HEAD Tennis Sensor
Tech specs 
Dimensions
Weight7 grams
Battery life5 - 6 hours tracking time, 3 weeks battery standby, magnet charging
Water resistanceYes
Internal memory
Display
Sensors
Smart watch compatible
RemovableYes
Compatible brandsHead. Compatible with Graphene XT and Graphene Touch racquets.
Metrics 
Power
SpinYes
Impact locationYes
Number of shotsYes
Shot typeForehands, backhands, slices, volleys, serve, smash
Spin type
Swing speed
Ball speedYes
Live trackingYes
Video function4D serve animation
OtherFour modes of use: play, train, compete and 3D serve.
Links 
Affiliate link*Amazon
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