BenQ AK800ST vs Epson PowerLite L570U

BenQ AK800ST is lighter. Epson PowerLite L570U is $828 cheaper, quieter and in stock.

	BenQ AK800STMSRP $3,999	Epson PowerLite L570U$3,171 · Amazon Buy

Key differences
White light output
White light output	5,000 lm ANSI	5,200 lm ISO
Native resolution
Native resolution	—	WUXGA (1920 × 1200)
Throw ratio
Throw ratio	0.69–0.83:1	1.35–2.2:1
Lowest input lag
Lowest input lag	4.8 msDerived	—
Light source
Light source	Laser (phosphor)	—
Fan noise
Fan noise	Normal 34 dB(A) · Eco 29 dB(A)	Normal 31 dB(A) · Eco 23 dB(A)
MSRP
MSRP	$3,999	$3,496
Best price
Best price	—	$3,171
Room fit80″100″120″150″
Distance to screen
Distance to screen	1.5–1.8 m	2.9–4.7 m
Picture
White light output
White light output	5,000 lm ANSI	5,200 lm ISO
Colour light output
Colour light output	—	5,200 lm
Brightness uniformity
Brightness uniformity	—	86%
Brightness by mode
Brightness by mode	—	Normal 5,200 lm · Eco 3,640 lm
Eco brightness
Eco brightness	—	70%Derived
Imaging technology
Imaging technology	DLP	3LCD
Chip / panel diagonal
Chip / panel diagonal	0.65 in	0.67 in
Native resolution
Native resolution	—	WUXGA (1920 × 1200)
Native aspect
Native aspect	16:9Derived	16:10Derived
Pixel shift
Pixel shift	—	Yes (scheme not stated)
Addressable resolution
Addressable resolution	4K UHD (3840 × 2160)	—
Dynamic contrast
Dynamic contrast	3,000,000:1	Up to 2,500,000:1
Dynamic contrast method
Dynamic contrast method	—	Light-source dimming
Colour gamut
Colour gamut	Rec. 709 97% coverage	—
Colour bit depth (per channel)
Colour bit depth (per channel)	10 bit	10 bit
HDR formats
HDR formats	HDR10, HLG	HDR10, HLG
Colour management (CMS)
Colour management (CMS)	6-axis	6-axis
Greyscale control points
Greyscale control points	11	—
Picture mode memories
Picture mode memories	—	10
Auto-calibration
Auto-calibration	—	Sensor supported
Light source
Light source
Light source	Laser (phosphor)	—
Emitter
Emitter	Blue laser + phosphor	Blue laser + phosphor
Light-source life
Light-source life	20,000 h normal · 30,000 h eco	20,000 h normal · 30,000 h eco
Life defined as
Life defined as	—	50% brightness
Light output control
Light output control	Continuous	—
Constant brightness mode
Constant brightness mode	—	Yes
Warm-up time
Warm-up time	—	30 s
Cool-down time
Cool-down time	—	0 s
Optics
Throw ratio
Throw ratio	0.69–0.83:1	1.35–2.2:1
Throw measured from
Throw measured from	Lens	—
Image size
Image size	60–300 in	50–500 in
Projection offset
Projection offset	103%	—
Zoom
Zoom	Optical	Optical
Zoom ratio
Zoom ratio	1.2×Derived	1.63×Derived
Focal length
Focal length	10.31–12.32 mm	20–31.8 mm
Aperture (f-number)
Aperture (f-number)	2.49–2.7	1.5–1.7
Focus
Focus	Motorised	Manual
Autofocus
Autofocus	Yes	No
Autofocus runs
Autofocus runs	On demand	—
Vertical lens shift
Vertical lens shift	—	±50%
Horizontal lens shift
Horizontal lens shift	—	±20%
Motorised lens shift
Motorised lens shift	—	No
Vertical keystone
Vertical keystone	30°	30°
Horizontal keystone
Horizontal keystone	30°	30°
Corner correction
Corner correction	4-corner	—
Grid warp
Grid warp	Yes	Yes
Auto setup
Auto setup	Fit to screen	—
Motion & gaming
Frame interpolation (MEMC)
Frame interpolation (MEMC)	Yes	—
Max input refresh
Max input refresh	1080p: 240 Hz · 4K UHD: 60 Hz	—
Input lag
Input lag	1080p: 60 Hz 18.6 ms · 120 Hz 9.7 ms · 240 Hz 4.8 ms · 4K UHD: 60 Hz 18.1 ms	—
Gaming features
Gaming features	ALLM	—
Inputs & control
HDMI inputs
HDMI inputs	2 × HDMI 2.1 (HDCP 2.3) · HDMI 2.1 (eARC, HDCP 2.3)	2 × HDMI (HDCP 2.3)
Other video inputs
Other video inputs	—	HDBaseT
Max input resolution
Max input resolution	4K UHD	DCI 4K
USB media playback
USB media playback	Yes	Yes
Control ports
Control ports	RS-232	RS-232
Control-system drivers
Control-system drivers	—	Control4, Crestron
Horizontal scan
Horizontal scan	15–135 kHz	26–135 kHz
Vertical scan
Vertical scan	23–240 Hz	23.98–60 Hz
Smart platform
Ethernet
Ethernet	Yes	Yes
Security updates until
Security updates until	31 Aug 2029	—
Casting
Casting	Chromecast built-in, Miracast	—
Audio
Speaker power
Speaker power	10 W	10 W
Speakers
Speakers	1	1
Layout
Layout	—	Mono
Audio outputs
Audio outputs	3.5 mm, HDMI eARC	3.5 mm
HDMI audio return
HDMI audio return	eARCDerived	NoneDerived
Physical & installation
Dimensions (W × D × H)
Dimensions (W × D × H)	388 × 302 × 140 mm	440 × 304 × 122 mm
Weight
Weight	5,900 g	8,300 g
Orientations
Orientations	Table, Ceiling, Rear	Table, Ceiling, Rear, 360°
Ceiling mount
Ceiling mount	M4	4 × M4, 9 mm screws, 100 × 100 mm spacing
Dust filter
Dust filter	None	Replaceable
Ingress protection
Ingress protection	IP5X (light engine)	—
Sealed optical engine
Sealed optical engine	Yes	—
Environment & power
Operating temperature
Operating temperature	0–40°C	0–45°C
Operating humidity
Operating humidity	10–90%RH	20–80%RH
Altitude
Altitude	3,000 m · high-altitude mode	3,048 m · high-altitude mode
Power draw
Power draw	Max 327 W · Normal 285 W · Eco 223 W	Normal 323 W · Eco 250 W
Standby
Standby	Up to 0.5 W	0.5 W
Networked standby
Networked standby	Up to 2 W	2 W
Mains input
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Fan noise
Fan noise	Normal 34 dB(A) · Eco 29 dB(A)	Normal 31 dB(A) · Eco 23 dB(A)
Safety & support
Laser class
Laser class	Class 1	Class 1
Risk group
Risk group	RG2	RG2
Marks
Marks	—	FCC, UL
Warranty
Warranty	3 yr	🇺🇸 US 3 yr · 🇨🇦 CA 3 yr
User manual
User manual	https://esupportdownload.benq.com/esupport/PROJECTOR%20FOR%20CONSUMER/UserManual/AK800ST/AK800ST_UM_EN_261009133619.pdf	https://files.support.epson.com/docid/cpd6/cpd63066.pdf
Spare parts
Spare parts	Mount CM00G3	—
In the box
In the box
In the box	Power cord, Remote, Remote batteries, Quick start guide, Warranty card	Power cord, Remote, Remote batteries, Quick start guide, HDMI cable, Lens cap
Remote
Remote	IR	IR

BenQ AK800STMSRP $3,999

Epson PowerLite L570U$3,171 · Amazon

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