
YesYes
Grid warp
—Yes
Motion & gaming
Frame interpolation (MEMC)
—No
Max input refresh
1080p: 240 Hz · 4K UHD: 60 Hz1080p: 240 Hz · 4K UHD: 60 Hz
Input lag
1080p: 60 Hz 16.7 ms · 120 Hz 8.3 ms · 4K UHD: 60 Hz 33.4 ms1080p: 240 Hz 4.2 ms
Inputs & control
HDMI inputs
HDMI 2.0 (ARC, HDCP 2.2) · HDMI 2.0 (HDCP 2.2, internal)2 × HDMI 2.0 (HDCP 2.2)
Other video inputs
VGA, ComponentNone
Max input resolution
4K UHD4K UHD
Audio inputs
3.5 mm—
Control ports
RS-232RS-232
Horizontal scan
15–102 kHz15–135 kHz
Vertical scan
23–120 Hz23–240 Hz
Smart platform
Wi-Fi
Wi-Fi 5None
Bluetooth
4.2—
Ethernet
—No
Smart platform
Android TVNone
OS version
9—
Google-certified
Yes—
Chipset
Amlogic S905Y2—
RAM
2 GB—
Storage
16 GB—
Security updates until
31 Dec 2024—
Netflix
NoNo
Casting
Chromecast built-in—
Audio
Speaker power
5 W10 W
Speakers
11
Layout
MonoMono
Audio outputs
3.5 mm, HDMI ARC3.5 mm
HDMI audio return
ARCDerivedNoneDerived
Bluetooth speaker mode
—No
Physical & installation
Dimensions (W × D × H)
312 × 225 × 110 mm312 × 222 × 108 mm
Weight
2,790 g2,800 g
Colours
White—
Orientations
Table, Ceiling, RearTable, Ceiling, Rear
Ceiling mount
M4M4, screws ≤ 8 mm
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–90%RH0–90%RH
Altitude
3,000 m · high-altitude mode3,000 m · high-altitude mode
Power draw
Max 340 W · Normal 297 W · Eco 206 W265 W
Standby
Up to 0.5 WUp to 0.5 W
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Normal 35 dB(A) · Eco 29 dB(A)Normal 32 dB(A) · Eco 28 dB(A)
Safety & support
Risk group
RG2RG2
Marks
—CE, FCC
Warranty
3 yr (light source 1 yr or 2,000 h)3 yr (light source 1 yr)
User manual
https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/TH685i/TH685i_UM_EN_210913182301.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/Projector/PX701-4K_PX728-4K_PX748-4K/PX701-4K_PX728-4K_PX748-4K_UG_ENG.pdf
Spare parts
Lamp 5J.JL805.001—
In the box
In the box
Power cord, Remote, Remote batteries, Quick start guide, Warranty card, VGA cable, Streaming donglePower cord, Remote, Quick start guide
Remote
IR · voiceIR
ViewSonic PX701-4K$975.99 · Amazon
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