Mares designed the Sirius watch-style dive computer with the aim of perfectly combining technology and elegance. The characteristics of this dive computer feature top-of-the-range technology both for the recreational and Extended Range divers. The recreational diver can see a simple screen, with the possibility of reading tank data thanks to the optional tank module. The Extended Range diver can insert up to five nitrox and trimix mixes to manage technical dives. The interchangeable strap allows the Extended Range diver to use any suit thickness. Its refined style makes the Sirius the perfect accessory, even out of the water. Available in black or black/silver versions.

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