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PROJECTORS

BenQ TK850i

exact TK850i UK manufacturer catalogue configuration · BenQ part tk850i

Projected resolution
4K UHD (3840×2160)
Projection technology
DLP
Light source
Lamp

BenQ TK850i in its exact UK manufacturer catalogue configuration. Compare the declared projected image, actual light-source and brightness basis, optical placement and source-listed inputs together.

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THE ACTUAL PRODUCT
BenQ TK850i — exact-model official product image.
Official product image · Image source detailsProduct imagery does not establish a retailer’s bundle or condition.
Compare with BenQ TK860

Specifications checked 17 Oct 2026Manufacturer specifications, not a hands-on test.

Options worth comparing

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The nearest checked projectors by key specifications, with what differs from the BenQ TK850i. The first matches the Compare button above.

BenQ TK860 — exact-model official product image.BenQ TK860tk860 · exact TK860 UK manufacturer catalogue configuration
Brightness
3300 ANSI lumensThis one: 3000 ANSI lumens
Connections
(x3), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2), HDMI-3 (2.0/HDCP2.2) (4K 120Hz *downscaling to 1080p120Hz) (HDMI in); (x2), USB Type A-1 (3.0/Power Supply1.5A), USB Type A-3 (2.0/Power Supply2.5A) (USB Type A); (x1), USB Type Mini B-1(service) (USB Type Mini B); 1 × RS232 in (DB-9pin); 1 × DC 12V Trigger (3.5mm Jack); 1 × Audio out (3.5mm Mini Jack); S/PDIF (Multi-Channel, RAW)This one: (x3), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2), HDMI-3 (2.0/HDCP2.2), HDMI-Internal (2.0b/HDCP2.2) (HDMI in); (x2), USB Type A-1 (3.0/Power Supply1.5A), USB Type A-2 (3.0/Power Supply1.0A/Reader), USB Type A-3 (2.0/Power Supply2.5A) (USB Type A); (x1), USB Type Mini B-1(service) (USB Type Mini B); 1 × RS232 in (DB-9pin); 1 × DC 12V Trigger (3.5mm Jack); 1 × Audio out (3.5mm Mini Jack); S/PDIF (2-Channel, PCM)
BenQ TK860i — exact-model official product image.BenQ TK860iTK860i · exact TK860i UK manufacturer catalogue configuration
Brightness
3300 ANSI lumensThis one: 3000 ANSI lumens
Connections
(x3), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2), HDMI-3 (2.0/HDCP2.2) (4K 120Hz *downscaling to 1080p120Hz), HDMI-Internal (2.0/HDCP2.2) (HDMI in); (x2), USB Type A-1 (3.0/Power Supply1.5A), USB Type A-3 (2.0/Power Supply2.5A) (USB Type A); (x1), USB Type Mini B-1(service) (USB Type Mini B); 1 × RS232 in (DB-9pin); 1 × DC 12V Trigger (3.5mm Jack); 1 × Audio out (3.5mm Mini Jack); S/PDIF (Multi-Channel, RAW)This one: (x3), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2), HDMI-3 (2.0/HDCP2.2), HDMI-Internal (2.0b/HDCP2.2) (HDMI in); (x2), USB Type A-1 (3.0/Power Supply1.5A), USB Type A-2 (3.0/Power Supply1.0A/Reader), USB Type A-3 (2.0/Power Supply2.5A) (USB Type A); (x1), USB Type Mini B-1(service) (USB Type Mini B); 1 × RS232 in (DB-9pin); 1 × DC 12V Trigger (3.5mm Jack); 1 × Audio out (3.5mm Mini Jack); S/PDIF (2-Channel, PCM)
BenQ W2710i — exact-model official product image.BenQ W2710iW2710i · exact W2710i UK manufacturer catalogue configuration
Brightness
2200 ANSI lumensThis one: 3000 ANSI lumens
Connections
(x3), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2), HDMI-3 (2.0/HDCP2.2) (4K 120Hz *downscaling to 1080p120Hz), HDMI-Internal (2.0b/HDCP2.2) (HDMI in); (x2), USB Type A-1 (3.0/Power Supply1.5A), USB Type A-3 (2.0/Power Supply2.5A) (USB Type A); (x1), USB Type Mini B-1(service) (USB Type Mini B); 1 × RS232 in (DB-9pin); 1 × DC 12V Trigger (3.5mm Jack); 1 × Audio out (3.5mm Mini Jack); S/PDIF (Multi-Channel, RAW)This one: (x3), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2), HDMI-3 (2.0/HDCP2.2), HDMI-Internal (2.0b/HDCP2.2) (HDMI in); (x2), USB Type A-1 (3.0/Power Supply1.5A), USB Type A-2 (3.0/Power Supply1.0A/Reader), USB Type A-3 (2.0/Power Supply2.5A) (USB Type A); (x1), USB Type Mini B-1(service) (USB Type Mini B); 1 × RS232 in (DB-9pin); 1 × DC 12V Trigger (3.5mm Jack); 1 × Audio out (3.5mm Mini Jack); S/PDIF (2-Channel, PCM)
The useful part.

Key strengths

The manufacturer supplies model-specific projection, placement and connection specifications. Use the stated throw ratio, actual image size and lens configuration to plan your installation.

The checks that matter.

Before you buy

Manufacturer image and brightness claims are not an independent picture-quality test. Physical imager pixels, input limits, measurement methods, bundled TV devices and regional accessories need their own stated source scope; no overall winner or current stock is established.

Every specification. With its source.

Full specifications

Exact configuration: tk850i · exact TK850i UK manufacturer catalogue configuration

54 specifications in 7 groups. Values are manufacturer specifications unless a row says “Measured result” or “Calculated from cited specifications”. 8 rows repeat listed facts in the manufacturer’s own wording, kept under “Manufacturer wording”.

Projection & image

12 items
Projected resolution
4K UHD (3840×2160)

Source label Resolution. This is the manufacturer display/projected-image claim; it does not independently establish the physical DMD/imager pixel grid. Accepted signal resolution remains separate.

Source
Projection technology
DLPSource
Physical imager pixel grid
Not listed by the manufacturer

A physical imager pixel grid is not separately established by these supplied sources. The declared display/projected resolution and chip diagonal do not fill this field.

Source
Native Aspect Ratio
16:9

Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Contrast Ratio (FOFO)
30,000:1

Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Display Color
30-bit (1.07 billion colors)

Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Rec. 709 Coverage
98%

Manufacturer section Picture. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Picture Modes
3D, Bright, Cinema, HDR, HLG, Living Room, Silence, Sports, User

Manufacturer section Picture. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Resolution Support
VGA (640 x 480) to 4K UHD (3840 x 2160)

Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
3D Glasses
DGD5, (Optional)

Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Wireless Projection
Google Cast

Manufacturer section Smart System. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Projection System
DLP

Manufacturer section Projection System. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

Resolution
4K UHD (3840×2160)

Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source

Light source & brightness

5 items
Light source
LampSource
Published ANSI brightness
3000 ANSI lm

Actual source field Brightness (ANSI lumens): 3000. Manufacturer measurement/mode qualifications remain in the full specifications; no cross-method conversion.

Source
Brightness (ANSI lumens)
3000

Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Light Source
Lamp

Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Light Source Life
a. Normal 4000 hrs, c. SmartEco 15000 hrs, b. ECO 10000 hrs

Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

Brightness
3000 ANSI lumens

Manufacturer claim. Actual published method: ANSI lumens. Centre brightness, dynamic contrast and other lumen methods remain separate; no conversion or measured performance is asserted. Manufacturer section Display. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Brightness (ANSI lumens).

Source

Lens, placement & image size

9 items
Minimum optical throw ratio
1.13

Exact manufacturer optical throw row: 1.13~1.47. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.

Source
Maximum optical throw ratio
1.47

Exact manufacturer optical throw row: 1.13~1.47. Applies to the listed lens/configuration; digital zoom, keystone and throw distance remain separate.

Source
Zoom Ratio
1.3x

Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Lens
F/# = 1.9 - 2.47, f = 12 - 15.6 mm

Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Projection Offset (Full-Height)
100%

Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Keystone Adjustment
1D, (Auto) Vertical ± 30 degrees

Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Lens Shift Vertical
+10%

Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Lens cover
Yes

Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Universal Ceiling Mount
(Optional), CM00G3

Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Manufacturer wording (2)

The same facts in the manufacturer’s combined or original wording, each with its source.

Throw ratio
1.13~1.47Source
Throw Ratio
1.13~1.47

Manufacturer section Optical. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source

Connections & accepted signals

11 items
Connections
(x3), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2), HDMI-3 (2.0/HDCP2.2), HDMI-Internal (2.0b/HDCP2.2) (HDMI in); (x2), USB Type A-1 (3.0/Power Supply1.5A), USB Type A-2 (3.0/Power Supply1.0A/Reader), USB Type A-3 (2.0/Power Supply2.5A) (USB Type A); (x1), USB Type Mini B-1(service) (USB Type Mini B); 1 × RS232 in (DB-9pin); 1 × DC 12V Trigger (3.5mm Jack); 1 × Audio out (3.5mm Mini Jack); S/PDIF (2-Channel, PCM)

Source-listed physical inputs, outputs and controls. Service USB, power outputs, connector versions and eARC claims retain their separate scopes; no full-bandwidth or compatibility guarantee inferred. Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: HDMI in. Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: USB Type A. Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: USB Type Mini B. Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: RS232 in (DB-9pin). Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: DC 12V Trigger (3.5mm Jack). Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Audio out (3.5mm Mini Jack). Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: S/PDIF.

Source
Input Lag
83.34ms (1080p@60Hz), 83.34ms (4K@60Hz)

Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Horizontal Frequency
15K~135KHz

Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Vertical Scan Rate
23~120Hz

Manufacturer section Compatibility. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
HDMI in
(x3), HDMI-1 (2.0b/HDCP2.2), HDMI-2 (2.0b/HDCP2.2), HDMI-3 (2.0/HDCP2.2), HDMI-Internal (2.0b/HDCP2.2)

Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
USB Type A
(x2), USB Type A-1 (3.0/Power Supply1.5A), USB Type A-2 (3.0/Power Supply1.0A/Reader), USB Type A-3 (2.0/Power Supply2.5A)

Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
USB Type Mini B
(x1), USB Type Mini B-1(service)

Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
RS232 in (DB-9pin)
(x1)

Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
HDMI Audio Return
ARC, 2 channel

Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
S/PDIF
2-Channel, PCM

Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Wi-Fi Standard
802.11 a/b/g/n/ac (2.4G/5G)

Manufacturer section Smart System. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Manufacturer wording (3)

The same facts in the manufacturer’s combined or original wording, each with its source.

DC 12V Trigger (3.5mm Jack)
(x1)

Manufacturer section I/O Interface. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Audio out (3.5mm Mini Jack)
(x1)

Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Bluetooth
Yes, Bluetooth 4.2

Manufacturer section Smart System. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source

Software, audio & accessories

6 items
Speaker
(x2), 5W Chamber

Manufacturer section Audio. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Android TV dongle
QS01, (Standard)

Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Power Cord (by region)
x1 (3.0M)

Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Quick Start Guide
(x1) 21L

Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Warranty Card (by region)
Yes

Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Built-in OS
Yes, Android 10.0

Manufacturer section Smart System. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source

Size & weight

5 items
Weight
4200 g

Manufacturer Net Weight (kg): 4.2. Kilograms normalized to grams; packaging/gross mass and separately listed accessories are not substituted.

Source
Dimensions (WxHxD) (mm)
380 x 127 x 263

Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Net Weight (kg)
4.2

Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Dimensions (WxHXD) (inch)
14.96 x 4.99 x 10.35

Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Net Weight (lb)
9.25

Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Manufacturer wording (1)

The same facts in the manufacturer’s combined or original wording, each with its source.

Dimensions
380 x 127 x 263 mm

Manufacturer axes, original measurement units and foot/handle/configuration basis remain literal. Packaging dimensions are separate. Manufacturer section Dimension & Weight. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected. Source field: Dimensions (WxHxD) (mm).

Source

Power, noise & operating conditions

6 items
Operating Temperature
0~40℃

Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Power Supply
AC 100 to 240 V, 50/60 Hz

Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Typical Power Consumption (110V)
330W

Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Stand-by Power Consumption
<0.5W

Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Acoustic Noise (Typ./Eco.)(dB)
30/28

Manufacturer section Environment. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
Remote Control w/ Battery
RCI067, RCV017

Manufacturer section Accessories. Original units, optical/digital basis, input modes, test qualifications and regional accessory scope retained. No apparent source error is silently corrected.

Source
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