Chamber Comparison
Newtowne C4-27vsSummit to Sea Shallow Dive
Newtowne
C4-27
1.3
ATA
$4K
Starting
2yr
Warranty
Summit to Sea
Shallow Dive
1.3
ATA
$8K
Starting
2yr
Warranty
The Bottom Line
The Newtowne C4-27 has clear advantages in price and clinical credibility. However, both chambers sit in the Entry Wellness tier, so consider your specific requirements before deciding.
Key Differences
Newtowne
$4,495 - $5,495
Summit to Sea
$5,000 - $8,000
A significant price gap of ~44%. Consider whether the higher-priced unit's additional features justify the investment for your use case.
Newtowne
5/10
Summit to Sea
4/10
This score reflects published studies, certifications, and clinical adoption. Higher scores indicate stronger evidence backing the manufacturer's claims.
Who Should Buy Which?
Best for
Summit to Sea Shallow Dive
Budget buyers, first-time users, compact spaces
View full details →Full Specification Comparison
| Specification | Newtowne C4-27 | Summit to Sea Shallow Dive |
|---|---|---|
| Chamber Type | Soft-Shell | Soft-Shell |
| Performance Tier | Entry Wellness | Entry Wellness |
| Max Pressure | 1.3 ATA | 1.3 ATA |
| Oxygen Delivery | ambient-air | ambient-air |
| O₂ Concentration | 21% (ambient) | 21% (ambient); optional concentrator |
| Capacity | 1-person | 1-person |
| Weight | 75 lbs | — |
| Interior Dimensions | 27in diameter x 80in length | 26in diameter |
| Portability | portable | portable |
| FDA Cleared | Yes (#K051759) | Yes (#K072757) |
| CE Marked | No | No |
| Made In | United States | United States |
| Price | $4,495 - $5,495★ | $5,000 - $8,000 |
| Warranty | 2 years | 2 years |
| Clinical Score | 5/10★ | 4/10 |
| Brand Established | 2001 | 2007 |
| Climate Control | No | No |
| Communication System | No | No |
| Emergency Features | Dual zipper safety, pressure relief valve, interior/exterior controls | Dual zipper safety system |
Newtowne C4-27 — Standout Features
Summit to Sea Shallow Dive — Standout Features
Interested in either chamber?
Request quotes from both manufacturers and compare real pricing.
Request Quotes →Related Comparisons
Macy-Pan ST801
vs
Newtowne C4-27
Macy-Pan ST801
vs
Summit to Sea Shallow Dive
Airvida Chair Pro
vs
Newtowne C4-27
Airvida Chair Pro
vs
Summit to Sea Shallow Dive
Airvida OxyPro 28
vs
Newtowne C4-27
Airvida OxyPro 28
vs
Summit to Sea Shallow Dive
Airvida OxyPro 36
vs
Newtowne C4-27
Airvida OxyPro 36
vs
Summit to Sea Shallow Dive