Comparison
AH500ST vs ZH451ST
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A side-by-side look at how the BenQ AH500ST and Optoma ZH451ST compare on specs, accuracy, room requirements, and price. No hype — just the parts of the decision a buyer actually weighs.
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More comparisons with the AH500ST and ZH451ST
Buy AH500ST
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Prices confirmed Nov 10, 2026 · we check every retailer daily
Buy ZH451ST
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 | AH500ST | ZH451ST |
|---|---|---|
| Resolution | 1080p Full HD | 1080p (1920×1080) |
| Lumens | 4,000 ANSI | 4,200 (ISO 21118) |
| HDR | HDR10, HLG | — |
| Color | 83% Rec. 709; Golf picture mode | — |
- ResolutionAH500ST1080p Full HDZH451ST1080p (1920×1080)
- LumensAH500ST4,000 ANSIZH451ST4,200 (ISO 21118)
- HDRAH500STHDR10, HLGZH451ST—
- ColorAH500ST83% Rec. 709; Golf picture modeZH451ST—
Hardware
| Spec | AH500ST | ZH451ST |
|---|---|---|
| Light Source | Laser, IP5X sealed (20,000 hours normal, 38,000 eco) | Laser (30,000 hours) |
| Throw Ratio | 0.499 (fixed, very short) | 0.496:1 (fixed) |
| Offset | — | 116% (±5%); no lens shift |
| Dimensions | — | 10.79 × 8.5 × 4.49 in (W × D × H) |
- Light SourceAH500STLaser, IP5X sealed (20,000 hours normal, 38,000 eco)ZH451STLaser (30,000 hours)
- Throw RatioAH500ST0.499 (fixed, very short)ZH451ST0.496:1 (fixed)
- OffsetAH500ST—ZH451ST116% (±5%); no lens shift
- DimensionsAH500ST—ZH451ST10.79 × 8.5 × 4.49 in (W × D × H)
Performance
| Spec | AH500ST | ZH451ST |
|---|---|---|
| Input Lag | 33.4 ms (1080p/60Hz); 16.7 ms (1080p/120Hz) | — |
- Input LagAH500ST33.4 ms (1080p/60Hz); 16.7 ms (1080p/120Hz)ZH451ST—
Requirements
| Spec | AH500ST | ZH451ST |
|---|---|---|
| Throw Distance | — | 100 in at about 3.6 ft (Optoma's manual) |
- Throw DistanceAH500ST—ZH451ST100 in at about 3.6 ft (Optoma's manual)
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 AH500ST
- Space-Constrained
0.499 throw, among the tightest in BenQ's golf line (the LK830ST is 0.496): a 10-ft-wide image from about 5 ft, which suits a low or shallow room.
- Cost-Effective Buyer
Golf-dedicated laser features (Golf Mode, IP5X seal, 4,000 lumens) at $1,999 — strong dollar-per-feature when the room geometry needs the tight throw anyway.
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We ask about your budget, your room, and how you’ll use it. We return a complete build — launch monitor, mat, enclosure, projector, software, PC — with the reasoning behind every pick and the alternatives we considered.