This could revolutionize the way we use smart phones.. adding another sense on our phone usage.. I dont know how it will be done but it should be. Cartridges could be sold and plugged in to get the combination of smell.. Imagine getting the smell of waffles on yoir bed in the morning, or the smell of grass, or cheese or anything...
Certainly a concept I've not come across before for future enhancements @Ssmell
Perhaps send your thoughts to Samsung via your Samsung Members app in the feedback section.
Current Phone ~
Samsung Note 20 Ultra 5G SM-9820 _256Gb SnapDragon 865+
Samsung One Ui 2.5/ Android 10.