Apple Watch App for sailing, wing foiling & windsurfing
On your wrist with KnotNow
Track your next sail on Apple Watch. KnotNow captures speed, distance, time, and bearings in real time—whether you are sailing, winging, wing foiling, or windsurfing.
Built for clear, effortless recording on the water, KnotNow on Apple Watch syncs seamlessly with your phone and web dashboard for powerful post-session analytics.
How to Record a Session
-
Install
Download the latest KnotNow from the App Store on your iPhone — the Apple Watch app installs with it. Open KnotNow on your Watch after pairing. -
Enable Health & GPS
Allow Health and Location permissions when prompted so the app can track your workout and capture your GPS path. -
Start & Sail
Tap Start and glance at your wrist to check out live speed, total distance, elapsed time, and heading.
On-Watch Displays
Stay focused on the water with live metrics:
- Speed: Current and max speed for your session
- Distance: Total distance sailed
- Time: Elapsed workout time with active GPS recording indicator
- Bearing: Live heading in degrees and cardinal directions
- Units: Switch effortlessly between knots/NM, km/h/km, or mph/mi
Post-Session Insights
Hit Save on your Watch — the session transfers to the KnotNow iPhone app automatically. When you are signed in and online, it uploads the same way as a phone recording (no GPX export). Then open KnotNow on mobile or web for VMG analysis, polar charts, tack and gybe breakdowns, and your complete logbook.
Already record with Strava? Connect Strava in KnotNow — new wind, foil, and sail activities import when you open Sessions.
Also sailing on Garmin? See the KnotNow Garmin watch app.