To make the correct measurement for your feet width, Please follow bellow process:
1.Press the feet on the floor, let the feet endure the body weight. Your feet situation should be same when you wear the shoes and walking.
2.Take the soft ruler to measure the circumference of the widest portion of your feet. (around your feet , see the above measurement picture)
3.Please tell us which Euro size usually wear, we can take that as making reference
The heels are typically discovered on boots. Also, they should not be too slim or else it will not have the ability to support the wearer stably. Then don't worry since you could always select the ones that don't have heels, when it's not really possible that you walk in black platform heels.