Bottles are a necessity in life for formula fed babies as well as for breast fed ones. Baby bottles for breastfed babies will require a specific type of nipple on the bottle to help keep the transition from one to the other easier on them.
The nipples on a bottle for a breast fed baby should mimic an actual nipple. The stretch of it, the texture of it, and the shape of it will all make a difference to the little one. Some bottles geared toward breast fed babies will also come with single or dual venting that helps to relieve some of the air from hitting their tiny tummy.
Humans in general do not like change and tiny baby humans are no exception to that rule. Bottles that mimic a mothers natural breast are the best suited for breast fed babies. They will find that the transition from one to the other is easier.