Halcyon Symbios

Coming Soon! 

The Halcyon Symbios™ is a next-generation chest-mounted closed-circuit rebreather (CCR) designed to integrate seamlessly into the way divers explore. 

Compact, streamlined, and engineered for unmatched work-of-breathing in all positions, Symbios™ empowers divers to go further, stay longer, and experience the underwater world with new clarity.

Engineered for Exploration

The Halcyon Symbios™ Rebreather combines innovation, safety, and streamlined design. With redundant wireless communication, hybrid O₂ sensing, and a patented BOV/ADV system, it delivers excellent breathing performance and intuitive alerts. Its modular, travel-friendly build is compact yet powerful, offering easy trim, large CO₂ capacity, and seamless connectivity across the Symbios ecosystem for exploration without limits.

Specifications

Key Highlights

• Sleek, ultra-slim design that’s lightweight and unobtrusive

• Transflective color display for excellent readability in all light conditions

• Responsive tactile buttons for confident use underwater

• Rechargeable battery (~40 hours runtime) for extended dive trips

• Clean, easy-to-read interface with customizable layouts

• Numerous customizable parameters to suit diver preference

• Constant evolution with regular firmware upgrades

• Powerful Symbios App integration, extending features and logs

• Scales with a diver’s needs, from recreational to expeditionary use

Built for Modern Divers

• Streamlined Performance: A low-profile chest design that improves trim, comfort, and accessibility.

• Advanced Safety: Dual sensing (electrochemical + GreenFlash™ digital O₂), tactile vibration alarms at the chest, and bold visual alerts for critical conditions.

• Smart Technology: Adaptive setpoint control, Symbios App pairing for pre-dive checklists, firmware updates, and dive log review.

• Exploration Ready: Designed for both recreational and advanced technical dives, fully EN 14143 compliant.

Handset & HUD Integration

Pair the Symbios™ Rebreather with the Handset or HUD for a fully connected experience. Both are part of the unique Symbios ecosystem, delivering intuitive control and critical dive data at a glance.