The companion app on your Pebble will allow endless serve training sessions by remotely controlling Tennis Camera on your iPhone!

What is Tennis Camera?
The first fully automatic tool to measure your serve speed with your iPhone as in a professional tournament!

What it does? 
Tennis Camera does three unique things:
- Like a professional radar it automatically measures your Serve Speed and reconstruct the 3D trajectory of your shot;
- It tells you whether your serve was IN or OUT like a professional Hawk Eye;
- Helps you to track your improvements by logging all your results.

How it works?
We put together a bunch of technologies ranging from advanced computer visions algorithms, computational physics and the latest advancement in sport science to provide you a unique experience that all tennis players were waiting for!!

http://www.tenniscamera.com