BenQ AK700ST vs AK800ST vs AK900ST: which 4K golf simulator projector suits your room? This guide compares the three models to help you choose based on screen size, projector position, lighting and budget.
Golf Sim Solutions is a BenQ projector partner. We can help you check which model fits your simulator layout before you buy.
The Core Similarities Across the BenQ AK Series
Before diving into the differences, it is important to know what makes this entire line up top-tier. Every model in this comparison delivers Native 4K UHD (3840×2160) resolution, ensuring that every blade of grass, bunker lip, and shadow looks razor-sharp.
They also all utilise a sealed laser light engine, meaning you get instantaneous startup times and zero lamp replacements for the lifespan of the unit.
Effortless Installation: Auto Screen Fit & Screen Fill
One of the biggest headaches in building a golf simulator is getting the image to perfectly square up with your impact screen. BenQ has solved this with their exclusive Auto Screen Fit technology, allowing for effortless full-screen projection at the touch of a button.
Because impact screens come in various shapes and sizes, the Ace Series features a built-in Screen Fill menu that digitally scales the 4K image to maximize pixel density for your specific enclosure without distortion. Supported formats include:
Visit the BenQ Projector Calculator here:
| Aspect Ratio | Optimised Resolution | Best Used For |
|---|---|---|
| 16:9 | 3840 x 2160 | Standard widescreen enclosures and home theater hybrid rooms. |
| 16:10 | 3456 x 2160 | Slightly taller widescreen setups common in premium PC gaming. |
| 3:2 | 3240 x 2160 | Custom mid-height enclosures. |
| 4:3 | 2880 x 2160 | Traditional, taller golf simulator bays to capture high wedge shots. |
| 5:4 | 2700 x 2160 | Narrower, tall custom screen footprints. |
| 1:1 | 2160 x 2160 | Perfectly square setups, ideal for compact rooms and garages. |
The Spec Breakdown: AK700ST vs. AK800ST vs. AK900ST
| Feature | BenQ AK700ST | BenQ AK800ST | BenQ AK900ST |
|---|---|---|---|
| Brightness | 4,000 Lumens | 5,000 Lumens | 6,000 Lumens |
| Throw Ratio | 0.69 – 0.83 | 0.69 – 0.83 | 0.81 – 0.89 |
| Zoom Lens | 1.2x Motorised | 1.2x Motorised | 1.1x Motorised |
| Smart Calibration | Auto Screen Fit | Auto Screen Fit 2.0 | Auto Screen Fit 2.0 |
| Best Application | Dedicated Home Bays | Multi-Use / Hybrid Rooms | Commercial & Luxury |
The Deep Dive
1. The BenQ AK700ST: The Benchmark for Home Bays
The AK700ST is the foundational model for dedicated, light-controlled home simulator rooms.
- Why it works: It provides 4,000 lumens of brightness and a stellar 4K picture. With its 0.69–0.83 short-throw lens and 1.2x motorized zoom, you can mount the projector safely out of the swing path while still filling a massive impact screen.
- The Verdict: If your bay is in a basement or a garage where you control the lighting, the AK700ST offers top-tier 4K performance without requiring you to pay for ultra-bright commercial features.
2. The BenQ AK800ST: The Premium Hybrid
The AK800ST is the sweet spot for high-end home builds, garages with windows, and multi-purpose entertainment spaces.
- Why it works: By bumping the brightness up to 5,000 lumens, it easily cuts through ambient daylight. Crucially, it takes a massive leap forward in setup technology with Auto Screen Fit 2.0 and AI Sim Sense. It actively maps your screen’s exact geometry—which is a game-changer if you are running a curved impact screen.
- The Verdict: If your room gets daytime sun or you want the absolute easiest setup process with cutting-edge AI visual enhancements, the AK800ST is the undisputed champion.
3. The BenQ AK900ST: The Commercial Heavyweight
Engineered for 24/7 commercial facilities and ultra-bright luxury bays, the AK900ST is an absolute powerhouse.
- Why it works: It pushes an incredible 6,000 ANSI lumens. Beyond sheer power, it introduces Picture-in-Picture (PiP) multitasking via Network Display. This allows you to cast live feeds—like Sky Sports or coaching drills—directly over your HDMI golf software. You can watch the weekend tournament in the corner of your screen while playing your own round.
- The Bay Design Catch: The AK900ST has a slightly longer throw ratio (0.81–0.89) and a 1.1x motorised zoom compared to its siblings. This means it must be mounted further back from the impact screen, requiring a deeper room than the 700 or 800 models to achieve the same image size.
Finalising Your Dream Build
Matching the right projector to your enclosure, launch monitor, and ceiling height is critical to avoiding player shadows and club strikes.
Ready to get the exact mounting distances and hardware configurations for your space? Stop by and see us at Golf Sim Solutions Ltd in Masters House on Wilton Road, Humberston. As an approved UK BenQ partner, we can guarantee your 4K visual setup is flawless from day one.
