1) Babolat PlaySensors inside the racket ($399) monitor swing motion and power; frame vibrations also indicate where shots connect with the racket face. The handle also includes a gyroscope, accelerometer, battery, and Bluetooth radio.
2) 94Fifty Smart Sensor BasketballThe regulation-size ball ($295, est.) tracks metrics including dribble control, shot speed, and basket-entry angle.
3) Kayak Power MeterOne Giant Leap, a New Zealand company, developed the Kayak Power Meter ($999) to record a rower’s cadence.
Source: www.popsci.com By David Cassilo