BenQ X3100i vs Optoma UHZ55

BenQ X3100i is $700 cheaper and in stock. Optoma UHZ55 is quieter and lighter.

Key differences
White light output
3,300 lm ANSI—
Throw ratio
1.15–1.5:11.21–1.59:1
Lowest input lag
4.2 msDerived4.4 msDerived
Light source
LEDLaser (phosphor)
Fan noise
Normal 32 dB(A) · Eco 28 dB(A)Normal 29 dB(A) · Eco 27 dB(A)
MSRP
$2,399$2,499
Best price
$1,799—
Room fit
Distance to screen
2.5–3.3 m2.7–3.5 m
Picture
White light output
3,300 lm ANSI—
Claimed brightness (non-standard)
—3,000 lm
Brightness uniformity
—80%
Imaging technology
DLPDLP
Chip / panel diagonal
0.65 in0.47 in
Native resolution
1080p (1920 × 1080)1080p (1920 × 1080)
Native aspect
16:9Derived16:9Derived
Pixel shift
XPR 4-wayXPR 4-way
Addressable resolution
4K UHD (3840 × 2160)4K UHD (3840 × 2160)
Dynamic contrast
600,000:12,500,000:1
Dynamic contrast method
Light-source dimming—
Colour gamut
Rec. 709 95% coverage · DCI-P3 100% coverage—
Colour bit depth (per channel)
10 bit—
Gamma / EOTF presets
2.2, 2.4, 2.6—
Colour temperature presets
Native—
HDR formats
HDR10, HLGHDR10, HLG
Tone mapping
Adjustable—
Colour management (CMS)
6-axis6-axis
Greyscale control points
2—
3D
YesYes
3D formats
Frame packing, Side-by-side, Top-bottom, Frame sequentialFrame packing, Side-by-side, Top-bottom, Frame sequential
3D glasses sync
—DLP-Link
Light source
Light source
LEDLaser (phosphor)
Emitter
4-channel LED—
Light engine
—DuraCore
Light-source life
20,000 h normal · 30,000 h eco · 30,000 h dynamic30,000 h max
Warm-up time
15 s—
Cool-down time
15 s90 s
Optics
Throw ratio
1.15–1.5:11.21–1.59:1
Image size
60–200 in34.1–302 in
Projection offset
110%105%
Zoom
OpticalOptical
Zoom ratio
1.3×Derived1.31×Derived
Focal length
17.02–22.21 mm12.81–16.74 mm
Aperture (f-number)
1.8–2.251.94–2.23
Focus
ManualManual
Autofocus
NoNo
Vertical lens shift
±10%±10%
Motorised lens shift
No—
Vertical keystone
30°30°
Horizontal keystone
30°30°
Auto keystone
YesYes
Grid warp
—Yes
Interchangeable lens
—No
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 · 240 Hz 4.2 ms · 4K UHD: 60 Hz 16.7 ms1080p: 240 Hz 4.4 ms · 4K UHD: 60 Hz 16.9 ms
Inputs & control
HDMI inputs
HDMI 2.0 (HDCP 2.2) · HDMI 2.0 (eARC, HDCP 2.2)HDMI 2.0 (eARC, HDCP 2.2, game port) · 2 × HDMI 2.0 (HDCP 2.2)
Max input resolution
4K UHDDCI 4K
USB media playback
YesYes
Control ports
RS-232, 12 V triggerRS-232, 12 V trigger
Horizontal scan
15–135 kHz15.38–91.15 kHz
Vertical scan
23–240 Hz24–120 Hz
Smart platform
Wi-Fi
Wi-Fi 5Wi-Fi 5
Bluetooth
5.0—
Ethernet
—Yes
Smart platform
Android TVAndroid (uncertified)
OS version
11—
Google-certified
Yes—
Security updates until
31 Dec 2026—
Netflix
Via dongle—
Casting
Chromecast built-inNone
Smart home
—Alexa, Google Home
Audio
Speaker power
10 W10 W
Speakers
22
Layout
Stereo—
Tuned by
Bongiovi DPS—
Audio formats
Dolby Atmos—
Audio outputs
3.5 mm, Optical, HDMI eARC, Bluetooth3.5 mm, Optical, HDMI eARC
HDMI audio return
eARCDerivedeARCDerived
Physical & installation
Dimensions (W × D × H)
272 × 259 × 213 mm337 × 265 × 119 mm
Weight
6,800 g4,800 g
Orientations
Table, Ceiling, RearTable, Ceiling, Rear
Ceiling mount
M4, 20–25 mm screwsM4, screws ≥ 10 mm
Exhaust
Side—
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–90%RH10–85%RH
Altitude
3,000 m · high-altitude mode3,000 m · high-altitude mode
Power draw
Max 360 W · Normal 330 WMax 230 W · Eco 175 W
Standby
Up to 0.5 WUp to 0.5 WPreliminary
Power supply
Built inBuilt in
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
Fan noise
Normal 32 dB(A) · Eco 28 dB(A)Normal 29 dB(A) · Eco 27 dB(A)
Safety & support
Risk group
RG2RG2
FDA laser notice
—Notice 57
Warranty
3 yr1 yr (light source 5 yr or 12,000 h)
User manual
https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/X3100i/X3100i_UM_EN_230919170246.pdfhttps://region-resource.optoma.com/products/import/Documents/c60e8ce7-6032-45ec-a343-21f52fef801c.pdf
Firmware
1.10—
In the box
In the box
Power cord, Remote, Remote batteries, Quick start guide, Warranty card, Streaming donglePower cord, Remote, Remote batteries, Quick start guide, Wi-Fi dongle
Remote
IRBacklit
BenQ X3100i$1,799 · Amazon
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