The main features of the Sirius are:

• ZH-L16C algorithm with gradient factors and predictive multigas
• Nitrox and trimix capable, up to 5 gases
• MIP color, high-resolution display
• Full tilt digital compass with bearing memory and stopwatch
• Hoseless tank data integration for up to five transmitters
• Color coded tank pressure for at-a-glance readability
• Bottom timer mode with resettable average depth and stopwatch
• Decompression dive planner with additional surface interval function
• 100 dive logbook with multiple graphs
• Tissue saturation and dive profile graph
• Smart battery management system with 30 hours dive time per full charge (without the use of the transmitter)
• Bluetooth connection for direct connection to a smartphone
• Underwater menu allows certain settings to be changed during the dive
• Future deco and runaway deco alarm
• Three watch faces plus color options
• Changeable strap for use with any wetsuit thickness
• Wireless charging base