1. Tanya Deryabina

2. Help monitor physical characteristics of sportsman Identify the strengths and weaknesses of the athlete Let coach create a strategy of winning Make fitness routine more effective

3. Popular all over the world Prestigious tournaments Valuable rewards Creation wearables, which will be custom made for tennis

4. Costs $205 Inventor: Zepp (US) impact power of the ball type of stroke consistency of racket placement the time you spent on the tennis court impact power of the ball type of stroke consistency of racket placement the time you spent on the tennis court

5. Costs $550 Inventor: Babolat (France) placement of the ball on the racket head number and type of shots amount of spin placement of the ball on the racket head number and type of shots amount of spin

6. Price will be announced Inventor: Ralph Lauren (US) heart rate how you breathe stress levels stepcounts and calories burned. heart rate how you breathe stress levels stepcounts and calories burned.

7. Costs $119 Inventor: Smash Wearables (Australia) angles and pressure on the arm number of shots distinguish between forehand, backhand and serve speed of swing impact force on racket angles and pressure on the arm number of shots distinguish between forehand, backhand and serve speed of swing impact force on racket

8.  https://gigaom.com/2014/08/25/a-closer-look-at-the-connected-biosensing-ralph- lauren-shirts-youll-see-during-the-us-open/ https://gigaom.com/2014/08/25/a-closer-look-at-the-connected-biosensing-ralph- lauren-shirts-youll-see-during-the-us-open/  http://www.brw.com.au/p/tech- gadgets/smash_wearables_hits_tennis_sweet_imjT2XkZ5wReAXMNBBqNNL http://www.brw.com.au/p/tech- gadgets/smash_wearables_hits_tennis_sweet_imjT2XkZ5wReAXMNBBqNNL  http://www.wearable-technologies.com/2014/11/tenniswearabletech/ http://www.wearable-technologies.com/2014/11/tenniswearabletech/