Suunto Nautic S Dive Computer

The Suunto Nautic S Dive Computer is designed for divers and freedivers who want reliability, clarity, and control on every dive. Compact yet powerful, Nautic S combines advanced dive technology, everyday wearability, and trusted Finnish craftsmanship in a single, wrist-friendly design that grows with you - from your first open-water dives to advanced multi-gas and sidemount adventures.

Designed and made in Finland and built on Suunto’s long dive heritage, the Nautic S is ready for every dive and every diver.

Power That Lasts Beyond the Surface

When your adventures span multiple dives and days, endurance matters. Suunto Nautic S delivers up to 40–60 hours of dive time on a single charge, making it ideal for long dive weekends and remote trips. In daily use, it can last up to 26 days in standby mode, keeping you ready between dives.

Dive Capabilities

• Air, Nitrox, Freedive and Gauge modes
• Up to 5 gases (O₂ 21–100%)
• Gas switching and deco planner
• Suunto Bühlmann 16 GF decompression model
• Customisable dive modes, displays and alarms
• Personal gradient factor adjustment

Key Specifications

Construction & Display:

• Bezel: Stainless steel
• Glass: Sapphire crystal
• Case: Glass fibre reinforced polyamide
• Display: 1.43” AMOLED, 466 × 466 resolution
• Always-on display with automatic brightness

Size & Weight:

• Dimensions: 49.9 × 49.9 × 13.2 mm
• Weight: 81 g
• Strap: Elastic textile, 22 mm width

Battery:

• Rechargeable lithium-ion
• Dive mode: 40–60 h
• Daily use (standby): Up to 26 days

Dive Alarms and Notifications:

• Too fast ascent: Yes
• Decompression ceiling violation: Yes
• CNS/OTU (OLF) 80% / 100%: Yes
• Switch gas (better gas is available): Yes
• Gas time: Yes
• Dive time: Yes
• High pO2 (hyperoxic): Yes
• Maximum depth: Yes
• Tank pressure: Yes
• NDL: Yes

Connectivity:

• Connectivity (between devices): Bluetooth
• Send predefined replies to incoming messages from watch: Android only
• Watch software updates from cloud: Yes
• Automatic over the air software updates: Yes
• Smartphone compatibility: Most common models supported