Meet the Ollinfit: a smart wearable device with 3 sensors that analyzes your form as you exercise to help you shed bad habits. It provides you with audio and vibration feedback to correct your mistakes. Its app analyzes the sensor data in real-time and guides you. Ollinfit can even recommend if you need to increase or decrease your weight for the next set.
Ollinfit is shockproof and sweat-proof. The battery life lasts for up to 14 days. You can find more information on Kickstarter.