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BenQ

BenQ TK705i 4K UHD 3,000-Lumen 4LED Smart Projector

Name: BenQ TK705i 4K UHD 3,000-Lumen 4LED Smart Projector
Brand: BenQ
SKU: 9H.R0C77.57E
Price: 1249.00 GBP
Availability: InStock

Return within 14 days

3-year manufacturer warranty

Installation services available

£1,249.00inc. VAT

£1,040.83 ex. VAT

In stock, dispatched within 2 working days

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Bought in the UK, backed in the UKWhy it matters →

In UK stock, ships from the UK
UK manufacturer warranty
UK-based engineers
No import duty or customs charges
GBP pricing, UK VAT invoices

Return within 14 days

3-year manufacturer warranty

Installation services available

Call 01342 580255

Key specifications

Brightness3000 ANSI lumens

Light Source LifeUp to 30,000 hrs (Eco)

Zoom Ratio1.3x

Rec. 709 Coverage98%

Input Lag5 ms (1080p/2K/4K 60Hz)

HDMI Inputs2 x HDMI 2.1

USB-CPD out up to 30W

Speaker2 x 8W

All 28 specifications

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Description

The BenQ TK705i turns a living room into a big-screen entertainment hub, combining 4K resolution with a maintenance-free 4LED light source rated at 20,000 hours in normal use and 30,000 hours in Eco mode. A 600,000:1 contrast ratio and 98% Rec.709 colour coverage, powered by BenQ CinematicColor and HDR-Pro, give vivid contrast and cinematic depth.

Also in this range:5,500-Lumen 4,600-Lumen 4,000-Lumen 5,000-Lumen Full specifications Datasheet Compare alternatives

Built-in Google TV brings Netflix, YouTube and other streaming apps straight out of the box, and the TK705i is one of the few projectors in its class with USB-C charging (up to 30W), letting a connected device charge while gaming. Console gaming is well catered for with input lag as low as 5ms at 1080p, 2K and 4K.

It can project up to 150 inches with flexible throw distances, runs as quietly as 24dB, and includes HDMI 2.1 connectivity with eARC and 7.1-channel audio return for pairing with a soundbar or AV receiver.

Call 01342 580255

Key features

4K LED with 600,000:1 Contrast

Maintenance-free 4LED light source delivers deep contrast and 98% Rec.709 colour coverage.

Built-in Google TV

Instant access to Netflix, YouTube, Prime Video and more without extra hardware.

5ms Input Lag

Ultra-low input lag across 1080p, 2K and 4K for responsive console gaming.

USB-C 30W Charging

One of the few projectors in its class that can charge a connected device while gaming.

Technical specifications

Choose a section to view its specifications.

Display (5)

Brightness: 3000 ANSI lumens
Resolution: 4K UHD (3840 x 2160)
Contrast Ratio: 600,000:1 (FOFO)
Aspect Ratio: 16:9
HDR Support: HDR10, HDR10+, HLG

Connectivity (5)

Input Lag: 5 ms (1080p/2K/4K 60Hz)
HDMI Inputs: 2 x HDMI 2.1
USB-C: PD out up to 30W
White Light Output: 3,000 ANSI lumens
Connectivity: 2 x HDMI 2.1 (HDCP 2.2), USB-C (30W PD out), USB-A, 12V trigger, Wi-Fi 802.11ax, Bluetooth 5.2

Audio (2)

Speaker: 2 x 8W
Audio: 2 x 8W speakers, eARC 7.1-channel HDMI audio return

Power & Physical (5)

Max Image Size: 150 inch
Dimensions: 229.2 x 168.2 x 249.7 mm
Power Consumption: 250W typical (110V)
Dimensions (W x D x H): 229.2 x 249.7 x 168.2 mm
Weight: 3.8 kg

Certifications & Warranty (1)

Warranty: 3 years

General (10)

Light Source Life: Up to 30,000 hrs (Eco)
Zoom Ratio: 1.3x
Rec. 709 Coverage: 98%
Projection Technology: Single-chip DLP
Light Source: 4LED, 20,000 hours normal / 30,000 hours eco
Throw Ratio: 1.00 - 1.30:1
Zoom: 1.3x
Keystone Correction: 2D auto: vertical +/-30 degrees, horizontal +/-20 degrees
Smart Platform: Google TV (Android 11)
Noise Level: 26 dBA normal / 24 dBA eco

Call 01342 580255

Throw distance guide

With its 1 to 1.3:1 throw ratio, here's how far the projector needs to sit from the screen for common 16:9 image sizes. Try our throw distance calculator for your exact room.

Try a size

100"

16:9 diagonal image

Image

2.21 m × 1.25 m

Lens position

2.2 m to 2.9 m

Side view: drag the projector to try its available lens positions

Position fits

Image size	Image dimensions	Lens distance range
60"	1.33 m × 0.75 m	1.3 m to 1.7 m
80"	1.77 m × 1.00 m	1.8 m to 2.3 m
100"	2.21 m × 1.25 m	2.2 m to 2.9 m
120"	2.66 m × 1.49 m	2.7 m to 3.5 m
150"	3.32 m × 1.87 m	3.3 m to 4.3 m

Planning from a real wall? Use the projector screen size calculator to upload a photo, preview the image to scale and find projectors that fit within your maximum available space. Replacing an existing projector? The projector replacement calculator checks whether this lens covers the ratio your current mount needs.

Distances are lens-to-screen, calculated from the manufacturer's stated throw ratio; allow for lens shift and mounting hardware. Always confirm against the manufacturer's installation guide before fixing mounts.

See it on your wall, to scale

Choose a picture size, then upload a wall photo, or scan the QR code and take it on your phone. We'll show the projected picture at its real size.

Picture size

100" 16:9 · 2.21 m × 1.25 m

On a computer, the QR code sends your phone photo straight back to this page.

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Complete your setup

Optional extras that fit this product. Tick anything you need and it joins the same basket — or add this product on its own from the buy box above.

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Choose a Screen

Video Conferencing

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Professional Installation

Want it installed by our AV experts? We offer professional on-site installation including mounting, cable management, and system configuration.

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Your Configuration

BenQ TK705i 4K UHD 3,000-Lumen 4LED Smart Projector × 1£1,249.00

Total£1,249.00

inc. VAT

Documents

BenQ TK705i user manual — BenQ published specifications and installation guide (PDF)

Frequently asked questions

What resolution and picture quality does the TK705i offer?

It delivers 4K UHD (3840x2160) resolution at 3,000 ANSI lumens with a 600,000:1 contrast ratio and 98% Rec.709 colour coverage, powered by BenQ's CinematicColor and HDR-Pro for vivid, cinematic images.

How far from the screen does the TK705i need to be for a 100" image?

With a 1.0-1.3 throw ratio, a 100" 16:9 image roughly 2.21m wide needs the projector positioned around 2.2m to 2.9m away, with 1.3x zoom for fine adjustment.

Does the TK705i have built-in streaming apps?

Yes - it runs Google TV (Android 11) built in, giving direct access to Netflix, YouTube and other streaming apps without an external device.

How long does the light source last?

Its maintenance-free 4LED light source is rated for 20,000 hours in normal use and up to 30,000 hours in Eco mode.

What connectivity does the TK705i have?

It has 2x HDMI 2.1 inputs, USB-C with up to 30W power delivery (so a connected device can charge while gaming), and 2x 8W built-in speakers. Input lag is as low as 5ms.

What warranty and delivery does the TK705i come with?

It comes with a 36-month warranty and is in stock at TopAV, dispatching within 2 working days. At £1,249.00 inc VAT it qualifies for free standard UK delivery.

Delivery & returns

Estimated delivery 10 Oct - 14 Oct. UK mainland delivery only. Some large or made-to-order items carry longer lead times, shown on the product page.

Unused items in original packaging can be returned within 14 days of delivery — see the returns policy for how business and consumer returns differ. Faulty items are covered under manufacturer warranty and by your statutory rights.

Full delivery & returns policy

Bought in the UK, backed in the UK

This item is in UK stock and ships to you from within the UK, so the order never crosses a customs border on its way to you.
The manufacturer warranty is honoured here in the UK. If something fails, you deal with us, not with an overseas seller in another time zone.
Our own UK-based engineers install, commission and support what we sell, and can attend site when a system needs hands on it.
Delivered within the UK mainland, so there is no import duty, customs charge or courier handling fee waiting for you on delivery.
Prices are in pounds sterling with proper UK VAT invoices, and purchase orders are accepted from approved education accounts: no currency conversion and no surprises at the door.

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Payment & security

Pay securely by card. Education customers can apply for a 30-day purchase order account.

Schools, colleges, sixth forms, universities and multi-academy trusts can order on invoice, with no card payment required. Purchase orders and credit terms are for education customers only.

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