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The GPS Swim Meter

Combining GPS*, Motion Sensors and Voice Technology, Marlin provides realtime audio feedback to swimmers.  Important swimming parameters such as lap time, stroke rate and even navigation* information are provided instantly to swimmers without disrupting the swimmers' motion.  The bone conduction headset allows for clear and crisp audio feedback even under water.

The Marlin is a 2017 CES Innovation Awards Honoree and was successfully launched on Kickstarter in August, 2016.


IPX8 (1.5m/30min)

Rechargeable Battery

Lithium Polymer (5 hours Open Water Mode*/ 10 hours Pool Mode)


Bluetooth Low Energy for low power synchronization

Bone Conduction

Speech optimized earpiece uses bone conduction for clear audio feedback under water


Global Positioning System module provides accurate tracking and navigation for open water mode*


Main Unit (61.5mm x 39mm x 18.5mm) Weight (27g)


Know your pace


Define your route by selecting waypoints in the App. Synchronize the waypoints to Marlin through the App.

The Marlin is ideally positioned for great satellite reception. When you swim, Marlin uses voice feedback to guide you to your destination.

After your swim, synchronized your data to the Marlin App and share your favourite routes with friends.

Training Programs

Having a hard time remembering your training program? Let Marlin help you!

Store your training programs in Marlin and just swim. Marlin supports step-based stroke rates, rest time, on-time and target stroke rates with 5 sound effects.

Stop thinking about the next step and enjoy your swim. Marlin will walk you through every step in your training program. Press play to listen to your program.

Platform Connections