The Mares SIRIUS HUNTER is an extremely rugged spearfishing computer designed for those who love the sea. It combines superior durability, intuitive two-button controls, and advanced freediving features—including sequential depth alarms, pool training mode, and Bluetooth connectivity—to ensure performance and reliability dive after dive.

SIRIUS HUNTER – The ultimate computer for spearfishing and freediving
Designed by Mares for the most passionate spearfishermen, the SIRIUS HUNTER is a solid and reliable dive computer capable of delivering high performance in any environment. Its rugged construction, advanced features, and intuitive operation make it the ideal companion for both pool training and open-water adventures.
Main features

• Ultra-durable construction: reinforced case, high-strength materials and tactile buttons, to face any condition.
• Large 1.3" (33 mm) mineral glass display with chip-on-glass technology for optimal readability.
• Simple two-button menu: quick and intuitive navigation, even when wearing gloves.
• Functions dedicated to freediving and swimming training: stopwatch, countdown, lap counter, silent mode for maximum concentration.
• Sequential depth alarms: Designed to support advanced depth compensation techniques.
• Complete freediving logbook: up to 10 hours of recording with sampling every 0.5 seconds and graphical analysis via the Mares/SSI app.
• Bluetooth connectivity: for firmware updates, log uploading, and direct smartphone analysis.
• User-replaceable CR2450 battery: 200 to 300 hours of use.
• Interchangeable straps: Also compatible with bungee (sold separately).
• Daily watch functions: date, time, alarm and world time.

Whether you want to improve your freediving performance or explore deep-sea fishing, the SIRIUS HUNTER ensures precision and reliability on every dive. Developed and tested by real spearfishermen, it embodies the Mares "Innovation with Purpose" philosophy: technology designed to strengthen your connection with the ocean.