BenQ TK850i vs JVC DLA-RS4500

	BenQ TK850i MSRP $1,799	JVC DLA-RS4500 MSRP $24,999
Key differences
White light output	3,000 lm ANSI	—
Native resolution	1080p (1920 × 1080)	DCI 4K (4096 × 2160)
Throw ratio	1.13–1.47:1	1.4–2.8:1
Lowest input lag	83.34 msDerived	—
Light source	Lamp	Laser (phosphor)
Fan noise	Normal 30 dB(A) · Eco 28 dB(A)	Up to Max 50 dB(A)
Price	MSRP $1,799	MSRP $24,999
Room fit80″100″120″150″
Distance to screen	2.5–3.3 m	3.1–6.3 m
Brightness
Rated brightness	3,000 lmDerived	—
White light output	3,000 lm ANSI	—
Claimed brightness (non-standard)	—	3,000 lm
Display system
Imaging technology	DLP	LCoS
Chip / panel diagonal	0.47 in	0.69 in
On-screen resolution	4K UHD (3840 × 2160)Derived	DCI 4K (4096 × 2160)Derived
Native resolution	1080p (1920 × 1080)	DCI 4K (4096 × 2160)
Native aspect	16:9Derived	17:9Derived
Pixel shift	XPR 4-way	—
Addressable resolution	4K UHD (3840 × 2160)	—
Colour wheel segments	4	—
Colour wheel speed	2×	—
Contrast
Dynamic contrast	30,000:1	—
Dynamic contrast method	Dynamic iris	Light-source dimming
Manual iris	—	Yes
Colour
Colour gamut	Rec. 709 98% coverage	Over DCI-P3 100% · BT.2020 80%
Colour bit depth (per channel)	10 bit	—
Gamma / EOTF presets	2.2, 2.4, 2.6	2.2, 2.4, 2.6, + Custom
Colour temperature presets	+ Native	+ D93, + D65, + D55, + Custom
HDR
HDR formats	HDR10, HLG	HDR10, HLG
Tone mapping (maker name)	HDR-PRO	—
Calibration
Colour management (CMS)	6-axis	—
Picture mode memories	—	6
Picture certifications	—	ISF, THX
3D
3D	Yes	Yes
3D formats	—	Frame packing, Side-by-side, Top-bottom
Light source
Light source	Lamp	Laser (phosphor)
Light engine	—	BLU-Escent
Lamp power	245 W	—
Replacement lamp	5J.JKC05.001	—
Light-source life	4,000 h normal · 10,000 h eco · 15,000 h super eco	20,000 h
Light output control	—	Steps
Warm-up time	30 s	—
Cool-down time	—	About 10 s
Optics
Throw ratio	1.13–1.47:1	1.4–2.8:1
Image size	30–300 in	60–280 in
Projection offset	100%	—
Zoom	Optical	Optical
Zoom ratio	1.3×Derived	2×Derived
Focal length	12–15.6 mm	—
Aperture (f-number)	1.9–2.47	—
Focus	Manual	Motorised
Vertical lens shift	0–10%	±100%
Horizontal lens shift	—	±43%
Motorised lens shift	—	Yes
Lens memory slots	—	10
Vertical keystone	30°	—
Auto keystone	Yes	—
Lens elements	10	18
Lens material	—	Glass
Motion & gaming
Frame interpolation (MEMC)	Yes	Yes
Max input refresh	—	DCI 4K: 60 Hz
Max refresh at 4K	—	60 HzDerived
Input lag	1080p: 60 Hz 83.3 ms · 4K UHD: 60 Hz 83.3 ms	—
Lowest input lag	83.34 msDerived	—
Input lag at 4K 60 Hz	83.34 msDerived	—
Inputs & control
HDMI inputs	HDMI 2.0 (ARC, HDCP 2.2) · HDMI 2.0 (HDCP 2.2) · HDMI 2.0 (HDCP 2.2, internal)	2 × HDMI (HDCP 2.2, 18 Gbps)
HDMI inputs (count)	2Derived	2Derived
Newest HDMI version	HDMI 2.0Derived	—
Max input resolution	4K UHD	DCI 4K
USB media playback	Yes	—
Control ports	RS-232	RS-232, + Wired IR, + 12 V trigger
Control-system drivers	—	Control4
Horizontal scan	15–135 kHz	—
Vertical scan	23–120 Hz	—
Smart platform
Wi-Fi	Wi-Fi 5	—
Bluetooth	4.2	—
Ethernet	—	Yes
Smart platform	Android TV	—
OS version	9	—
Google-certified	Yes	—
Chipset	Amlogic S905Y2	—
RAM	2 GB	—
Storage	16 GB	—
Netflix	No	—
Casting	Chromecast built-in	—
Audio
Speaker power	10 W	—
Speakers	2	—
Audio outputs	3.5 mm, Optical, HDMI ARC	—
HDMI audio return	ARCDerived	—
Physical & installation
Dimensions (W × D × H)	380 × 263 × 127 mm	500 × 720 × 235 mm
Weight	4,200 g	37,500 g
Orientations	Table, Ceiling, Rear	—
Ceiling mount	M4, 20–25 mm screws	—
Environment & power
Operating temperature	0–40°C	5–35°C
Operating humidity	10–90%RH	20–80%RH
Altitude	3,000 m · high-altitude mode	1,524 m
Power draw	Max 350 W · Normal 340 W · Eco 280 W	750 W
Standby	Up to 0.5 W	0.4 W
Networked standby	—	1.5 W
Mains input	100–240 V · 50/60 Hz	100–240 V · 50/60 Hz
Noise
Fan noise	Normal 30 dB(A) · Eco 28 dB(A)	Up to Max 50 dB(A)
Safety & compliance
Laser class	—	Class 3R
Marks	—	FCC
Support & ownership
Warranty	3 yr	3 yr
User manual	https://esupportdownload.benq.com/esupport/PROJECTOR/UserManual/TK850i/TK850i_UM_EN_200804170913.pdf	—
Spare parts	Lamp 5J.JKC05.001	—
In the box
In the box	Power cord, Remote, Remote batteries, Quick start guide, Warranty card, + Streaming dongle	Power cord, Remote, Remote batteries, Quick start guide, Warranty card, + Lens cap
Remote	IR · Bluetooth · voice · backlit	—