How Apple Watch helped me hit a hole-in-one on the golf course
Briefly

"The high-frequency motion API connects to the three-axis gyroscope and the accelerometer to detect rapid changes in velocity and acceleration, greatly improving golf training capabilities."
"Golfshot now provides a Swing ID on-range experience that lets you wear your Apple Watch on the driving range, helping you evaluate and improve your shot for each club."
Read at ZDNET
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