Head Racquet Sensor......Powered by ZEPP!

Looking forward to seeing how this one tests.

The design trumps ZEPP already as the sensor fits in the cap of Head racquets. Hopefully the sensor goes a lot further than ZEPP as well.

We'll be finding out in coming days when we test the prototype.
 

Geoff

Hall of Fame
Looking forward to seeing how this one tests.

The design trumps ZEPP already as the sensor fits in the cap of Head racquets. Hopefully the sensor goes a lot further than ZEPP as well.

We'll be finding out in coming days when we test the prototype.
I saw it yesterday. The trap door snaps out and it snaps in place. Looks almost identical to the trap door. Has a magnetic usb charger. Appears to turn on by motion. Looking forward to your playtest and review.
 

Geoff

Hall of Fame
What’s unique about this sensor? How is it different from other sensor on market?
One of the biggest features is that it does not change the weight balance or swingweight of the Racquet. Another is that it works on the current and previous generation Head racquets. Also no special adapter is required
 
One of the biggest features is that it does not change the weight balance or swingweight of the Racquet. Another is that it works on the current and previous generation Head racquets. Also no special adapter is required
Yep, yep and yep. And they're all pretty big reasons to like it. Anything that doesn't change the specs of the racquet is pretty huge. The only thing that's come close so far is the Babolat Play racquet. The Head Sensor doesn't have buttons on the device which means the hardware wins out against the Bab. Added bonus is the Babolat Play only came in 3 versions of Babolat racquets - rather narrow market.

The question now is whether the app and accuracy side of it can beat some of its ordinary predecessors......some testing today on Head's accuracy was positive. More to do.

Then there's the new Zepp 2, which is likely to be very similar (if not the same) as the Head Sensor in the analytics and app. This time you have to deal with some extra weight in the handle, as well as the protrusion of the device on the cap. The original Zepp was mounted either via the "flex" or "pro" mounts - neither made it particularly usable. While both mounts still exist with Zepp 2, there's the advantage of an "Insert" mount. It's only for Wilson, Prince and Srixon racquets and is attached to the stick in much the same way as the Sony Smart Sensor.

We'll start testing the Zepp 2 on Wednesday 1st November..........and we'll use Wilson racquets!
 
Hello @Nick - Gadget Tennis
Any updates on Babolats new Sensor that has been talked about? It seems to be similar to the Head sensor. Thanks in advance. Not meaning to derail this thread!
Rumour has it there are prototypes floating around the world, but noone's getting their hands on one, including us at this stage. Our understanding is it will be similar to Head in that it will fit Babolat racquets in the cap. Unlike Head it will also convert to a string bed sensor for all other brands, like Qlipp. That part's interesting and concerning at the same time. The weight of the Qlipp in the string bed totally changes the specs of a racquet (not telling you anything you don't know!) so not sure whether Bab have "lightened the load" so to speak.

The Babolat Pulse isn't scheduled for release until the Northern Hemisphere Summer as we understand it. The Bab marketing machine needs time to heat the market up first! Meantime we'll keep trying to get our hands on a prototype, if one does exist.
 
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Iv got the new Head one. They are great. Pops into the butt of newer head rackets and barely noticeable
head-tennis-sensor-brand-new-2018
 

technoob10

New User
For those wondering if it'll work with other Head rackets with that buttcap, I asked TW and they responded with:
"The Head Sensor powered by Zepp is only compatible with Graphene Touch frames. You can fit the sensor in Graphene XT frames; however, there will be some spec variance when installed in these frames."
 

mr. G

New User
Hi!
can anyone comment on quality of the data? is it accurate?
And am I right that Head supported by Zepp is the same as ZEPP-II except for the mounting?
Thanks in advance.
 
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Regarding quality of data it is tough to ascertain it's reliability. In my head there are so many what ifs, does it measure swing speed etc but in a relatively cheap device what it can do is fantastic.
Iv only ever used the original zepp device.
Head seem to have bought the technology for this device
 

mr. G

New User
Regarding quality of data it is tough to ascertain it's reliability. In my head there are so many what ifs, does it measure swing speed etc but in a relatively cheap device what it can do is fantastic.

Does it always define correctly if it was topspin or slice? Would not it call it a serve instead, what do you think?
 

Jaakko

New User
First impressions – mixed feelings. I´ve been using Sony Sensor for over two yrs and pretty satisfied with it. However, as mentioned on gadgettennis.com this best of the sensors seems to be no more. That is why I got immediately interested about this new one when I noticed that such a thing would be available. Thanks to kind assistance by the local Head rep I got mine on the day it was released and now have tested it briefly. Good things first. Yes, it is solid and as advertised fits inside the handle so that you´ll not notice it as compared to the racquet without. Well, at least an amateur/eternal rookie like me will not be able to notice difference of the added 7 g. The app consistently recorded forehand and backhand but unfortunately failed with the serves quite dramatically. Unfortunately I noticed only afterwards that there were suggestions how to remedy this, or at least try to do it on the Head sensor web-page. What I miss from the Sony app is the possibility to check your record also afterwards in quite good detail. At least with the current version (1.0) this doesn´t seem to be possible with the head sensor. You can check each stroke immediately while your session is still “alive”. Hopefully they will fix this obvious deficiency in the future releases of the app. Planning to contact also their service team to ask advice on this. Anyway, I think there certainly is potential and I surely love the secure feeling about the sensor. The Sony got off so easily, and because those parts that were supposed to keep it secured were plastic it also got worn out so much that in the end it was pretty much impossible to make numerous strokes in a row without getting it loose.

PS. got the sensor to fit also older models (extreme mpa + speed pro) after some adjusting+cutting+filing, luckily had appropriate equipment for this that was purchased for modification of alpine boots
 

geom

New User
What I miss from the Sony app is the possibility to check your record also afterwards in quite good detail. At least with the current version (1.0) this doesn´t seem to be possible with the head sensor. You can check each stroke immediately while your session is still “alive”. Hopefully they will fix this obvious deficiency in the future releases of the app. Planning to contact also their service team to ask advice on this.

@Jaakko - so the app does not allow you to go back and view the specific detail about the individual strokes that make up a session? Is only summary data (averages, etc) available for a saved session?
 

Jaakko

New User
Yes, that is my understanding, or at least, I haven´t been able to figure out how to do it. However, as yet, I haven´t got a reply from Head/Zepp support that I contacted last week to get the address for the app. I suggested in my message to add this feature in the future version. But, not being a code warrior myself, I have no idea how easy/difficult this would be.
One nice feature, that I forgot to mention, is that spin, unlike in Sony, is displayed as rpm. How accurate these estimates, I don´t know. This, as many other things, are real professionals like gadgettennis.com to test.
 

Jaakko

New User
Now got a reply from Zepplabs support, and yes, in the current version of the Head sensor app there is no possibility to check individual strokes afterwards, only during the session. However, this is in their roadmap and I was recommended to follow closely their later releases. Hopefully this update will happen sooner than later.
 

v-verb

Hall of Fame
Will this be compatible with the Apple Watch? I see the Zepp one is but don't see an Apple watch app for the Head tennis sensor
 

John WIllis

New User
Its awesome. I have used one and its great! Highly recommend it. Also has anyone heard of this new thing called Neuro Tennis? Getting a bit of a buzz about providing auditory feedback when you play.
 

Paulo Braz

Semi-Pro
From what I see the compatibility of this sensor gives by the racket buttcap. So if I take the buttcap from a Head racket and put on another racket, for example my Angell TC95, will the sensor fit perfectly? Well I recently bought a Zepp tennis 2, but the fact that the sensor stays out of the racket bothers me too much, so much so that I'm even thinking of creating a buttcap in the 3d printer to leave the internal sensor.
 

ajc28

New User
I’ve been into fitness tracking for a few years having used Garmin and now Fitbit and am always keen on new technology. I had been following the Courtmatics Smart Dampener and ended up pre-ordering it, but when this was released I decided to cancel that and order this instead. Main reasons being that I have recently bought one of the latest Head racquets, and being a big tennis brand I assume Head will continue to support and develop this and are not likely to fold any time soon, whereas being a start-up Courtmatics could end up going bust if the product doesn’t work out and then there will be no support. I also assume a butt-cap is less likely than a dampener to fly off during play and get lost. Ordered from Tennis Warehouse last week and it arrived to New Zealand in 6 days which was great. Often can’t get something domestic delivered that quickly!

Looking forward to testing it out tonight, so any tips from anyone who has used it so far? Have you had to keep your phone by the court to capture data live, or have you been able to sync it to the app later? I don’t tend to have my phone on the court so would prefer to be able to store info and sync later if that works. Head replied to me on Facebook saying you can do that so would be interested to hear anyone’s experience. I set it up yesterday and tried a few swings with the 3D swing mode and play mode to see what would happen but it didn’t pick up anything, so I assume it needs to feel the impact of hitting the ball for anything to happen. Will report on my experiences after using it tonight.
 

StefG

New User
I’ve been into fitness tracking for a few years having used Garmin and now Fitbit and am always keen on new technology. I had been following the Courtmatics Smart Dampener and ended up pre-ordering it, but when this was released I decided to cancel that and order this instead. Main reasons being that I have recently bought one of the latest Head racquets, and being a big tennis brand I assume Head will continue to support and develop this and are not likely to fold any time soon, whereas being a start-up Courtmatics could end up going bust if the product doesn’t work out and then there will be no support. I also assume a butt-cap is less likely than a dampener to fly off during play and get lost. Ordered from Tennis Warehouse last week and it arrived to New Zealand in 6 days which was great. Often can’t get something domestic delivered that quickly!

Looking forward to testing it out tonight, so any tips from anyone who has used it so far? Have you had to keep your phone by the court to capture data live, or have you been able to sync it to the app later? I don’t tend to have my phone on the court so would prefer to be able to store info and sync later if that works. Head replied to me on Facebook saying you can do that so would be interested to hear anyone’s experience. I set it up yesterday and tried a few swings with the 3D swing mode and play mode to see what would happen but it didn’t pick up anything, so I assume it needs to feel the impact of hitting the ball for anything to happen. Will report on my experiences after using it tonight.

Thanks ! I have also being considering the Courtmatics. Curious to hear your experience and also if you think the Head sensor can be made to fit a Babolat recket.
 

nimo

New User
I also just got the Head Sensor. I tested the original Zepp and the Sony Smart Sensor. The Zepp 1 was a nice gadget but the data and app were not really delivering added value to my tennis game. The Sony Smart Sensor data and app were much better, with the shot by shot details and offline recording capability. However for both the added weight and "external" design affected my strokes (at least my feeling) and made it impossible to use on a regular basis.

For this reason (and having a Head Radical Touch MP), I got the Head Sensor. The design is just perfect and you cannot notice the difference between the regular cap and the sensor (both 7gr) and not added vibration (it was an issue with the Sony). The sensor sync smoothly with you device (I used it on iOS) but they need to work on the App; eg Speed, RPM and heaviness are very interesting data but there is no stroke by stroke details, only average and max; the color scheme on the ball impact display are not fantastics in my opinion (do prefer the Sony app colors with green to red impact points).

I wrote the Head Sensor support team (which is Zepp team) and they confirm me that they are working on a stroke by stroke details and other improvements. However they don't share the roadmap, the future features or any further information (eg. offline tracking).

To summarize: finally a sensor with ideal design (for 2018 Head racquets' users), good features but 'work in progress' app.
 

ajc28

New User
Had a casual hit and used it for the first time last night and the info you get from it is pretty cool. I had my phone in my bag next to the court and had a Play session running. Was interesting to check it when getting a drink etc and looking through the individual strokes. In total it said I played for 1 hour 34 minutes, hit 442 strokes and burned 842 calories. Don’t know how accurate any of it is but regarding the calorie measure, my Fitbit said I burned 867 so those numbers being pretty close gives me confidence that the real figure wouldn’t be far off, perhaps in between the two measures. Better than if the difference had been several hundred anyway. I didn’t play very well but I suspect I was thinking more about the sensor than my game and maybe putting a bit too much effort into shots.

Onto the actual tennis measures, I’ll share a couple of screenshots from the app below. My backhand is stronger than my forehand so it makes sense that I hit a greater percentage out of the sweetspot (75% compared to 68%) and the average ball speed is higher, though my max forehand ball speed was higher which was a surprise. 75% of my backhand were drives which I’d expect as I tend to hit flat and powerful rather than with top spin. It seems to have picked up serves as smashes as I only remember hitting 3 or 4 smashes rather than the 82 it says I hit and many more serves than 34, which I guess is understandable as they are essentially the same action, and it gives roughly the same speeds (average 117kph and max 135kph for serve and 116 avg and 132 max for smash). I had my serve tested with a speed gun at the Australia Open when I went in 2014 and I think it was 108 then, but not in proper clothes or with my own racquet etc and I’m stronger and have a better serve action since then so those speeds seem believable and my friend who is a much higher level player than me thought they sounded pretty close.

The one it seems to have struggled with is volleys. I think it must have picked up slices as volleys as it says I hit 63 volleys but only 11 slices (9 forehand and 3 backhand) and it was probably more the other way around. I was trying to work on backhand slice and hit a lot more than 3 so I’m guessing they have gone in as volleys. Maybe something that could be made more accurate with software updates.

As for the app I like the information you get. An update I’d like to see is the ability to go back through the session to view individual strokes after you have ended it as you can only do this during the session at the moment. Ok if you’re just practising or playing casually like last night but you wouldn’t be looking through your phone during an actual match. Would also be good to have a share button so you can share to social media or messenger etc as I wanted to send some to my friend and had to take screenshots instead. Planning to have another hit tonight if the rain stays away so this time I might try not having a session running on my phone and see if it syncs the information afterwards. I also love that the device does not change the feel of the racquet and it's in solid enough that it won't fall out.

Screenshots of the overall summary and then backhand:

Screenshot_2018-01-31-22-20-52.jpg


Screenshot_2018-01-31-22-21-09.jpg
 

mr. G

New User
I wrote the Head Sensor support team (which is Zepp team) and they confirm me that they are working on a stroke by stroke details and other improvements. However they don't share the roadmap, the future features or any further information (eg. offline tracking).

To summarize: finally a sensor with ideal design (for 2018 Head racquets' users), good features but 'work in progress' app.

I suggest stroke by stroke statistics is easy to add to the app. It has the data. Just a matter of making it visible. But it will show the accuracy of the data (; which is no good for every sensor except Sony. So this feature will not be released before the data quality is improved significantly. I guess we should not expect it soon. Hope that I am wrong...
 

ajc28

New User
Didn't get to have a practice again on Thursday due to rain but used it in a proper match for the first time yesterday with it being my first interclub match of the new year. Had a good day winning doubles 7-6 7-5 and winning my singles 6-2 6-4. Was good to see the stats support how I felt about my game. Thought I played a bit more cautious and consistent compared to the practice I posted about above where I was probably more concerned with the sensor than playing well and may have been trying a bit too hard. Stats showed a higher percentage in the sweetspot for all strokes, and slightly lower speeds yesterday which seem to support that.

Again I kept my phone in my bag beside the court and had a separate play session running for both matches, doubles being 1 hour 34 and singles 1 hour 21 (bit of a battery drain on the phone really). I didn't play very well in the doubles to be honest, but a lot better in the singles and again the stats would seem to support that (higher percentages in the sweetspot and higher speeds). As with the other day it seems to have recognised a lot of serves as smashes, which I guess is not a massive deal since you get all the same information for each, and many more volleys and too few slices which is a bit more annoying. As for the battery life, I have used it for about 4 and a half hours in total now between a practice session, a doubles match and a singles match and the app says there is 52% battery left, so you can get a decent amount of play out of it before needing to charge it.

All in all really enjoying using it so far and find it to be a great tool to track progress. Of particular interest for me at the moment is the sweetspot percentage, which for most strokes was around the early to mid 70s yesterday so that's an area where I'd like to see the number increase which should be a result of timing shots better and striking the ball more accurately.

The app also includes a feedback box so after my first use I submitted some which basically summarised what I posted above - that I'd like to be able see stroke by stroke analysis for past sessions and the ability to share to social media, and expressed my concerns about serves being recognised as smashes and slices being picked us as volleys. Wasn't expecting or really looking for a reply but they emailed me the below yesterday, so good to know the feedback is being monitored and they are continuing to develop it.

Thanks for your great feedbacks sent to us early this week.
The features you requested, strike-by-strike statistics and social media sharable report, are already in our roadmap, we will provide to our customers in the future App upgrade, please kindly stay tuned.
Considering the accuracy of Smash and Volley, we have done a lot of testing and model-training for our algorithms, data capturing and processing. However, there must be some more improvement we need to do continually.
As you mentioned, and as you most convenience, may I request you take some more Smashes and Volleys separately and then we could analysis the data for you specifically?
Could you please follow these steps to collect your Smashes and Volleys:
1. Open and login the HEAD Tennis App: TRAIN tab → RECOMMENDED COURSES → Magnifier Icon on the upper right (as attached Pic1)
2. Scroll down the ALL COURSES list, find Smash Power I, then click and download the course, and capture all your Smashes (as attached Pic2)
3. Scroll down more the ALL COURSES list, find Volley Power I, then click and download the course, and capture all your Volleys
Thank you so much for your concern and interests, we really look forward to hearing from you and analysis your personal swing data for you to improve your experience.
Best,
HEAD and Zepp Customer Support, U.S.
 
So it sounds like it has a hard time picking up serves and spin. Not much better than other sensors.

How would you use this data if you have no idea how the shot turned out? Great if you hit the sweet spot unless the shot was out or too shallow. I am curious, since this is why I lost interest in these sensors.
 

nimo

New User
I suggest stroke by stroke statistics is easy to add to the app. It has the data. Just a matter of making it visible. But it will show the accuracy of the data (; which is no good for every sensor except Sony. So this feature will not be released before the data quality is improved significantly. I guess we should not expect it soon. Hope that I am wrong...

The accuracy could be indeed an issue. However each shot data is available "live" on the phone during the play. It is just not available after in the session's review. We will see in the future software updates. It would be nice to have a comparison between the sensors and the data from a PlaySight system.
 

Paulo Braz

Semi-Pro
My new buttcap to let the sensor built-in. I will attach it with a double-sided 3M tape on the bottom of the buttcap. It was designed in Autodesk Inventor and printed on the 3D printer. Weighing 7 grams, it was made for the cable of the Angell Custom tc95 L3
cb0b69c3bd1c08488c687173ef4785e9.jpg


Enviado de meu MI 6 usando Tapatalk
cb0ea3b33aa42b92492da95f25b32438.jpg
85119bef0c6cccc94134fb678243cfca.jpg
 

ajc28

New User
Had another couple of hits this week after a firmware update and seems there has been an improvement in the serve/smash issue. For my first 3 uses it was recording at least twice the amount of smashes as it recorded serves (one session it said 19 serves and 47 smashes when in reality it would have been mostly serves and a handful of smashes). After the update the two times I’ve hit this week it’s recorded three times as many serves than smashes so looks like there has been an improvement there. Still a few too many smashes but it’s now more like a handful more rather than ten times too many. Still getting too many volleys and not enough slice though. I wonder if it thinks the times I bounce the ball with the racquet is a volley since I do that often and it obviously involves less of a swing than a regular shot and the numbers would kind of make sense.

Also decided to test not running a play session and just connected it to the app afterwards to see what happened and it gave me the summary stats you get at the end but it doesn’t show up as a session in your history. When you go back through the days, the summary shows up on that date and the numbers seem to be included when you check overall monthly and yearly stats, but you can’t see that one on the list of sessions.
 

akwaba

New User
Hi, here somes results between babolat pop and head sensor at the same time (careful, i'm not saying one is more accurate than the other, it's just quick comparison as i wear them at the same time).
i'ts with the latest head update (wich is really best than before to not mix serve and smatch)
https://drive.google.com/file/d/1HH-NnKTmmxyZhXzcNTFNAl6hElak1zIQ/view?usp=sharing

> i'm not sure that POP detect well lift/flat on forehand because when i have try to exagerate lift months before, it still majority "flat". I think head is better on this part as data seems to be more ok with how i hav played. il will verify this with video next time.

> therefore, head have a small problem with volley, i though that it get forehand as volley, but i'm not sure of that, as in GAME 2 , head detect more forehand than pop and head still detect volley on more... maybe when i throw or pick up balls with raquet ???
 
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nimo

New User
The sensor detects as volley when you pick-up balls using the racquet parallel to the ground to make in bounce. Nothing tragic but I have to take it in account.

More problematic, the confusion between Serves and Smashs. Am I the only one experiencing more errors since the app update?
 

akwaba

New User
i had this problem with the first version, but since update, it seems really better. The last two set, it cpunt 56 serves for 8 smatch and i remember around 3 or 4 smatch. so not perfect but largely better than before update.
i have 1.02 build 31-20180209
but, i have 2 problems :
> i don't understand well something :
- when racket work alone and store data and when connect transfer to apk with bluetooth , data seems right (about time of play i mean)
- and when i start a competition from the apk , in this case, very often, i play for 40 min, and it show me 10 min... as bluetooth has been lost ???. therefore when i put racket near apk after the match, the miss data aren't tranfer to apk ...so the whole match is not present... it seems that when you start something from apk, no data are store on head sensor... so lost connection = lost data ??
> a small thing but very useful : i can not delete a competition...
 

v-verb

Hall of Fame
I also just got the Head Sensor. I tested the original Zepp and the Sony Smart Sensor. The Zepp 1 was a nice gadget but the data and app were not really delivering added value to my tennis game. The Sony Smart Sensor data and app were much better, with the shot by shot details and offline recording capability. However for both the added weight and "external" design affected my strokes (at least my feeling) and made it impossible to use on a regular basis.

For this reason (and having a Head Radical Touch MP), I got the Head Sensor. The design is just perfect and you cannot notice the difference between the regular cap and the sensor (both 7gr) and not added vibration (it was an issue with the Sony). The sensor sync smoothly with you device (I used it on iOS) but they need to work on the App; eg Speed, RPM and heaviness are very interesting data but there is no stroke by stroke details, only average and max; the color scheme on the ball impact display are not fantastics in my opinion (do prefer the Sony app colors with green to red impact points).

I wrote the Head Sensor support team (which is Zepp team) and they confirm me that they are working on a stroke by stroke details and other improvements. However they don't share the roadmap, the future features or any further information (eg. offline tracking).

To summarize: finally a sensor with ideal design (for 2018 Head racquets' users), good features but 'work in progress' app.

I was toying with the idea of getting a Head stick that approximated my fave stick (Prince Thunderstick mid) and 2nd fave (RF97) but that's impossible. So I got the Zepp 2 and use the stick on mounting for the Prince and the inside mount for he RF97.

As well I got an Apple Series 1 watch (although Zepp says only series 2 and 3 work) and get stroke by stroke stats as I play. It's actually helped my tennis.

I don't think the Head Sensor presently supports Apple Watch but I expect it will soon. And BTW the Zepp 2 isn't very obtrusive. However if Wilson comes out with a similar setup to the Head system I might get one for the RF97
 

v-verb

Hall of Fame
I also just got the Head Sensor. I tested the original Zepp and the Sony Smart Sensor. The Zepp 1 was a nice gadget but the data and app were not really delivering added value to my tennis game. The Sony Smart Sensor data and app were much better, with the shot by shot details and offline recording capability. However for both the added weight and "external" design affected my strokes (at least my feeling) and made it impossible to use on a regular basis.

For this reason (and having a Head Radical Touch MP), I got the Head Sensor. The design is just perfect and you cannot notice the difference between the regular cap and the sensor (both 7gr) and not added vibration (it was an issue with the Sony). The sensor sync smoothly with you device (I used it on iOS) but they need to work on the App; eg Speed, RPM and heaviness are very interesting data but there is no stroke by stroke details, only average and max; the color scheme on the ball impact display are not fantastics in my opinion (do prefer the Sony app colors with green to red impact points).

I wrote the Head Sensor support team (which is Zepp team) and they confirm me that they are working on a stroke by stroke details and other improvements. However they don't share the roadmap, the future features or any further information (eg. offline tracking).

To summarize: finally a sensor with ideal design (for 2018 Head racquets' users), good features but 'work in progress' app.

I was toying with the idea of getting a Head stick that approximated my fave stick (Prince Thunderstick mid) and 2nd fave (RF97) and use the Head Sensor, but that's impossible. So I got the Zepp 2 and use the stick on mounting for the Prince and the inside mount for he RF97.

As well I got an Apple Series 1 watch (although Zepp says only series 2 and 3 work) and get stroke by stroke stats as I play. It's actually helped my tennis.

I don't think the Head Sensor presently supports Apple Watch but I expect it will soon. And BTW the Zepp 2 isn't very obtrusive. However if Wilson comes out with a similar setup to the Head system I might get one for the RF97
 

akwaba

New User
Hi
i have made some small separate accuracy test with head sensor (version 1.03 build 34-20180321)

> 10 FH lift in real --> 9 FH lift / 1 FH flat detected (have to say that i'm not a natural FH lifter)
> 12 FH flat in real --> 12 FH flat detected
> 10 FH slice in real --> 10 FH slice detected
-------------------------------------------------------------
> 10 BH lift in real --> 5 BH lift / 5 BH flat detected (have to say that i'm not a natural BH lifter)
> 10 BH flat in real --> 1 BH lift / 9 BH flat detected
> 10 BH slice in real --> 10 BH slice detected
-------------------------------------------------------------
> 14 FHVolley in real --> 14 FHVolley detected
> 10 BHVolley in real --> 1 BH slice / 1BH flat /8 BHVolley detected --> A/
--------------------------------------------------------------
A/ - As i have detect some confusion with backhand volley an backhand, i make an an another test with backhand volley not above the net but under the net
> 7 BHVolley in real --> 5 BH slice / 2 BHVolley --> so when volley are low it's seems hard (and logical) that backhand volley can be a backhand detect...
I try the same thing with forehand volley, under the net, to see
> 8 FHVolley in real --> 1 FH slice / 7 FHVolley --> distinction seems better on FH, maybe because on forehand, even low volley aren't so slice in forehand than backhand ?!
---------------------------------------------------------------
> 10 Serve in real --> 1 smash / 9 serve detected
> 12 smach in real --> 1 smash / 11 serves detected --> B/
----------------------------------------------------------------
B/ - this not confirme that i though (and confirm what nino say) . But i have to test in real game, why ? for smash, my friend throw me balls but i was already at the net and static... like you are when you are ready to serve. Maybe the algorithm can detect that if you are moving before the shot it will be a smash and not a serve ?!!
 

mr. G

New User
Hi...
Maybe the algorithm can detect that if you are moving before the shot it will be a smash and not a serve ?!!

It also should be in the algorithm to mark a smash instead of serve if you have made a previous shot not longer than 5-6 seconds before. So... please let us know if real game statistics is more clear.
 

eelhc

Hall of Fame
It's still a work in progress but for me.... the In/Out provides better game/play analysis than any racquet/wrist sensor that extrapolates the information rather than measuring it.

If one thinks of the In/Out not as a line calling device but rather as a game analysis tool, it runs circles around these buttcap sensors.
 

akwaba

New User
Yesterday, i play quickly and with no test aim... 30 min of serves, 30 min free ball, 1 hour super tie break in 10 points. I didn't have my phone with me, so i collect data when back at house. An here, you see that software is not ideal. As you don't have a timeline as sony sensor, it's impossible to divide serves from the 30 min serves training than serves from super tie break. It count 110 volley and for sure i didn't make 110 volley, but again when it count them... i don't know. So if you want to separate your game, you need your phone and start and stop "play game" each time you want to split a session. Of course, even in one session you haven't timeline of your points.

I have to retest accuracy, as i saw a RED arrow under the green racket on the apk software... this means there's a firmware update. But i don't know if this firmware comes with the apk update or after, so maybe accurate test will be best after this firmware update??? as i made precedent test without this firmware update (only apk update... :().
 

Jaakko

New User
Great news for all of us, sensor geeks, Head has updated the software, and now it is possible to see stroke by stroke history of the sessions! While watching Nadal-Tsitsipas final I used a brief rain break to give the sensor a brief go, and yes, it works as expected. One can check the history, and sort it even by stroke type. If you don´t have, as yet, a Head racquet, this makes it well worth considering to buy one.
 

mr. G

New User
Do you guys know if it is possible to install a modern buttcap for sensor to iPrestige and/or Radical tour bumblebee?
 

Moppet52

Rookie
I just recently switched to Graphene Touch Prestige Mid, and purchased a Head Zepp sensor. Have had 4 hitting sessions with it so far, and love going through the information. Looking forward to using the 3D serve functionality this weekend.

Anyone know where you can view your stats vs. a community that uses the sensor?

Thanks
 

armandogomes

New User
Hello all,

So, what's the recent feedback? Is worth the buy?

I tried one with a demo racket from TW but now that I've got my own, I was wondering if it would be a nice addition. I enjoyed it, but it's still somewhat "pricey"...

Cheers!
 
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