BenQ TK705i vs BenQ TK705STi

Bold marks the better figure where both are stated to the same standard. “—” means the manufacturer doesn't state it.

BenQ TK705iBenQ TK705i
MSRP $1,799
BenQ TK705STiBenQ TK705STi
MSRP $1,999
Display system
Imaging technologyDLPDLP
Chip / panel diagonal0.47 in0.47 in
Native aspect ratio16:916:9
Addressable resolution3840 × 21603840 × 2160
Optics
Throw ratio1–1.3:10.8:1
Projection distance table50″: 1.11–1.44 m · 60″: 1.33–1.73 m · 70″: 1.55–2.02 m · 80″: 1.77–2.3 m · 90″: 1.99–2.59 m · 100″: 2.21–2.88 m · 110″: 2.44–3.17 m · 120″: 2.66–3.45 m · 130″: 2.88–3.74 m · 140″: 3.1–4.03 m · 150″: 3.32–4.32 m · 160″: 3.54–4.61 m50″: 0.89 m · 60″: 1.06 m · 70″: 1.24 m · 80″: 1.42 m · 90″: 1.59 m · 100″: 1.77 m · 110″: 1.95 m · 120″: 2.13 m · 130″: 2.3 m · 140″: 2.48 m · 150″: 2.66 m · 160″: 2.83 m
Zoom typeOpticalDigital
Zoom ratio1.3×1×
FocusAutoAuto
Fixed offset100%100%
Focal length10.55–13.68 mm8.5 mm
F-number1.8–1.851.8
Image size range60–150 in30–300 in
Vertical keystone-30–30°-30–30°
Horizontal keystone-20–20°-20–20°
Light source
Light source typeLEDLED
Light source detail4LED4LED
Light source lifeNormal: 20,000 h · Eco: 30,000 hNormal: 20,000 h · Eco: 30,000 h
Light-source dimmingManual stepsManual steps
Brightness
ANSI lumens3,000 lm3,000 lm
Contrast & black level
Dynamic contrast600,000:1600,000:1
Colour
Rec.709 gamut98%98%
Gamut metricCoverageCoverage
Bit depth / 'number of colours'30 bit30 bit
Calibration & picture control
Greyscale control points1111
HDR
HDR formatsHDR10, HDR10+, HLGHDR10, HDR10+, HLG
Motion & gaming
Frame interpolation (MEMC)YesYes
Input lag (rated)1920×1080 @ 60 Hz: 5 ms · 3840×2160 @ 60 Hz: 5 ms1920×1080 @ 60 Hz: 5 ms · 3840×2160 @ 60 Hz: 5 ms
Auto low-latency modeYesYes
Audio
Speaker power—16 W
Speaker count22
Audio outputs3.5 mm, HDMI eARC, Bluetooth3.5 mm, HDMI eARC, Bluetooth
HDMI ARC—Yes
HDMI eARCYesYes
Bluetooth speaker modeYesYes
Bluetooth audio outYesYes
Inputs, control & connectivity
Max input signal3840 × 21603840 × 2160
HDMI port count22
HDMI ports (feature-level)HDMI 1: HDMI 2.1, HDCP 2.2; HDMI 2: HDMI 2.1, HDCP 2.2HDMI-1: HDMI 2.1, HDCP 2.2; HDMI-2: HDMI 2.1, HDCP 2.2
Horizontal scan frequency15–102 kHz15–102 kHz
Vertical scan frequency23–60 Hz23–120 Hz
USB-C video (DP Alt Mode)YesYes
USB media playbackYesYes
12 V triggerYesYes
Wi-FiWi-Fi 6Wi-Fi 6
Bluetooth version5.25.2
Firmware / software
Smart OSGoogle TVGoogle TV
OS versionAndroid 11Android 11
NetflixNativeNative
CastingChromecast built-inChromecast built-in
Setup automation
AutofocusWhen movedWhen moved
Auto keystoneYesYes
Screen fit / alignmentYesYes
Obstacle avoidanceYesYes
Eye-protection sensorYesYes
Acoustic noise
Fan noise (sound pressure)Typical: 26 dB(A) · Eco: 24 dB(A)Normal: 28 dB(A) · Eco: 24 dB(A)
Environment & power
Operating temperature0–40°C0–40°C
Operating humidity10–90%RH10–90%RH
Altitude / high-altitude mode2,000 m2,000 m
High-altitude modeYesYes
Operating orientationsTable, Ceiling, RearTable, Ceiling, Rear, Tilt-limited
Rated voltage100–240 V100–240 V
Rated frequency50–60 Hz50–60 Hz
Power consumption (max)250 W250 W
Standby power0.5 W0.5 W
Networked standby power2 W2 W
Power supplyExternal brickExternal brick
USB-C PD output30 W30 W
Physical & installation
Width229 mm229 mm
Depth250 mm250 mm
Height168 mm168 mm
Weight3.8 kg3.8 kg
Mount hole patternThread: M4 · Screw length mm: 10Thread: M4
Tripod socketYesYes
Support & ownership
Warranty🇺🇸 US 3 yr🇺🇸 US 3 yr
User manualhttps://www.projectorcentral.com/pdf/projector_manual_12813.pdfhttps://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/TK705STi/TK705STi_UM_EN_260316112414.pdf
In the box
Box contentsProjector, Remote, Batteries, Power adapter, Power cord, Quick start guide, User documentsProjector, Remote, Power adapter, Power cord, User documents
Remote typeBluetoothVoice