Halcyon Symbios HUD

The Halcyon Symbios HUD dive computer is ideal for divers seeking hands-free monitoring via a sophisticated Head-Up Display. It will meet the requirements of expedition, rebreather, professional and military divers, and underwater photographers and videographers.

The Symbios HUD will help any diver concentrate on their dive instead of constantly monitoring a wrist computer.

When mounted to a mask, this HUD is comfortable and lightweight. Its clear information is readily available to CCR and Open-Circuit divers without the need to check a handset.

The Symbios HUD can be used alone, in conjunction with the Symbios Handset or Tank Pod, or as part of a complete set consisting of the Handset, Pod, and HUD. It has very similar functionalities to the handset, and all the screens are familiar, allowing easy access to the same information—but in a nice, small form factor. 

Together with the Symbios Handset, the HUD and handset are the core of Halcyon’s Symbios Technology, an ecosystem designed to enhance your diving experience with advanced features and prepare you for today’s adventures and tomorrow’s challenges.

The Symbios HUD is a small form factor multi-gas dive computer that uses the ZHL16-C algorithm with adjustable gradient factors. It can accommodate up to five gases for Open-Circuit diving, fixed or integrated CCR, Integrated Sidemount, and Gauge modes.

The Symbios HUD is depth-rated to 120 metres and operates on a rechargeable Li-ion battery, providing up to 12 hours of runtime with five brightness levels. Similar to the Symbios handset, the unit also displays the normal maximum average for any dive, CO2 levels, and the CNS and OTO accumulations, along with the gradient factor.

The Symbios HUD's  TFT Full-colour display offers a virtual image of ~ 20x20cm2 at a distance of 70cm with a screen resolution of 240x240. 

Symbios HUD Key Features:

Best Suited For: Discriminating divers looking for a future-proof scalable device

• Highlights: Industry-leading, wireless technology receives wide-ranging data sources from RB, DPV, HP, GPS/ Positioning systems, Trim and more. Rechargeable battery.
• Dive Modes: Multi-gas, OC, fixed or integrated CCR, Integrated Sidemount, Gauge, Buddy Screen, Large-format screen options.
• Number of Gases: 5 OC/CC
• Algorithm: ZHL16-C
• Screen Resolution: 240 x 240
• Display Type: TFT full colour micro-display
• Display Size: Virtual image of 20x20cm at 70cm distance
• Battery Type: Rechargeable Li-ion Battery
• Battery Life: Up to 12 Hours with 5 Brightness levels
• Dive Log Capacity: 5s rate 1000h
• Depth Rating: 120m
• Vibration: -
• Air Integration: Tank Pod with built-in trim sensor
• Number of Transmitters Supported: Up to 9
• Bluetooth: Yes
• Interface: 2 Tactile response buttons
• Compass: 3-Axis, tilt-compensated, digital and rose formats
• NDL Planner: No
• Deco Planner: No
• Firmware Updates: Yes
• Current Languages: English, German, Korean, Chinese
• Mounting: Mask clamp
• Accessories: Symbios Charging cable 
• Dimensions: 68.3x62.5x36.1 mm3

Download the Halcyon App for Comprehensive Support

Download and register on the Halcyon App. Stay ahead of the crowd and dive into something special!

• App Store
• Play Store

Community-Driven App

Gain unparalleled control over your device with an app supported by a vibrant user community.

Share and Grow

Dive deeper into your experiences by sharing profiles and tips, all while benefiting from regular app-based firmware updates.

Tailored Experience

You can customise settings based on your user profile, manage gas libraries, and receive personalized support through an integrated chat feature.

Dry-Dive Capability

Test and simulate dives in real-time with your Symbios Handset / HUD before entering the water.