None of the Aktiia Bracelet G1 versions IP33 or IP67 are suitable for swimming, scuba diving, water skiing, jet skiing, and other water-related activities. The Aktiia bracelet should not exposed to water at high velocities.
The IP68 version is not suitable for diving or snorkeling, immersion under pressurized water or high velocity water.
Please refer to the following article to view more details or to the User Manual
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Understanding Your Aktiia Bracelet’s Water Resistance