Optoma LH352BST vs ViewSonic PX706HD

Optoma LH352BST is better for gaming. ViewSonic PX706HD is lighter.

Key differences
White light output
3,300 lm ISO3,000 lm ANSI
Lowest input lag
8.4 msDerived16 msDerived
Light source
LEDLamp
Fan noise
Normal 31 dB(A) · Eco 29 dB(A)—
MSRP
—$799
Room fit
Distance to screen
1.5–1.8 m1.5–1.8 m
Picture
White light output
3,300 lm ISO3,000 lm ANSI
Brightness uniformity
85%—
Imaging technology
DLPDLP
Chip / panel diagonal
—0.65 in
Native resolution
1080p (1920 × 1080)1080p (1920 × 1080)
Native aspect
16:9Derived16:9Derived
Dynamic contrast
2,000,000:122,000:1
Colour bit depth (per channel)
—10 bit
3D
YesYes
3D formats
—Side-by-side, Top-bottom, Frame sequential
Light source
Light source
LEDLamp
Lamp power
—240 W
Replacement lamp
—RLC-118
Light-source life
30,000 h eco4,000 h normal · 15,000 h dynamic
Optics
Throw ratio
0.69–0.83:10.69–0.83:1
Image size
30–300 in60–120 in
Projection offset
103%—
Zoom
OpticalOptical
Zoom ratio
1.2×Derived1.2×Derived
Focal length
10.2–12.24 mm—
Aperture (f-number)
2.6–2.78—
Vertical lens shift
—None
Vertical keystone
30°20°
Horizontal keystone
30°—
Auto keystone
—Yes
Motion & gaming
Max input refresh
1080p: 120 Hz · 4K UHD: 60 Hz—
Input lag
1080p: 60 Hz 16.7 ms · 120 Hz 8.4 ms · 4K UHD: 60 Hz 33.7 ms1080p: 60 Hz 16 ms
Inputs & control
HDMI inputs
2 × HDMI 2.02 × HDMI 1.4
Other video inputs
—VGA, Component, Composite
Max input resolution
—1080p
Audio inputs
—3.5 mm
Control ports
RS-232RS-232
Horizontal scan
15–135 kHz15–102 kHz
Vertical scan
24–120 Hz23–120 Hz
Audio
Speaker power
10 W5 W
Speakers
11
Audio outputs
3.5 mm3.5 mm
HDMI audio return
NoneDerivedNoneDerived
Physical & installation
Dimensions (W × D × H)
307 × 228 × 126 mm293 × 220 × 115 mm
Weight
3,175 g2,700 g
Orientations
Table, Ceiling, Rear, 360°—
Ceiling mount
—M4, screws ≤ 8 mm
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
—10–90%RH
Altitude
3,048 m3,000 m · high-altitude mode
Power draw
Max 226 W · Eco 124 WMax 295 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 31 dB(A) · Eco 29 dB(A)—
Safety & support
Risk group
—RG2
Marks
—CE, FCC
Warranty
1 yr (light source 5 yr or 12,000 h)3 yr (light source 1 yr)
User manual
https://region-resource.optoma.com/products/documents/zxu5ywIf5l6KP4tqTxtOSlYPnDy1LAh9a2E2o2E4.pdfhttps://www.viewsonicglobal.com/public/products_download/user_guide/Projector/PX706HD/PX706HD_UG_ENG.pdf
Spare parts
—Lamp RLC-118
In the box
In the box
Power cord, Remote, Remote batteries, Quick start guidePower cord, Remote, Quick start guide, USB cable
Remote
—IR