ZK431ST-B
- Projector
- Built for home
- Native 4K UHD (3840x2160)
- 4,100 lumens (ISO 21118)
- Throw ratio 0.496
- 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: $1,799. No better deal elsewhere today.Show all 2 sellersHide sellers
- 01Rain or Shine Golf$1,799sameVisit
- 02Shop Indoor Golf$1,799sameVisit
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Compare with the ZK431ST-B
The 5 nearest alternatives by price in golf sim projectors $1,500+, side by side. Highlighted cells differ from the ZK431ST-B; green is better, red is worse.
 This productOptomaZK431ST-B |  BenQAH500ST |  BenQTK710STi |  BenQAH700ST |  BenQLH860ST |  PanasonicPT-VMZ51SU7 | |
|---|---|---|---|---|---|---|
| Lowest price | $1,799 | $1,999 | $2,199 | $2,299 | $2,399 | $2,495 |
| vs this | — | $200 more | $400 more | $500 more | $600 more | $696 more |
| Resolution | 4K | 1080p | 4K | 1080p | 1080p | WUXGA (1920×1200) |
| Brightness (lumens) | 4,100 | 4,000 | 3,200 | 4,000 | 5,000 | 5,200 |
| Throw ratio | 0.496 | 0.499 | 0.69-0.83 | 0.69-0.83 | 0.5 | 1.09-1.77 |
| Light source | Laser | Laser | Laser | Laser | Laser | Laser |
| Built for | Home | Home | Home | Home | Home | Home & commercial |
| Subscription | Not stated | Not stated | Not stated | Not stated | Not stated | Not stated |
| Sellers | 2 | 5 | 6 | 4 | 1 | 3 |
| Cheaper elsewhere? | Same everywhere | Same everywhere | Same everywhere | Same everywhere | One seller | $60 less at Rain or Shine Golf |
| Seller rating | None yet | None yet | ★ 5 (1) | ★ 5 (2) | None yet | ★ 5 (8) |
| 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.