All Abbot Libre sensors are fully waterproof. I go swimming 3 times a week and put nothing on top. One word of caution: I can only swim backstroke when I wear my Abbot Libre on my "inside" arm. When my sensor arm touches the lane rope even slightly, the sensor is ripped out. All other swim styles work fine.
All Abbot Libre sensors are fully waterproof. I go swimming 3 times a week and put nothing on top. One word of caution: I can only swim backstroke when I wear my Abbot Libre on my "inside" arm. When my sensor arm touches the lane rope even slightly, the sensor is ripped out. All other swim styles work fine.