Benq TK705STi Projector
- In UK stock, ships from the UK
- UK manufacturer warranty
- UK-based engineers
- No import duty or customs charges
- GBP pricing, UK VAT invoices
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Description
The BenQ TK705STi is the short-throw sibling of the TK705i, built for living rooms where the projector needs to sit close to the screen. It projects a crisp, cinema-quality image from 100 to 150 inches from as little as 5.8 to 8.7 feet away, powered by the same maintenance-free 4LED light source rated up to 30,000 hours in Eco mode. A 600,000:1 contrast ratio and 98% Rec.709 colour coverage via BenQ CinematicColor and HDR-Pro deliver cinematic image quality, while an 8-Way Smart Image Adaptation system automatically sharpens, centres and aligns the picture and adjusts tone based on wall colour and ambient light. Built-in Google TV brings Netflix, YouTube and Prime Video without extra hardware. Ultra-low input lag of 5ms at 4K/60Hz with ALLM support makes it a strong choice for console gaming as well as movie nights, backed by HDMI 2.1 connectivity, eARC audio return and dual 8W speakers.
Key features
Projects 100 to 150 inches from just 5.8 to 8.7 feet away.
Auto sharpens, centres, aligns and adjusts tone based on wall colour and ambient light.
Ultra-low input lag at 4K/60Hz for responsive console gaming.
Direct access to Netflix, YouTube, Prime Video and more out of the box.
Technical specifications
Throw distance guide
With its 0.8:1 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.
| Image size | Image dimensions | Lens distance |
|---|---|---|
| 60" | 1.33 m × 0.75 m | 1.1 m |
| 80" | 1.77 m × 1.00 m | 1.4 m |
| 100" | 2.21 m × 1.25 m | 1.8 m |
| 120" | 2.66 m × 1.49 m | 2.1 m |
| 150" | 3.32 m × 1.87 m | 2.7 m |
Planning from a real wall? Use the projector room planner to upload a photo, preview the image to scale and find projectors that fit within your maximum available space.
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.
Frequently asked questions
How far from the screen does the TK705STi sit, and how big can the image get?
With its fixed 0.8 throw ratio, the TK705STi projects a 100 to 150-inch image from just 5.8 to 8.7 feet away, making it a genuine short-throw living room projector.
How bright is the TK705STi and is it good for gaming?
It delivers 3,000 ANSI lumens and, at 4K/60Hz with ALLM support, an ultra-low 5ms input lag, making it a strong choice for both movie nights and console gaming.
Does the TK705STi have built-in streaming apps?
Yes, it has built-in Google TV, giving direct access to Netflix, YouTube, Prime Video and more without extra hardware.
How long does the TK705STi's light source last?
Its maintenance-free 4LED light source is rated up to 30,000 hours in Eco mode, so there are no lamps to replace.
What warranty comes with the TK705STi?
It's covered by a 3-year (36-month) warranty.
How quickly can TopAV deliver the TK705STi?
It's in stock at TopAV, so dispatch is within 2 working days, with free standard UK delivery on this order value.
Delivery & returns
Estimated delivery 29 Aug - 2 Sept. UK mainland delivery only — some large or made-to-order items may carry longer lead times.
Unused items in original packaging can be returned within 14 days of delivery. Faulty items are covered under manufacturer warranty.
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.
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 — no card payment required. Purchase orders and credit terms are for education customers only.
All transactions are processed over an encrypted, secure checkout.
Need help specifying this for your space?
Ask Andrew — he knows the full catalogue and can advise on installation, mounting and compatible AV systems.