Apple Watch's flaw swimming on open water!
If you swim breastroke and kepp your arm under water the GPS does not detect the distance and does not update it when the arm comes out of the water. You swim 2 km and Apple Watch can score 1.3 Km!
Garmin in this case wor best beacause update the distance when the arm comes out of the water!
On need an upgrade!!!!
Open Water Swim: GPS will only provide distance when you do a freestyle stroke. Water may prevent a heart rate measurement, but calories will still be tracked using the built-in accelerometer.
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Open Water Swim: GPS will only provide distance when you do a freestyle stroke. Water may prevent a heart rate measurement, but calories will still be tracked using the built-in accelerometer.
Quote from this page;
Swimming on open water
