BenQ TK705STi

MSRP$1,999

BenQ TK705STi front three-quarter view: grey fabric-front body with a square lens recess, a camera window and a perforated metal side panel

Brand	BenQ · Cinema
Type	Home cinema
Resolution	4K UHD
HDR formats	HDR10, HDR10+, HLG
Imaging technology	DLP
Light source type	LED
ANSI lumens	3,000 lm
Throw ratio	0.8:1
Input lag (rated)	1920×1080 @ 60 Hz: 5 ms · 3840×2160 @ 60 Hz: 5 ms

A short-throw single-chip DLP LED projector with 4K UHD output, a rated 3,000 ANSI lumens and a fixed 0.8 throw ratio. It runs Google TV, has two HDMI 2.1 inputs (one with eARC), auto focus and keystone, and a 5 ms input-lag rating at 4K/60 Hz.

Data sheet

Picture

Imaging technology	DLP
Chip / panel diagonal	0.47 in
Native aspect ratio	16:9
Addressable resolution	3840 × 2160
Dynamic contrast	600,000:1
Rec.709 gamut	98%
Gamut metric	Coverage
Bit depth / 'number of colours'	30 bit
Greyscale control points	11
HDR formats	HDR10, HDR10+, HLG
Frame interpolation (MEMC)	Yes
Input lag (rated)	1920×1080 @ 60 Hz: 5 ms · 3840×2160 @ 60 Hz: 5 ms
Auto low-latency mode	Yes

Optics

Throw ratio	0.8:1
Projection distance table	50″: 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 type	Digital
Zoom ratio	1×
Focus	Auto
Fixed offset	100%
Focal length	8.5 mm
F-number	1.8
Image size range	30–300 in
Vertical keystone	-30–30°
Horizontal keystone	-20–20°

Light source

Light source type	LED
Light source detail	4LED
Light source life	Normal: 20,000 h · Eco: 30,000 h
Light-source dimming	Manual steps
ANSI lumens	3,000 lm ANSI	ANSI

Audio

Speaker power	16 W
Speaker count	2
Audio outputs	3.5 mm, HDMI eARC, Bluetooth
HDMI ARC	Yes
HDMI eARC	Yes
Bluetooth speaker mode	Yes
Bluetooth audio out	Yes

Inputs, control & connectivity

Max input signal	3840 × 2160
HDMI port count	2
HDMI ports (feature-level)	HDMI-1: HDMI 2.1, HDCP 2.2; HDMI-2: HDMI 2.1, HDCP 2.2
Horizontal scan frequency	15–102 kHz
Vertical scan frequency	23–120 Hz
USB-C video (DP Alt Mode)	Yes
USB media playback	Yes
12 V trigger	Yes
Wi-Fi	Wi-Fi 6
Bluetooth version	5.2
Autofocus	When moved
Auto keystone	Yes
Screen fit / alignment	Yes
Obstacle avoidance	Yes
Eye-protection sensor	Yes

Firmware / software

Smart OS	Google TV
OS version	Android 11
Netflix	Native
Casting	Chromecast built-in

Environment & power

Operating temperature	0–40°C
Operating humidity	10–90%RH
Altitude / high-altitude mode	2,000 m
High-altitude mode	Yes
Operating orientations	Table, Ceiling, Rear, Tilt-limited
Rated voltage	100–240 V
Rated frequency	50–60 Hz
Power consumption (max)	250 W
Standby power	0.5 W
Networked standby power	2 W
Power supply	External brick
USB-C PD output	30 W
Fan noise (sound pressure)	Normal: 28 dB(A) · Eco: 24 dB(A)

Physical & installation

Width	229 mm
Depth	250 mm
Height	168 mm
Weight	3.8 kg
Mount hole pattern	Thread: M4
Tripod socket	Yes

Support & ownership

Warranty	🇺🇸 US 3 yr
User manual	https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/TK705STi/TK705STi_UM_EN_260316112414.pdf

In the box

Box contents	Projector, Remote, Power adapter, Power cord, User documents
Remote type	Voice

Tools

Throw calculator — How far from the screen the TK705STi needs to sit for a given image size, set to its 0.8:1 lens.
Download spec as CSV — Every value on this data sheet with its unit and source, one row per spec.
Download spec as JSON — The same data from the open data API, with variants and identifiers.