ProjectorDB

Nebula X1 Pro vs Optoma HL31LV

Nebula X1 ProNebula X1 Pro
$4,299
Optoma HL31LVOptoma HL31LV
Key differences
White light output3,500 lm ANSI3,500 lm ISO
Native contrast (on/off)5,000:1—
Throw ratio0.9–1.5:11.49–1.64:1
Lowest input lag18.3 msDerived8.4 msDerived
HDR formats+ HDR10, + HDR10+, HLG, + Dolby VisionHLG
Light sourceRGB triple laserLED
Fan noise26 dB(A)Max 35 dB(A) · Eco 29 dB(A)
Price$4,299—
Room fit
Distance to screen2.0–3.3 m3.3–3.6 m
Brightness
Rated brightness3,500 lmDerived3,500 lmDerived
White light output3,500 lm ANSI3,500 lm ISO
Brightness uniformity—85%
Display system
Imaging technologyDLPDLP
Chip / panel diagonal0.47 in—
On-screen resolution4K UHD (3840 × 2160)Derived1080p (1920 × 1080)Derived
Native resolution1080p (1920 × 1080)1080p (1920 × 1080)
Native aspect16:9Derived16:9Derived
Pixel shiftXPR 4-way—
Addressable resolution4K UHD (3840 × 2160)—
Contrast
Native contrast (on/off)5,000:1—
Dynamic contrast56,000:1300,000:1
Dynamic contrast methodDynamic iris—
Colour
Colour gamutBT.2020 110% area—
Colour bit depth (per channel)10 bit10 bit
Gamma / EOTF presets—2.2, 2.4
HDR
HDR formats+ HDR10, + HDR10+, HLG, + Dolby VisionHLG
Calibration
Colour management (CMS)—6-axis
Picture certificationsISFISF
3D
3DYesYes
3D formatsFrame packing, Side-by-side, Top-bottomFrame packing, Side-by-side, Top-bottom, + Frame sequential
3D glasses syncDLP-LinkDLP-Link
Light source
Light sourceRGB triple laserLED
EmitterRGB triple laser—
Light-source life25,000 hUp to 30,000 h eco
Light output control—Steps
Optics
Throw ratio0.9–1.5:11.49–1.64:1
Image size60–300 in30–300 in
Projection offset—103%
ZoomOpticalOptical
Zoom ratio1.67×Derived1.1×Derived
Focal length—22–24.1 mm
Aperture (f-number)—2.4–2.5
FocusMotorisedManual
AutofocusYes—
Vertical keystone—30°
Horizontal keystone30°30°
Auto keystoneYes—
Corner correction—4-corner
Auto setupFit to screen, Obstacle avoidance—
Lens elements14—
Motion & gaming
Frame interpolation (MEMC)Yes—
Max input refresh—1080p: 120 Hz · 4K UHD: 60 Hz
Max refresh at 1080p—120 HzDerived
Max refresh at 4K—60 HzDerived
Input lag1080p: 60 Hz 18.3 ms · 4K UHD: 60 Hz 18.3 ms1080p: 60 Hz 16.7 ms · 120 Hz 8.4 ms · 4K UHD: 60 Hz 33.7 ms
Lowest input lag18.3 msDerived8.4 msDerived
Input lag at 4K 60 Hz18.3 msDerived33.7 msDerived
Inputs & control
HDMI inputsHDMI 2.1 (eARC)2 × HDMI 2.0
HDMI inputs (count)1Derived2Derived
Newest HDMI versionHDMI 2.1DerivedHDMI 2.0Derived
Other video inputs—VGA
Max input resolution—DCI 4K
Audio inputs—3.5 mm
USB media playbackYes—
Control ports—RS-232
PJLink—Class 2
Control-system drivers—Crestron, AMX
Horizontal scan—15–135 kHz
Vertical scan—24–120 Hz
Smart platform
Wi-FiWi-Fi 5—
Ethernet—Yes
Smart platformGoogle TV—
RAM2 GB—
Storage32 GB—
NetflixBuilt in—
CastingChromecast built-in—
Audio
Speaker power400 W10 W
Speakers—1
Layout7.1.4Mono
Audio formatsDolby Atmos—
Audio outputs+ HDMI eARC+ 3.5 mm
HDMI audio returneARCDerivedNoneDerived
Bluetooth speaker modeYes—
Physical & installation
Dimensions (W × D × H)435 × 343 × 761 mm307 × 228 × 125 mm
Weight32,800 g3,100 g
ColoursBlack—
Orientations—Table, Ceiling, Rear, Portrait, 360°
Built-in standGimbal, 25° tilt, motorisedFoot
Ceiling mount—M4, screws ≥ 10 mm
Ingress protectionIP43—
Environment & power
Operating temperature—0–40°C
Altitude—3,048 m · high-altitude mode
Power draw—Normal 226 W · Eco 130 W
Standby—Up to 0.5 W
Mains input—100–240 V · 50/60 Hz
Noise
Fan noise26 dB(A)Max 35 dB(A) · Eco 29 dB(A)
Safety & compliance
Risk group—RG2
Marks+ CE, + UKCA+ FCC
Support & ownership
Warranty2 yr1 yr (light source 5 yr or 12,000 h)
User manualhttps://salesforce-knowledge-download.s3.us-west-2.amazonaws.com/000031751/en_US/000031751.pdfhttps://region-resource.optoma.com/products/documents/TbSJrephJwwjUrSZCJ00GyX2mbidYpGRwtjMXOZQ.pdf
In the box
In the boxRemote, Remote batteries, Quick start guide, + USB cable, + Lens cap, + Stand or mount+ Power cord, Remote, Remote batteries, Quick start guide
RemoteVoiceIR · backlit