Zepp Tennis Swing Analyser
Tech specs 
DimensionsSensor: 28mm x 28mm x 11mm (L x W x H)
Pro mount: 34mm x 31mm x 16mm
Flex mount: 33mm x 33mm x 46mm
Weight7.7 grams
Battery life5.5 hours
Water resistanceCan function with light water exposure.
Internal memoryFlash Storage (holds up to 2,000 swings).
Displayvia smartphone.
SensorsDual accelerometers, 3-axis gyroscope
Smart watch compatibleNo
RemovableYes
Compatible brandsAll
Metrics 
PowerYes
SpinYes
Impact locationYes
Number of shotsYes
Shot typeForehand, backhand, serve, overhead.
Spin typeTop spin, slice, flat.
Swing speedYes
Ball speedYes
Live trackingYes
Video functionSee your serve instantly in 360 Degree from any angle in 3D Serve Mode.
OtherInstant Analysis: Instantly evaluate where your game improved or what needs work after every match or practice session.
Intensity Score: Track your active time on the court and total shot count to determine the intensity of your practice session or match.
Serve Timing: Measure the backswing and impact time of your serve to improve both consistency and power.
Links 
Affiliate link*Amazon
Read moreReview
*Disclosure: We are a professional review site that receives a small commission from sales of certain items, but the price is the same for you. See our affiliate disclosure page for more details.
**All tech specs and images on this page come from manufacturers. These may change over time as manufacturers sometimes update their devices. While we cannot guarantee absolute accuracy of information on this page, we promise to review this content regularly and do our best to bring you the most up-to-date information. To be absolutely sure of tech specs of a particular device, we recommend checking the manufacturer’s website.