Reliability is everything underwater. Suunto Nautic S is engineered to perform in demanding conditions, dive after dive.
Its durable, pressure-resistant build and bright AMOLED display ensure clear visibility and confidence on each dive. The new elastic textile strap offers superior comfort and flexibility, adapting to every exposure suit and diving condition.
Whether you’re exploring reefs, practicing freediving, or preparing for your next adventure, Nautic S is designed to keep up wherever your dive takes you.

Power that lasts beyond the surface

When your adventure extends across multiple dives, endurance matters. Suunto Nautic S delivers up to 60 hours of dive time on a single charge – more than enough for a long dive weekend or a remote expedition.

Made for every dive and every diver

From your first open-water course to advanced adventures, Suunto Nautic S grows with you and your diving hobby.
It supports single- and multi-gas modes, sidemount configurations and customizable dive views letting you see exactly what you need, when you need it.
Easy to use yet powerful, Nautic S keeps you in control and lets you focus on what diving is truly about: freedom underwater.

 

 

 

 

 

 

 

 

 

 

 

Real-time awareness, wireless precision

Stay informed every moment. Wireless tank pressure support provides real-time gas readings directly on your wrist.
Dual transmitter support enables sidemount divers to follow both tanks with ease, while clear, color-coded visuals keep you instantly aware throughout the dive.

               

Awareness below and above the surface

Plan, time and execute every dive with confidence. Suunto Nautic S combines outdoor tools and navigation data for safety and peace of mind wherever you dive.
Built-in GPS, offline maps, tide- and weather data with sunrise/sunset times help you prepare for your dives and transitions. Together with the digital compass, these tools keep you oriented in all conditions.

Smarter connection, deeper reflection

After each dive, Suunto App extends your experience.
Sync your logs automatically, review detailed data, and relive every underwater route with notes, buddy info and conditions.
From dive planning to sharing your best moments, Nautic S keeps every adventure part of a bigger story: yours.

Unlock more with the Suunto App

 

SPECIFICATIONS

Measurements	49.9 x 49.9 x 13.2 mm / 1.96 x 1.96 x 0.52 “
Weight	81 g / 2.86 oz
Bezel material:	Stainless steel
Glass material:	Sapphire crystal
Case material:	Glass fibre reinforced polyamide
Strap material:	Elastic textile
What’s in the box?	Suunto Nautic S, USB charging cable, Printed user documentation, Scratch guard
Country of manufacture	FI

 

TECHNICAL SPECIFICATIONS

GENERAL

Bezel material:	Stainless steel
Glass material:	Sapphire crystal
Case material:	Glass fibre reinforced polyamide
Strap material:	Elastic textile
Weight	81 g / 2.86 oz
Strap width:	22 mm
Country of Origin	FI
Customizable watch faces	✅
Touch screen lock	✅
Touch display	✅
Color display	✅
Water resistance	100 m
Battery indicator	percentage / icon
Battery type	rechargeable lithium-ion
Firmware upgradable	✅
Time, date	✅
Alarm clock	✅
Dual time	✅
Stopwatch timer	✅
Countdown timer	✅
Vibration alert	✅
Languages	EN, CS, DA, DE, EL, ES, FI, FR, IT, JA, KO, NL, NO, PL, PT, RU, SV, TR, HE, ZH*, TH*, ZHTW*
Backlight	AMOLED
Always-on display	✅
Configurable backlight	automatic brightness
Button lock	✅
Display size	1,43”
Display type	matrix
Display resolution	466 x 466
Metric and imperial units	✅
Automatic daylight saving time	✅

PHYSICAL SPECIFICATIONS

Operating temperature	-20° C to +55° C / -5° F to +130° F
Operating temperature in dive mode	0° C to +40° C / +32° F to +104° F
Storage temperature	-20° C to +55° C / -5° F to +130° F
Recommended charging temperature	0° C to +35° C / +32° F to +95° F

BATTERY LIFE

Intelligent charge reminders	✅
Daily use: Standby time mode only	up to 26 days
Battery life (dive)	40 – 60h

COMPASS

Digital compass	✅
Tilt compensation	✅
Declination correction	✅
Direction scale	✅
Needle	✅
Compass accuracy	5°
Compass resolution	1°
Digital compass during scubadiving	✅

CONNECTIVITY

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

OUTDOOR FUNCTIONS

Offline maps on watch	✅
Outdoor offline map storage	32GB
Satellite systems	GPS, GLONASS, GALILEO, QZSS, BEIDOU
GNSS frequency support	Dual band (L1+L5)
Simultaneous satellite systems	4
Max connected satellites	32
GPS recording rate	Best, Good, OK, Low
Zoom levels in navigation	✅
Breadcrumb trail in real time	✅
Outdoor terrain and satellite maps	✅
Global heatmaps for 20 sports	✅
Route planning with heatmaps	✅
Personal route library synced to watch	✅
Snap to route	✅
Point of Interest (POI) navigation	✅
ETA (estimated time of arrival), remaining distance	✅
GPS track analysis	✅
Track logging, viewing and sharing	✅

WEATHER

Sunrise/sunset times	✅
Storm alarm	✅
Sea level pressure	✅
Automatic alti/baro profile	✅
Temperature	✅
Temperature display range	-20° C to +55° C / -5° F to +130° F
Temperature resolution	1° C / 1.5° F

TRAINING FUNCTIONS

HEART RATE

Heart rate belt compatibility	Bluetooth HR belts

SPORT EXPERTISE

SPORT MODES:

Customizable sport modes and displays	Customizable dive
Graphical displays in sport modes	In dive
Pre-installed sport modes on watch	Dive modes

DIVING FUNCTIONS

FREEDIVING

Depth meter for freedive	80 m
Freedive number	✅
Freedive day history	✅
Freedive total history	✅
Depth notify	✅
Depth alarm	✅
Surface time notify	✅
Dive time alarm	✅

BASIC

Maximum operating depth (EN 13319)	80 m
Nitrox (and air)	✅
Freedive	✅
Gauge	✅
Dive time	✅
Surface time	✅
No fly time	✅
Safety Stop	✅
Ascent time display	✅
CNS/OTU (OLF) calculation	✅
Gas time	✅
Gas consumption (real-time)	✅
Altitude adjustment	0 – 300 m / 300 -1500 m / 1500 – 3000 m
Gases	up to 5 gases (Oxygen 21 – 100%)
Gas max pO2	manual 1.0 – 1.6
Timer	✅
No-decompression planner	✅
Dive history	lifetime
Decompression model	Suunto Bühlmann 16 GF
Wireless air integration	✅
Customizable dive modes and displays	✅
Personal adjustment	Gradient factors low (10-100) and high (50-100)
Decompression profile options	continuous and stepped
Gas switching	✅
Deco planner	✅
Helium	✅

DIVE ALARMS AND NOTIFICATIONS

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