Mares Sirius Hunter Dive Computer

Rugged Construction for Underwater Hunting
Built for demanding underwater environments, this spearfishing dive computer combines reinforced construction, high resistance materials, and tactile buttons for dependable operation during freediving and underwater hunting sessions. Developed for passionate spearfishers, the durable design supports reliable use in varying underwater conditions while maintaining streamlined handling and practical accessibility.

Clear Visibility with Intuitive Controls
A large 1.3" (33mm) mineral glass display with chip on glass technology provides clear underwater readability and improved visibility during dives. The simple 2 button menu system allows fast navigation through settings and dive information, even while wearing gloves. Daily watch functions including date, time, alarm, and time zone support convenient everyday wear beyond diving activities.

Advanced Freediving and Training Functions
Designed for apnea training and deep freediving sessions, this freediving computer features advanced deep sequential alarms developed for equalization techniques together with dedicated pool training functions. Chrono, countdown timer, lap timer, and silent mode support focused training sessions with minimal distractions underwater. The detailed freedive logbook records up to 10 hours of dive profiles using a 0.5 second sampling rate for accurate performance tracking and review.

Bluetooth Connectivity with Long Runtime
Bluetooth connectivity allows firmware updates, dive uploads, and graph review directly through the Mares/SSI App on a smartphone. A user replaceable CR2450 battery provides approximately 200 to 300 hours of operation for extended use between replacements. Interchangeable strap compatibility allows optional bungee setup customization, giving this apnea dive computer added flexibility for different diving preferences and equipment configurations.

Watch Style
Compact, wearable convenience, combining daily watch functionality with advanced dive monitoring, travel ease, and a stylish, discreet design.

User-replaceable Battery
User-replaceable batteries allow quick, convenient changes anywhere, keeping your dive computer ready to use.

Connectivity
Built-in Bluetooth connects to the Mares app for effortless dive uploads, detailed logbook tracking, and automatic firmware updates.