Nice gimmick with some weaknesses

I love this kind of gadgets, it was clear from the beginning that I would buy the Zepp sensor. I had read the Babolat Play bat already tested (http://amzn.to/14tXyrr), wherein the sensor is integrated into the handle. With 300 of the surcharge of 150 per racket (compared to normal Babolat) but mine was too high.

I am a medium-good club player and now playing for about 20 years (with a longer break) Tennis.

But now to the important part, my experience with the Zepp sensor:

EQUIPMENT:

The sensor comes in a relatively send packing. Too much equipment is not going to a manual shall be waived (also not necessary, see below), this is still a USB charging cable. Happy would have me, though an adapter for the socket had been there. So you have to buy this either himself or his charge sensor on the PC (the one on the tennis court with this has rarely :)) Also, of course, is still the rubber mounting thereby to fix the sensor on the racket at all.

ASSEMBLY:

When using the supplied rubber mount, the mount has happened in a few seconds. But then it shows the same, what has already been written here in a review: Really useful can not play with this mount, it's just too bulky and interfere after a few strokes. Therefore I also have the "PRO-Mount" ordered (http://amzn.to/1DCCHll). Here the installation is similarly easy. Simply peel off the foil and attach using the adhesive surface on the racket. After that you should at least wait 24 before you use the bat. Practical: The Mount is one, you have to clip the sensor Wierum.

COMMISSIONING:

The commissioning of the sensor is easy. Just the app on your mobile phone load and install. Then only the sensor must be turned on (important: charge previously). That's just about the only button on the sensor itself. Multiple LEDs indicate then short the current battery status, and shine dannach approximately every 5-10 seconds to signal readiness. With activated Bluetooth now the app to call - the sensor has been recognized with me immediately - done!
The provider recommends a calibration before each use - to a button must be pressed and the bats are laid flat on the ground three seconds only in the app.

For me, the start-up took less than 30 seconds before the first game and everything worked immediately.

FUNCTIONALITY:

The recording works from the very first moment perfectly. The app shows the number of beats to (forehand, backhand, serve) and this respectively in absolute or percentage. Also a distinction is made between flat, topspin or slice shots. In addition, the force of the blows is displayed on a scale from 1-100 and compared to the average. At forehand and backhand which is quite interesting - when serving it shows unfortunately almost continuously the maximum value 100 - for all the similarly fast as I serve the function thus useless.

The most useful feature in my opinion is the shot pattern on the bat, so whether the balls in the "sweet spot" (in the middle of the racket) or more hits on the edge. I was skeptical at first, but the shot pattern aligns well with my own assessment.

Then there is a special recording mode, the APP, which unfortunately has to be activated before the cell phone: The 3D recording of the Service. For myself, not really necessary, but good for beginners to get a clean racket leadership during impact.

Last but not least draws the APP also Playtime (gross and net), which I find as very useful to see whether the one or the other minute is wasted in training.

HAPTICS:

I initially had concerns that the mounted sensor would bother me while batting - that's not the case. At the beginning you will notice the difference yet, after one or two sessions this has, however, done.
However: be through, albeit light weight, the balance of the racket changes toward the handle - depending on the outcome bat this changes the game behavior something. So who is very sensitive in the racket balance, should think carefully about whether to take these (amateur and mediocre club players certainly negligible) drawback in purchasing.

Criticisms:

Now that I've recorded a few hours with the app, there are also a few points of criticism that will surely have a relevance to many:

* The battery should be able to capture approximately five hours of play. Unfortunately, this will discharge even in the inactive state, which means that you need to charge the sensor defakto always prior to use (and as described above is that without additional adapters only used on the computer)
* The recording does not differentiate between normal beats and volleys - can be technically indeed quasi not so easy to implement. The volleys then flow generally as "flat" strokes with a what a little distorted the statistics.
* As mentioned above, the PRO-Mount is actually mandatory. Too bad that you have to shell out for two plastic devices again 25 here.
* I would have liked comparative values, eg from professionals or Durschnittswerte all users or whatever. Also online app (eg with social sharing) would be analogous to many other wearables (runtastic Garmin, Nike) have been great.

On the whole, I am satisfied, it is and remains currently still a nice gimmick, which was unfortunately not quite thought through. With two Pro Mounts is priced at 175, which I think is fair - you can finally after a bat change the sensor further use.