BenQ X3100i vs Optoma UHD35STx

Bold marks the better figure where both are stated to the same standard. β€œβ€”β€ means the manufacturer doesn't state it.

SpecBenQ X3100iOptoma UHD35STx
Display system
Imaging technologyDLPDLP
Native aspect ratio16:916:9
Native resolution3840 Γ— 21603840 Γ— 2160
Optics
Throw ratio1.15–1.5:10.5:1
Zoom typeβ€”None
Zoom ratio1.3Γ—β€”
Vertical lens shift40–60%β€”
Fixed offset110%116%
Focal length17.02–22.21 mm7.51 mm
F-number1.8–2.25β€”
Image size rangeβ€”36.43–301 in
Vertical keystone-30–30Β°-40–40Β°
Horizontal keystone-30–30Β°-40–40Β°
Corner / warp correctionβ€”4pt
Light source
Light source typeLEDLamp
Lamp wattageβ€”240 W
Light source lifeNormal: 20,000 h Β· Eco: 30,000 h Β· Smarteco: 30,000 hBright: 4,000 h Β· Dynamic: 15,000 h Β· Eco: 10,000 h
Brightness
ANSI lumens3,300 lmβ€”
Claimed brightness (non-standard)β€”3,600
Claimed brightness unitβ€”Unspecified
Brightness uniformity (centre-to-corner)β€”80%
Contrast & black level
Dynamic contrast600,000:11,000,000:1
Colour
Rec.709 gamut95%β€”
DCI-P3 gamut100%β€”
Bit depth / 'number of colours'30 bitβ€”
Calibration & picture control
ISF certifiedβ€”Yes
HDR
HDR formatsHDR10HDR10, HLG
Motion & gaming
Max refresh rate1920Γ—1080: 240 Hz Β· 3840Γ—2160: 60 Hz1920Γ—1080: 240 Hz Β· 3840Γ—2160: 60 Hz
Input lag (rated)1920Γ—1080 @ 60 Hz: 16.7 ms Β· 3840Γ—2160 @ 60 Hz: 16.7 ms Β· 1920Γ—1080 @ 240 Hz: 4.2 ms Β· 1920Γ—1080 @ 120 Hz: 8.3 ms3840Γ—2160 @ 60 Hz: 16.9 ms Β· 1920Γ—1080 @ 240 Hz: 4.2 ms
Audio
Speaker powerβ€”10 W
Speaker count21
Audio outputs3.5 mm, HDMI eARCβ€”
HDMI eARCYesβ€”
Inputs, control & connectivity
Max input signal3840 Γ— 2160β€”
HDMI port count22
HDMI ports (feature-level)HDMI-1: HDMI 2.0b, HDCP 2.2; HDMI-2: HDMI 2.0b, HDCP 2.2HDMI 1: HDMI 2.0; HDMI 2: HDMI 2.0
Horizontal scan frequency15–135 kHz31–135 kHz
Vertical scan frequency23–240 Hz24–120 Hz
RS-232YesYes
12 V triggerYesYes
Firmware / software
Smart OSAndroid TVβ€”
NetflixVia dongleβ€”
3D
3D supportβ€”Yes
3D formatsβ€”Frame packing
Acoustic noise
Fan noise (sound pressure)Normal: 32 dB(A) Β· Eco: 28 dB(A)Min: 24 dB(A) Β· Max: 28 dB(A)
Environment & power
Operating temperature0–40Β°C5–40Β°C
Altitude / high-altitude modeβ€”3,000 m
Rated voltage100–240 V100–240 V
Rated frequency50–60 Hz50–60 Hz
Power consumption (max)β€”320 W
Power consumption by modeTypical: 330 WMin: 220 W Β· Max: 320 W
Standby powerβ€”0.5 W
Physical & installation
Width272 mm315 mm
Depth259 mm270 mm
Height213 mm118 mm
Weight6.8 kg3.5 kg
Support & ownership
WarrantyπŸ‡ΊπŸ‡Έ US 3 yrβ€”
In the box
Remote typeβ€”Backlit