If you’re looking for a watch-size dive computer that doesn’t compromise on performance, the Suunto Nautic S Dive Computer deserves your full attention. Designed for scuba divers and freedivers who embrace every underwater moment, Nautic S blends serious dive capability with everyday wearability—without the bulk.
Built on Suunto’s long heritage of dive innovation and designed and made in Finland, Nautic S is compact, powerful and intuitive. It’s equally at home on your first open-water dives as it is supporting advanced multi-gas profiles, sidemount setups, and air-integrated scuba. One device, many paths—ready to grow as your diving does.
Built to Endure – Compact Design, Proven Reliability
Underwater, reliability isn’t optional. Nautic S is engineered for consistent performance dive after dive, even in demanding conditions. The construction is robust and pressure-resistant, the sapphire crystal protects a bright AMOLED screen, and the elastic textile strap delivers comfort over bare wrist, wetsuit or drysuit.
The result is a compact dive computer that feels secure and readable at depth—without feeling oversized on land. It’s a true daily-wear option that transitions seamlessly from dive boat to dinner.
Highlights that matter underwater:
- Durable construction tested in Finland
- Bright AMOLED display for superior readability
- Comfortable elastic textile strap with excellent flexibility
- 100 m water resistance (rated for dives up to 80 m)
Power That Lasts Beyond the Surface
Long dive days and multi-day trips demand dependable battery life. Nautic S delivers up to 40–60 hours of dive time on a single charge, depending on usage and settings. Between adventures, standby mode stretches to up to 26 days, so your dive computer is always ready when you are.
Rechargeable lithium-ion power means no last-minute battery swaps, while intelligent reminders help you stay ahead of charging before big trips.
Battery performance at a glance:
- Rechargeable lithium-ion battery
- 40–60 hours in dive mode
- Up to 26 days standby in daily use
- Smart charge notifications
Made for Every Dive and Every Diver
The Suunto Nautic S Dive Computer adapts to your diving—not the other way around. Whether you’re a recreational diver, freediver, or progressing into technical profiles, Nautic S offers the modes and flexibility you need without overwhelming complexity.
It supports air, nitrox, freedive and gauge modes, with the ability to manage up to five gases (O₂ 21–100%). Gas switching, decompression planning, and customisable displays ensure the information you need is front and centre—exactly when you need it.
Dive capabilities include:
- Air, Nitrox, Freedive and Gauge modes
- Up to 5 gases (O₂ 21–100%)
- Gas switching and deco planner
- Suunto Bühlmann 16 GF decompression model
- Personal gradient factor adjustment
- Customisable dive views, alarms and layouts
This balance of ease-of-use and depth makes Nautic S a strong choice for recreational divers who want room to grow—without having to upgrade again later.
Real-Time Awareness with Wireless Precision
Air integration transforms how you dive, and Nautic S delivers it cleanly and intuitively. When paired with the Suunto Tank Pod, tank pressure and gas consumption data are displayed directly on your wrist in real time.
For sidemount divers, dual transmitter support allows you to monitor both cylinders effortlessly. Colour-coded visuals make it easy to interpret information at a glance, reducing task-loading and increasing awareness throughout the dive.
Air-integrated features:
- Wireless tank pressure readings
- Dual transmitter support for sidemount
- Real-time gas time and consumption
- Clear colour-coded visuals
- Compatible with Suunto Tank Pod
Awareness Below and Above the Surface
Nautic S goes beyond being “just” a dive computer. Integrated outdoor tools help you plan and navigate safely—before, during and after your dive.
Built-in GPS and offline maps assist with entry and exit planning, while tide data, weather information and sunrise/sunset times add valuable context for shore and boat dives alike. A digital compass with tilt compensation keeps underwater navigation confident and precise.
Navigation & planning tools:
- GPS with offline maps
- Tide, weather and daylight information
- Digital compass with tilt compensation
- Orientation support above and below water
Smarter Connections with the Suunto App
Your dive doesn’t end when you surface. With automatic syncing to the Suunto App, every dive is logged, analysed and stored for the long term.
Review depth profiles, gas usage, routes and conditions, add notes and buddy information, and track your diving history over time. Whether you’re refining technique or reliving great moments underwater, Nautic S keeps everything connected.
App features include:
- Automatic dive log synchronisation
- Detailed dive data analysis
- Route and condition tracking
- Notes, buddy info and lifetime dive history
- Easy sharing and progress tracking
Diving Features Overview
| Diving Function | Specification |
|---|---|
| Maximum operating depth (EN 13319) | 80 m |
| Nitrox (and air) | Yes |
| Freedive | Yes |
| Gauge | Yes |
| Dive time & surface time | Yes |
| No-fly time & safety stop | Yes |
| Ascent time display | Yes |
| CNS/OTU (OLF) calculation | Yes |
| Gas time & real-time consumption | Yes |
| Altitude adjustment | 0–300 m / 300–1500 m / 1500–3000 m |
| Gases | Up to 5 (O₂ 21–100%) |
| Gas max pO₂ | Manual 1.0–1.6 |
| No-decompression planner | Yes |
| Decompression model | Suunto Bühlmann 16 GF |
| Wireless air integration | Yes |
| Customisable dive modes & displays | Yes |
| Personal gradient factors | Low 10–100 / High 50–100 |
| Decompression profiles | Continuous and stepped |
| Helium & deco planner | Yes |
Construction & Display
The Suunto Nautic S is built with durability and clarity in mind. A stainless-steel bezel and sapphire crystal protect the screen from everyday wear, while the glass fibre-reinforced polyamide case keeps the watch lightweight without sacrificing strength. The 1.43” AMOLED display delivers a crisp 466 × 466 resolution, remaining bright and legible underwater thanks to an always-on display with automatic brightness adjustment.
Size & Weight
Designed to feel natural on the wrist, the Nautic S measures 49.9 × 49.9 × 13.2 mm and weighs just 81 g. Its compact, watch-size profile makes it comfortable for everyday wear, while the elastic 22 mm textile strap provides flexibility and a secure fit over bare skin, wetsuits, or drysuits.
Battery Performance
Powering the Nautic S is a rechargeable lithium-ion battery built for real dive travel. In dive mode, it delivers approximately 40–60 hours of use, depending on settings and conditions. In daily smartwatch use, it can last up to 26 days in standby, ensuring the device stays ready between dive trips without constant charging.
Dive Alarms & Safety Notifications
Safety information is delivered clearly and without distraction. The Nautic S provides alerts for rapid ascents, decompression ceiling violations, high pO₂ exposure, and CNS/OTU (OLF) limits at both 80% and 100%. It also notifies you of better gas availability, remaining gas time, dive time, no-decompression limits, maximum depth, and tank pressure—helping you maintain full situational awareness throughout the dive.
Connectivity & Smart Features
Connectivity is handled via Bluetooth, allowing seamless pairing with compatible smartphones. Dive logs, settings, and firmware updates are managed through cloud-based systems with automatic over-the-air updates, keeping the computer current without manual intervention. Android users can also send predefined replies to incoming messages directly from the device. The Nautic S is compatible with most common smartphone models.
Suunto Nautic S vs Suunto Nautic
Both models share the same core dive and navigation DNA, but they’re built for slightly different users.
| Feature | Suunto Nautic | Suunto Nautic S |
|---|---|---|
| Display | 3.26” (largest on the market) | 1.43” AMOLED |
| Dimensions | 101.34 × 65.8 × 26.2 mm | 49.9 × 49.9 × 13.2 mm |
| Weight | 227–232 g | 81 g |
| Dive Battery Life | Up to 120 h | Up to 60 h |
| Water Resistance | 200 m | 100 m (rated to 80 m) |
| Best For | Dedicated technical divers | Divers seeking compact, wrist-friendly everyday wear |
If you want maximum screen size and endurance, Nautic delivers. If you want compact, watch-size versatility without sacrificing capability, Nautic S is the clear choice.
Why Choose the Suunto Nautic S Dive Computer?
The Suunto Nautic S Dive Computer strikes a rare balance: serious dive performance in a compact, everyday-wearable form. With air integration, a bright AMOLED display, advanced decompression modelling and powerful navigation tools, it supports your diving now—and grows with your ambitions as you progress.
It’s a dive computer you won’t outgrow, and one you’ll actually want to wear every day.
FAQs
Is the Suunto Nautic S suitable for beginners?
Yes. It’s intuitive and easy to use for new divers, while offering advanced features you can unlock as your skills grow.
Does it support air integration?
Yes. Nautic S supports wireless air integration with the Suunto Tank Pod, including dual transmitters for sidemount diving.
Can I use it for freediving?
Absolutely. Dedicated freedive mode makes it ideal for breath-hold training and recreational freediving.
How many gases can it manage?
Up to five gases, with oxygen percentages from 21–100%, including gas switching and deco planning.
Is it comfortable for everyday wear?
Yes. At just 81 g with a compact case and elastic textile strap, it’s designed to be worn daily.
A Legacy of Exploration and Precision
Suunto’s story begins in 1936 with Finnish inventor Tuomas Vohlonen, who pioneered a breakthrough in compass technology that was stronger, steadier, and more accurate than anything available at the time. Over nearly a century, Suunto has continued to innovate across diving, sports, and outdoor instruments, from the first diving compass SK-4 in 1965 to the world’s first watch-sized dive computer, the Suunto Spyder, in 1997. Today, the Suunto Nautic continues this tradition, blending decades of expertise with modern technology for divers worldwide.
At Mike’s Dive Store, we’re proud to offer the full range of Suunto dive computers, including the latest Nautic S. Whether you’re a recreational diver, a technical diver, or just starting your underwater adventures, our knowledgeable team can help you find the perfect device for your needs. Pre-order the Nautic S today and experience why Suunto remains the trusted choice for divers across the globe.
Ready to Dive Smarter?
The future of compact, air-integrated diving is here. Pre-order the Suunto Nautic S Dive Computer today at Mike’s Dive Store and be among the first to experience next-generation performance in a truly wearable dive computer. Dive confident. Dive connected. Dive ready.
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