Swing Star

WHETHER HOLDING A BAT, club or racket, the power is all in the swing. How the ball flies comes down to the relationship between form and contact, a pattern easy enough to attempt but more difficult to master. For athletes in search of high-tech help, the Zepp sports sensor tracks every movement to provide detailed analysis no human coach could match. The small device attaches to a baseball bat, tennis racket or golf glove and connects with a smartphone app to record speed, power, intensity and consistency. Zepp also creates a 3D map of the swing path and evaluates areas in need of improvement. The flash memory stores up to 2000 swings, ensuring players can track their progress and assess results. $149; zepp.com