Here is a smart jump rope that combines with your phone to track your workouts. The Raynolse Jump Rope can track up to 30 jumps per second. It is smart enough to track your workout sessions and rests. It can recognize different jump patterns and gives you feedback with its vibrating handles.
This jump rope has an adjustable design. It has 4 non-contact magnetic hall sensors to track your wave patterns during your workouts. Raynolse has 3 different workout modes. You can find out more about it here.