Table 6.

Accelerometer and gyroscope combinations in Zepp wearable for different sport applications; data taken from Zepp [73].

Zepp Play	Accelerometer Type	Gyroscope Type	Position	Sport Specific Attributes Tracking
Football	3 axis accelerometers	3 axis gyroscopes	Calf	Sprints, Distance, Kicks, Top speed, Loads
Baseball	Dual accelerometer	Dual 3 axis Gyroscope	Handle of Bat	Bat speed, Accuracy, projectile, hand speed, attack angle, vertical angle, time to impact
Golf	Dual Accelerometer	3 axis gyroscopes	Top of glove	Club speed, Hand plane, Downswing, Backswing, hip rotation, Tempo ratio
Tennis	Dual accelerometer	Dual 3 axis gyroscope	Handle of racket	Ball speed, ball spin, serve, forehand/backhand, topspin, drive, active time, calories, slice