Here is a smart bra that keeps you comfortable and reads biometric data to create personalized workouts. It analyzes your performance to help you reach your fitness goals faster. Its sensors capture speed, distance, calories burned, body position, workout intensity, and other data points.
HERA detects when you are doing too much and tells you to slow down. It talks to you while you train. This smart bra is getting funded on Kickstarter at this time.