ZK521ST-B
- Projector
- Built for home & commercial
- Native 4K UHD (3840x2160)
- 5,000 lumens
- Throw ratio 0.79
- Laser light source
Specs from the maker’s or seller’s page. Optoma product page.
Price check · is it cheaper elsewhere? · checked October 1, 2026Same price at all 2 sellers: $2,699. No better deal elsewhere today.Show all 2 sellersHide sellers
- 01Rain or Shine Golf$2,699sameVisit
- 02Shop Indoor Golf$2,699sameVisit
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Compare with the ZK521ST-B
The 5 nearest alternatives by price in golf sim projectors $1,500+, side by side. Highlighted cells differ from the ZK521ST-B; green is better, red is worse.
 This productOptomaZK521ST-B |  BenQAH700ST |  BenQLH860ST |  PanasonicPT-VMZ51SU7 |  BenQLK830ST |  BenQAK700ST | |
|---|---|---|---|---|---|---|
| Lowest price | $2,699 | $2,299 | $2,399 | $2,495 | $2,499 | $2,899 |
| vs this | — | $400 less | $300 less | $204 less | $200 less | $200 more |
| Resolution | 4K | 1080p | 1080p | WUXGA (1920×1200) | 4K | 4K |
| Brightness (lumens) | 5,000 | 4,000 | 5,000 | 5,200 | 4,000 | 4,000 |
| Throw ratio | 0.79 | 0.69-0.83 | 0.5 | 1.09-1.77 | 0.5 | 0.69-0.83 |
| Light source | Laser | Laser | Laser | Laser | Laser | Laser |
| Built for | Home & commercial | Home | Home | Home & commercial | Home | Home |
| Subscription | Not stated | Not stated | Not stated | Not stated | Not stated | Not stated |
| Sellers | 2 | 4 | 1 | 3 | 2 | 5 |
| Cheaper elsewhere? | Same everywhere | Same everywhere | One seller | $60 less at Rain or Shine Golf | Same everywhere | Same everywhere |
| Seller rating | None yet | ★ 5 (2) | None yet | ★ 5 (8) | None yet | None yet |
| Shop | ShopView | ShopView | ShopView | ShopView | ShopView |
Reading these prices
Each price is what that seller showed on its page for this exact model on the date checked. “From” means the page sells several sizes or bundles and we show the lowest. Subscription plans show their billing period. Ratings are the seller’s own, linked to the source; we don’t write or copy reviews.
What isn’t included
Shipping, tax, installation, financing and bundled extras vary by seller. Sellers that only quote are listed without a number. Confirm everything on the seller’s page before you buy.
Fitting out a venue?
Bars, lounges, clubs and hotels: get an installed quote for one bay or ten.