So you would like to know how well you perform in the bedroom? The i.Con Smart Condom Ring might help. It is a connected wearable device that gathers data on calories burned, thrusts, frequency, and everything in between. It lets you compare your results against those of others around the world.
You can charge the device through its micro USB port. i.Con has an adjustable, water resistant design. It will retail £59.99.