OxyHealth Fortius 420 vs Summit to Sea Dive
Specs, prices, editor verdict, and who should buy which - compared side-by-side.
OxyHealth Fortius 420 (ultra premium, $38,000–$45,000) vs Summit to Sea Dive (ultra premium, $18,000–$22,000) - different tools for different jobs (see the per-product details below).
Compared on 4 shared specs · same category (ultra premium).
These are close picks. Both score in the same range. The right call depends on buyer profile - read the per-buyer recommendations below.
Side-by-side specs
| Spec | OxyHealth Fortius 420 | Summit to Sea Dive |
|---|---|---|
| price | $38,000–$45,000 | $18,000–$22,000 |
| chamber type | Hard-shell monoplace (clinical) | Soft-shell (mHBOT) |
| pressure | Up to 3.0 ATA (29 psi) | 1.3 ATA |
| fda status | 510(k) cleared | 510(k) cleared |
| warranty | 5 years | 2 years standard (3-year extension available) |
OxyHealth Fortius 420 also publishes: diameter, occupancy, footprint, ceilingClearance
Who should buy which
Buyers who specifically need hard-shell clinical pressures above the soft 1.3 ATA tier in a single-occupant chamber. Family offices and private suites building a clinical-grade hyperbaric setup.
You only need mild 1.3 ATA HBOT (the soft-shell Vitaeris or Solace are sufficient and far simpler), or you can't accommodate the 12×6 ft + ceiling footprint.
Buyers who want the OxyHealth-equivalent spec at lower price, who don't need the OxyHealth brand premium, or who want a credible second-largest US manufacturer.
You want the largest installed base / dealer network (go OxyHealth) or you specifically need OxyHealth-only accessories.
Go deeper
Frequently asked
Which is better, the OxyHealth Fortius 420 or the Summit to Sea Dive?
They are closely matched on our scoring, so the right pick comes down to your priorities. The verdict and spec table above compare them on price, features, and who each one suits.
How much do they cost?
OxyHealth Fortius 420: $38,000 to $45,000. Summit to Sea Dive: $18,000 to $22,000. Prices are verified against the manufacturer; check the live links for current pricing.
Who should buy which one?
OxyHealth Fortius 420: Buyers who specifically need hard-shell clinical pressures above the soft 1.3 ATA tier in a single-occupant chamber. Family offices and private suites building a clinical-grade hyperbaric setup. Summit to Sea Dive: Buyers who want the OxyHealth-equivalent spec at lower price, who don't need the OxyHealth brand premium, or who want a credible second-largest US manufacturer.