Comparison
AK900ST vs ZK810TST
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A side-by-side look at how the BenQ AK900ST and Optoma ZK810TST compare on specs, accuracy, room requirements, and price. No hype — just the parts of the decision a buyer actually weighs.
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Prices confirmed Nov 10, 2026 · we check every retailer daily
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Prices confirmed Nov 10, 2026 · we check every retailer daily
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Full specificationsEvery spec for both, line by line
Specifications
The numbers, lined up.
Image
| Spec | AK900ST | ZK810TST |
|---|---|---|
| Resolution | 4K UHD (3840×2160) | 4K UHD (3840×2160) |
| Lumens | 6,000 ANSI | 8,500 (7,200 ANSI) |
| Color | 97% Rec. 709; Golf, Bright Golf and HDR Golf picture modes | — |
- ResolutionAK900ST4K UHD (3840×2160)ZK810TST4K UHD (3840×2160)
- LumensAK900ST6,000 ANSIZK810TST8,500 (7,200 ANSI)
- ColorAK900ST97% Rec. 709; Golf, Bright Golf and HDR Golf picture modesZK810TST—
Hardware
| Spec | AK900ST | ZK810TST |
|---|---|---|
| Light Source | Laser, IP5X sealed (20,000 hours; 30,000 Eco) | DuraCore MultiColor laser (30,000 hours) |
| Throw Ratio | 0.81–0.89 (1.1× motorized zoom) | 0.65–0.75 (1.15× motorized zoom) |
| Lens Shift | V ±60% / H ±23% | Motorized; vertical ±50%, horizontal ±18% (datasheet; the page says ±55% / ±25%) |
| Fan Noise | 34/29 dB (normal/eco, BenQ spec) | — |
| Weight | 10.2 kg (22.5 lb) | — |
| Dimensions | — | 19.13 × 17.03 × 7.3 in (W × D × H, datasheet) |
- Light SourceAK900STLaser, IP5X sealed (20,000 hours; 30,000 Eco)ZK810TSTDuraCore MultiColor laser (30,000 hours)
- Throw RatioAK900ST0.81–0.89 (1.1× motorized zoom)ZK810TST0.65–0.75 (1.15× motorized zoom)
- Lens ShiftAK900STV ±60% / H ±23%ZK810TSTMotorized; vertical ±50%, horizontal ±18% (datasheet; the page says ±55% / ±25%)
- Fan NoiseAK900ST34/29 dB (normal/eco, BenQ spec)ZK810TST—
- WeightAK900ST10.2 kg (22.5 lb)ZK810TST—
- DimensionsAK900ST—ZK810TST19.13 × 17.03 × 7.3 in (W × D × H, datasheet)
Performance
| Spec | AK900ST | ZK810TST |
|---|---|---|
| Input Lag | 18.1 ms at 4K/60Hz; 4.8 ms at 1080p/240Hz | 16.8 ms at 4K/60Hz and 4.5 ms at 1080p/240Hz with Gaming Mode on; up to 50.2 ms with it off (Optoma's manual) |
- Input LagAK900ST18.1 ms at 4K/60Hz; 4.8 ms at 1080p/240HzZK810TST16.8 ms at 4K/60Hz and 4.5 ms at 1080p/240Hz with Gaming Mode on; up to 50.2 ms with it off (Optoma's manual)
Software
| Spec | AK900ST | ZK810TST |
|---|---|---|
| Golf Features | Golf Mode 2.0, Auto Screen Fit 2.0 (flat and curved screens; automatic under 13.1 ft from the screen, Smart Warping beyond), autofocus, Golf Scene Memory (5 profiles) | — |
- Golf FeaturesAK900STGolf Mode 2.0, Auto Screen Fit 2.0 (flat and curved screens; automatic under 13.1 ft from the screen, Smart Warping beyond), autofocus, Golf Scene Memory (5 profiles)ZK810TST—
Requirements
| Spec | AK900ST | ZK810TST |
|---|---|---|
| Throw Distance | — | 100 in at about 4.7–5.4 ft, from the ratio |
- Throw DistanceAK900ST—ZK810TST100 in at about 4.7–5.4 ft, from the ratio
Room planner
See each one in your sim room.
The planner draws each unit to scale with your room and your swing: where it mounts, the throw it needs, and whether your shadow crosses the light. Put in your room once, then switch units in the planner to compare.
Persona fitWho each one is better for
Who each one is better for
Honest persona fit, side by side.
Better for AK900ST
- Performance Seeker
Bright enough for data review with the lights on, 18 ms of lag at 4K, and Auto Screen Fit to keep the image square on the screen without a calibration session.
Both fit
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