ARMdevices.net

Platysens shows their “SEAL” finger-mounted sensors that are meant to help swimmers improve techniques. The force used against the water by the swimmer’s hands as well as the path of the hands made as the swimmer proceeds along a path, are both calculated and recorded inside the device. Battery life is rated for 3 hours and price is US$150 for a pair. “Marlin” is a “swim meter” that involves a small unit strapped to the head, with a single earphone plugged into the swimmers ear. It reads out loud the lap time after a lap is done.