Connectivity & Usability
The sensor is charged using the included cradle and USB cable for charging either through your computer or a mobile device charger. The mounting system is where the Sony has a leg up on its closest competitors. You simply remove the trap door from your compatible Yonex, Wilson, Prince or Head frame and snap in the included adapter ring. The sensor then mounts to the adapter and locks into place with a solid “click.” Mounting is extremely solid and it is highly unlikely the sensor will be jarred loose. The low profile design of the sensor also keeps it from being obtrusive. I grip fairly low on the handle and noticed it contacting the palm of my hand a couple times but never in a bothersome way.
Another benefit of the slim design and mounting system is the much lower overall weight that players are adding to the butt end of their racquet. The sensor and mount only add roughly 8 grams and while that may impact the balance point a bit, it is not nearly as noticeable as other options on the market. I found the weight a pretty easy trade off for being able to move the sensor around to different racquets rather than being locked into one specific model.
When reviewing your hitting data, you are presented with an overview of your shots broken into a sort of pipe chart for how many of each shot were performed. From there you can drill down into the specifics for each shot type. Each shot shows a heat map of where on the string bed you were making contact. The heat map style visual is a cool way to gauge your overall timing and accuracy with each shot. You can also see the level of spin on the shot. Spin is displayed as a rating between -10 (maximum slice) and 10 (maximum topspin). Also displayed are your swing speed and ball speed (either km or mph). All three categories are displayed as a line graph of your shot history including overall average, maximum and minimum.
The Live Video Mode is one of the best features the Smart Tennis Sensor has to offer. During live data collection, you have the option to record the session and have the data synced to every shot recorded on video. You can then review the video and even have the app break the video apart by shot type. Each time a shot is about to be struck on the recording, the app displays all of the data collected for that shot. Find a shot you want to be able to replicate? You can utilize slow motion to break the shot down and a companion app called Motion Shot to create a frame by frame breakdown of any individual stroke. This feature is an incredibly powerful coaching tool for identify proper mechanics and being able to reinforce them. In future updates, I hope they would find a way to allow narration of the videos and/or be able to draw on them like a tele-strator for enhance coaching. Don’t expect to be able to video any marathon matches though. Sony lists only 90 minutes of battery time when in Live mode and about 180 minutes in offline memory mode. Players will definitely want to be sure the sensor is fully charged before they take the court each time.
About the Reviewer: Matt Locke currently serves as the Junior Programs & Development Coordinator for USTA-Idaho and is an active USTA League and Tournament player.