BenQ TK705STi vs BenQ TK800M

BenQ TK705STi is better for gaming, quieter and lighter. BenQ TK800M is $500 cheaper.

Key differences
Native resolution
—1080p (1920 × 1080)
Native contrast (on/off)
—10,000:1
Throw ratio
0.8:11.5–1.65:1
Lowest input lag
5 msDerived51 msDerived
HDR formats
HDR10, HDR10+, HLGHDR10, HLG
Light source
LEDLamp
Fan noise
Normal 28 dB(A) · Eco 24 dB(A)Normal 33 dB(A) · Eco 29 dB(A)
MSRP
$1,999$1,299
Best price
$1,799—
Room fit
Distance to screen
1.8 m3.3–3.7 m
Picture
White light outputANSI
3,000 lm ANSI3,000 lm ANSI
Imaging technology
DLPDLP
Chip / panel diagonal
0.47 in0.47 in
Native resolution
—1080p (1920 × 1080)
Native aspect
16:9Derived16:9Derived
Pixel shift
—XPR 4-way
Addressable resolution
4K UHD (3840 × 2160)4K UHD (3840 × 2160)
Colour wheel segments
—4
Native contrast (on/off)
—10,000:1
Dynamic contrast
600,000:1—
Dynamic contrast method
—None
Colour gamut
Rec. 709 98% coverageRec. 709 96% coverage
Colour bit depth (per channel)
10 bit10 bit
Gamma / EOTF presets
—2.2, 2.4, 2.6
HDR formats
HDR10, HDR10+, HLGHDR10, HLG
Tone mapping
—Adjustable
Colour management (CMS)
—6-axis
Greyscale control points
11—
Picture mode memories
—2
3D
—Yes
3D formats
—Frame packing, Side-by-side, Top-bottom, Frame sequential
Light source
Light source
LEDLamp
Emitter
4-channel LED—
Lamp power
—240 W
Replacement lamp
—5J.JHN05.001
Light-source life
20,000 h normal · 30,000 h eco4,000 h normal · 10,000 h eco · 15,000 h super eco · 8,000 h dynamic
Light output control
Steps—
Optics
Throw ratio
0.8:11.5–1.65:1
Image size
30–300 in60–200 in
Projection offset
100%110%
Zoom
DigitalOptical
Zoom ratio
—1.1×Derived
Focal length
8.5 mm15.84–17.45 mm
Aperture (f-number)
1.82–2.05
Focus
MotorisedManual
Autofocus
Yes—
Autofocus runs
When moved—
Vertical lens shift
—None
Motorised lens shift
—No
Vertical keystone
30°40°
Horizontal keystone
20°—
Auto keystone
YesYes
Auto setup
Fit to screen, Obstacle avoidance—
Interchangeable lens
—No
Lens elements
—7
Lens material
—Glass
Motion & gaming
Frame interpolation (MEMC)
YesNo
Input lag
1080p: 60 Hz 5 ms · 4K UHD: 60 Hz 5 ms1080p: 60 Hz 51 ms
Gaming features
ALLM—
Inputs & control
HDMI inputs
2 × HDMI 2.1 (HDCP 2.2)HDMI 2.0 (HDCP 2.2) · HDMI 1.4 (HDCP 1.4)
Other video inputs
USB-C (DisplayPort)VGA
Max input resolution
4K UHD4K UHD
Audio inputs
—3.5 mm
USB media playback
YesNo
Control ports
12 V triggerRS-232, 12 V trigger
Horizontal scan
15–102 kHz15–135 kHz
Vertical scan
23–120 Hz23–120 Hz
Smart platform
Wi-Fi
Wi-Fi 6—
Bluetooth
5.2—
Smart platform
Google TVNone
OS version
11—
Netflix
Built in—
Casting
Chromecast built-in—
Audio
Speaker power
16 W5 W
Speakers
21
Layout
—Mono
Audio outputs
3.5 mm, HDMI eARC, Bluetooth3.5 mm
HDMI audio return
eARCDerivedNoneDerived
Bluetooth speaker mode
Yes—
Physical & installation
Dimensions (W × D × H)
229 × 250 × 168 mm353 × 272 × 135 mm
Weight
3,800 g4,200 g
Orientations
Table, Ceiling, Rear, Limited tiltTable, Ceiling, Rear
Ceiling mount
M4M4, 20–25 mm screws
Tripod socket
Yes—
Environment & power
Operating temperature
0–40°C0–40°C
Operating humidity
10–90%RH10–90%RH
Altitude
2,000 m · high-altitude mode3,000 m · high-altitude mode
Power draw
Max 250 WMax 385 W · Normal 330 W · Eco 250 W
Standby
Up to 0.5 WUp to 0.5 W
Networked standby
Up to 2 W—
Power supply
External adapterBuilt in
Mains input
100–240 V · 50/60 Hz100–240 V · 50/60 Hz
USB-C PD out
30 W—
Fan noise
Normal 28 dB(A) · Eco 24 dB(A)Normal 33 dB(A) · Eco 29 dB(A)
Safety & support
Risk group
—RG2
Eye-protection sensor
Yes—
Warranty
3 yr3 yr (light source 1 yr or 2,000 h)
User manual
https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/TK705STi/TK705STi_UM_EN_260316112414.pdfhttps://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/TK800M/TK800M_UM_EN_210701093638.pdf
Spare parts
—Lamp 5J.JHN05.001
In the box
In the box
Power cord, Power adapter, Remote, User manualPower cord, Remote, Remote batteries, Quick start guide, User manual, Warranty card
Remote
VoiceIR · backlit
BenQ TK705STi$1,799 · Amazon
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