Suunto 3 Fitness - Features - Swimming
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Suunto 3 Fitness User Guide


You can use your Suunto 3 Fitness for swimming in pools.

When you use a pool swimming sport mode, the watch relies on the pool length to determine distance. You can change the pool length as needed under the sport mode options before you start swimming.


The wrist heart rate sensor may not work under water. Use a chest heart rate sensor to get a more reliable HR tracking.