What is the degree symbol on an iphone?

The degree symbol, often known as the degree indicator, is a typographical sign used to denote degrees of arc (for example, in geographic reference systems), hours (in medicine), degrees of heat, and alcohol evidence, amongst other items. A little elevated circle, originally a zero glyph, makes up the sign.
Using your iPad or iPhone’s iOS keyboard:
To access the numerical keyboard, first press the “123” button.
By touching and holding the 0 (zero) icon, you may now see the degree symbol.
A degree sign will show, and you may pick it from a pop-up option that appears over the button.